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Document and Entity Information - USD ($) shares in Millions	12 Months Ended
	Feb. 01, 2020	Mar. 16, 2020	Aug. 02, 2019
Cover page.
Document Type	10-K
Entity Central Index Key	0001058057
Current Fiscal Year End Date	--02-01
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	FY
Amendment Flag	false
Document Annual Report	true
Document Period End Date	Feb. 01, 2020
Document Transition Report	false
Entity File Number	0-30877
Entity Registrant Name	Marvell Technology Group Ltd
Entity Incorporation, State or Country Code	D0
Entity Tax Identification Number	77-0481679
Entity Address, Address Line One	Canon’s Court, 22 Victoria Street
Entity Address, City or Town	Hamilton
Entity Address, Postal Zip Code	HM 12
Entity Address, Country	BM
City Area Code	441
Local Phone Number	296-6395
Title of 12(b) Security	Common shares, $0.002 par value per share
Trading Symbol	MRVL
Security Exchange Name	NASDAQ
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Public Float			$ 16,535,444,225
Entity Common Stock, Shares Outstanding		663.1
Documents Incorporated by Reference	Portions of Part III of this Form 10-K are incorporated by reference from the registrant’s definitive proxy statement for its 2020 annual general meeting of shareholders, which proxy statement will be filed with the Securities and Exchange Commission within 120 days after the end of the fiscal year covered by this Form 10-K. Except with respect to information specifically incorporated by reference in this Form 10-K, the proxy statement is not deemed to be filed as part of this Form 10-K.

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Feb. 01, 2020	Feb. 02, 2019
Current assets:
Cash and cash equivalents	$ 647,604	$ 582,410
Accounts receivable, net	492,346	493,122
Inventories	322,980	276,005
Prepaid expenses and other current assets	74,567	43,721
Total current assets	1,537,497	1,395,258
Property and equipment, net	357,092	318,978
Goodwill	5,337,405	5,494,505
Acquired intangible assets, net	2,764,600	2,560,682
Deferred tax assets	639,791	12,460
Other non-current assets	496,850	234,869
Total assets	11,133,235	10,016,752
Current liabilities:
Accounts payable	213,747	185,362
Accrued liabilities	346,639	335,509
Accrued employee compensation	149,780	115,925
Total current liabilities	710,166	636,796
Long-term debt	1,439,024	1,732,699
Deferred tax liabilities	31,233	246,252
Other non-current liabilities	274,232	94,595
Total liabilities	2,454,655	2,710,342
Commitments and contingencies
Shareholders’ equity:
Preferred stock, $0.002 par value; 8,000 shares authorized; no shares issued and outstanding	0	0
Common stock, $0.002 par value; 992,000 shares authorized; 663,481 and 658,514 shares issued and outstanding in fiscal 2020 and 2019, respectively	1,328	1,317
Additional paid-in capital	6,135,939	6,188,598
Retained earnings	2,541,313	1,116,495
Total shareholders’ equity	8,678,580	7,306,410
Total liabilities and shareholders’ equity	$ 11,133,235	$ 10,016,752

CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares	Feb. 01, 2020	Feb. 02, 2019
Statement of Financial Position [Abstract]
Preferred stock, par value (in usd per share)	$ 0.002	$ 0.002
Preferred stock, shares authorized (in shares)	8,000,000	8,000,000
Preferred stock, shares issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0	0
Common stock, par value (in usd per share)	$ 0.002	$ 0.002
Common stock, shares authorized (in shares)	992,000,000	992,000,000
Common stock, shares issued (in shares)	663,481,000	663,481,000
Common stock, shares outstanding (in shares)	663,481,000	658,514,000

CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Feb. 01, 2020	Feb. 02, 2019	Feb. 03, 2018
Income Statement [Abstract]
Net revenue	$ 2,699,161	$ 2,865,791	$ 2,409,170
Cost of goods sold	1,342,220	1,407,399	947,230
Gross profit	1,356,941	1,458,392	1,461,940
Operating expenses:
Research and development	1,080,391	914,009	714,444
Selling, general and administrative	464,580	424,360	238,166
Litigation settlement	0	0	74,385
Restructuring related charges	55,328	76,753	5,250
Total operating expenses	1,600,299	1,415,122	1,032,245
Operating income (loss) from continuing operations	(243,358)	43,270	429,695
Interest income	4,816	11,926	17,381
Interest expense	(85,631)	(60,362)	(685)
Other income, net	1,122,555	519	4,813
Interest and other income (loss), net	1,041,740	(47,917)	21,509
Income (loss) from continuing operations before income taxes	798,382	(4,647)	451,204
Provision (benefit) for income taxes	(786,009)	174,447	18,062
Income (loss) from continuing operations, net of tax	1,584,391	(179,094)	433,142
Income (loss) from discontinued operations, net of tax	0	0	87,689
Net income (loss)	$ 1,584,391	$ (179,094)	$ 520,831
Net income (loss) per share - Basic:
Continuing operations (in usd per share)	$ 2.38	$ (0.30)	$ 0.87
Discontinued operations (in usd per share)	0	0	0.18
Net Income (loss) per share - Basic (in usd per share)	2.38	(0.30)	1.05
Net income (loss) per share - Diluted:
Continuing operations (in usd per share)	2.34	(0.30)	0.85
Discontinued operations (in usd per share)	0	0	0.17
Net Income (loss) per share - diluted (in usd per share)	$ 2.34	$ (0.30)	$ 1.02
Weighted-average shares:
Basic (in shares)	664,709	591,232	498,008
Diluted (in shares)	676,094	591,232	509,667

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	12 Months Ended
	Feb. 01, 2020	Feb. 02, 2019	Feb. 03, 2018
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 1,584,391	$ (179,094)	$ 520,831
Other comprehensive income (loss), net of tax:
Net change in unrealized gain (loss) on marketable securities	0	2,322	(1,521)
Net change in unrealized gain (loss) on cash flow hedges	0	0	(824)
Other comprehensive income (loss), net of tax	0	2,322	(2,345)
Comprehensive income (loss), net of tax	$ 1,584,391	$ (176,772)	$ 518,486

- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

+ References + Details

CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Accumulated Other Comprehensive Income (Loss)	Retained Earnings
Balance at beginning of period (in shares) at Jan. 28, 2017		506,095
Balance at beginning of period at Jan. 28, 2017	$ 4,027,651	$ 1,012	$ 3,016,775	$ 23	$ 1,009,841
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of ordinary shares in connection with equity incentive plans (in shares)		21,278
Issuance of ordinary shares in connection with equity incentive plans	180,302	$ 42	180,260
Tax withholdings related to net share settlement of restricted stock units	(26,840)		(26,840)
Share-based compensation	$ 87,140		87,140
Repurchase of common stock (in shares)	(31,460)	(31,460)
Repurchase of common stock	$ (526,075)	$ (63)	(526,012)
Cash dividends declared and paid (cumulatively $0.24 per share)	(119,251)				(119,251)
Net income (loss)	520,831				520,831
Other Comprehensive income (loss)	(2,345)			(2,345)
Balance at end of period (in shares) at Feb. 03, 2018		495,913
Balance at end of period at Feb. 03, 2018	4,141,413	$ 991	2,733,292	(2,322)	1,409,452
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of ordinary shares in connection with equity incentive plans (in shares)		14,164
Issuance of ordinary shares in connection with equity incentive plans	101,169	$ 29	101,140
Tax withholdings related to net share settlement of restricted stock units	(54,934)		(54,934)
Share-based compensation	184,956		184,956
Common stock issued to Cavium common stockholders (in shares)		153,376
Common stock issued to Cavium common stockholders	3,273,053	$ 307	3,272,746
Stock consideration for Cavium accelerated awards (in shares)		1,102
Stock consideration for Cavium accelerated awards	7,804	$ 2	7,802
Equity related issuance cost	(2,927)		(2,927)
Replacement equity awards attributable to pre-acquisition service	$ 50,485		50,485
Repurchase of common stock (in shares)	(6,041)	(6,041)
Repurchase of common stock	$ (103,974)	$ (12)	(103,962)
Cash dividends declared and paid (cumulatively $0.24 per share)	(148,081)				(148,081)
Net income (loss)	(179,094)				(179,094)
Other Comprehensive income (loss)	2,322			2,322
Balance at end of period (in shares) at Feb. 02, 2019		658,514
Balance at end of period at Feb. 02, 2019	7,306,410	$ 1,317	6,188,598	0	1,116,495
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of ordinary shares in connection with equity incentive plans (in shares)		19,453
Issuance of ordinary shares in connection with equity incentive plans	147,053	$ 40	147,013
Tax withholdings related to net share settlement of restricted stock units	(98,293)		(98,293)
Share-based compensation	243,937		243,937
Adjustments to Additional Paid in Capital, Warrant Issued	3,407		3,407
Replacement equity awards attributable to pre-acquisition service	$ 15,520		15,520
Repurchase of common stock (in shares)	(14,486)	(14,486)
Repurchase of common stock	$ (364,272)	$ (29)	(364,243)
Cash dividends declared and paid (cumulatively $0.24 per share)	(159,573)				(159,573)
Net income (loss)	1,584,391				1,584,391
Other Comprehensive income (loss)	0
Balance at end of period (in shares) at Feb. 01, 2020		663,481
Balance at end of period at Feb. 01, 2020	$ 8,678,580	$ 1,328	$ 6,135,939	$ 0	$ 2,541,313

CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (Parenthetical) - $ / shares	12 Months Ended
	Feb. 01, 2020	Feb. 02, 2019	Feb. 03, 2018
Statement of Stockholders' Equity [Abstract]
Cash dividends declared (in usd per share)	$ 0.24	$ 0.24	$ 0.24
Cash dividends paid (in usd per share)	$ 0.24	$ 0.24	$ 0.24

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Feb. 01, 2020	Feb. 02, 2019	Feb. 03, 2018
Cash flows from operating activities:
Net income (loss)	$ 1,584,391	$ (179,094)	$ 520,831
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization	156,658	123,983	83,487
Share-based compensation	242,207	184,064	86,689
Amortization of acquired intangible assets	368,082	183,318	3,570
Amortization of inventory fair value adjustment associated with acquisitions	55,826	223,372	0
Amortization of deferred debt issuance costs and debt discounts	6,763	11,354	0
Restructuring related impairment charges (gain)	17,571	(200)	(4,561)
Deferred income taxes	(785,158)	118,647	19,825
Loss (gain) on sale of business and discontinued operations	(1,121,709)	1,592	(93,660)
Other expense (income), net	26,448	4,154	(925)
Changes in assets and liabilities:
Accounts receivable	11,244	(99,044)	54,989
Inventories	12,759	4,348	(12,160)
Prepaid expenses and other assets	(54,138)	(11,685)	12,494
Accounts payable	1,658	(6,493)	(16,613)
Accrued liabilities and other non-current liabilities	(182,893)	85,027	(70,917)
Accrued employee compensation	20,588	(46,599)	(11,936)
Net cash provided by operating activities	360,297	596,744	571,113
Cash flows from investing activities:
Purchases of available-for-sale securities	0	(14,956)	(835,494)
Sales of available-for-sale securities	18,832	623,896	306,822
Maturities of available-for-sale securities	0	187,985	426,341
Purchases of time deposits	0	(25,000)	(300,000)
Maturities of time deposits	0	175,000	300,000
Purchases of technology licenses	(4,712)	(11,540)	(6,587)
Purchases of property and equipment	(81,921)	(75,921)	(38,551)
Proceeds from sales of property and equipment	620	43,525	12,559
Cash payment for acquisitions, net of cash and cash equivalents acquired	(1,071,079)	(2,649,465)	0
Net proceeds from sale of discontinued operations	0	0	165,940
Net proceeds from sale of business	1,698,783	(3,352)	2,402
Other, net	(1,677)	(2,725)	6,089
Net cash provided by (used in) investing activities	558,846	(1,752,553)	39,521
Cash flows from financing activities:
Repurchases of common stock	(364,272)	(103,974)	(527,574)
Proceeds from employee stock plans	147,276	100,961	180,302
Tax withholding paid on behalf of employees for net share settlement	(98,302)	(54,939)	(26,840)
Dividend payments to shareholders	(159,573)	(148,081)	(119,251)
Payments on technology license obligations	(72,266)	(69,157)	(28,503)
Proceeds from issuance of debt	950,000	1,892,605	0
Principal payments of debt	(1,250,000)	(756,128)	0
Payment of equity and debt financing costs	0	(11,550)	(14,378)
Other, net	(6,812)	0	0
Net cash provided by (used in) in financing activities	(853,949)	849,737	(536,244)
Net increase (decrease) in cash and cash equivalents	65,194	(306,072)	74,390
Cash and cash equivalents at beginning of the year	582,410	888,482	814,092
Cash and cash equivalents at end of the year	$ 647,604	$ 582,410	$ 888,482

Basis of Presentation	12 Months Ended
Basis of Presentation	Feb. 01, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Basis of Presentation The Company Marvell Technology Group Ltd., a Bermuda exempted company, and its subsidiaries (the “Company”), is a fabless semiconductor provider of high-performance application-specific standard products. The Company’s core strength is the development of complex System-on-a-Chip devices, leveraging its extensive technology portfolio of intellectual property in the areas of analog, mixed-signal, digital signal processing, and embedded and standalone integrated circuits. The Company also develops platforms that it defines as integrated hardware along with software that incorporates digital computing technologies designed and configured to provide an optimized computing solution. The Company’s broad product portfolio includes devices for storage and networking. Basis of Presentation The Company’s fiscal year is the 52- or 53-week period ending on the Saturday closest to January 31. Accordingly, every fifth or sixth fiscal year will have a 53-week period. The additional week in a 53-week year is added to the fourth quarter, making such quarter consist of 14 weeks. Fiscal 2020 and fiscal 2019 each had a 52-week period, while fiscal 2018 had a 53-week period. Certain prior period amounts have been reclassified to conform to current year presentation. On September 19, 2019, the Company completed the acquisition of Aquantia. On November 5, 2019, the Company completed the acquisition of Avera, the Application Specific Integrated Circuit (“ASIC”) business of GlobalFoundries. See “Note 3 - Business Combinations” for additional information. On December 6, 2019, the Company completed the divestiture of the Wi-Fi Connectivity business to NXP USA, Inc, a subsidiary of NXP Semiconductors (“NXP”). Based on the terms of the agreement, the Company received sale consideration of $1.7 billion in cash proceeds. The divestiture resulted in a pre-tax gain on sale of $1.1 billion, which is included in other income, net in the Consolidated Statements of Operations for the year ended February 1, 2020. On December 31, 2019, the Company completed an intra-entity transfer of the majority of its intellectual property to a subsidiary in Singapore. The transfer aligns the global economic ownership of the Company's intellectual property rights with its current and future business operations. The income tax benefit of $763.0 million in fiscal 2020 is primarily due to the recognition of a deferred tax asset of $659.0 million from the Singapore tax basis in the intellectual property. In addition, the Company recognized $104.0 million of income tax benefit from the reversal of deferred tax liabilities primarily related to previously acquired intangible assets. See “Note 16 - Income Taxes” for additional information.

Significant Accounting Policies

12 Months Ended

Feb. 01, 2020

Accounting Policies [Abstract]

Significant Accounting Policies

Use of Estimates

The preparation of consolidated financial statements in conformity with accounting principles generally accepted in the United States (“GAAP”) requires management to make estimates, judgments and assumptions that affect the reported amounts of assets, liabilities, revenues and expenses, and related disclosure of contingent liabilities. On an ongoing basis, the Company evaluates its estimates, including those related to performance-based compensation, revenue recognition, provisions for sales returns and allowances, inventory excess and obsolescence, investment fair values, goodwill and other intangible assets, restructuring, income taxes, litigation and other contingencies. Actual results could differ from these estimates, and such differences could affect the results of operations reported in future periods.

Principles of Consolidation

The consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries. All inter-company accounts and transactions have been eliminated. The functional currency of the Company and its subsidiaries is the U.S. dollar.

Discontinued Operations

In connection with the plan the Company announced in November 2016 to restructure its operations to refocus its research and development, increase operational efficiency and improve profitability, the Company also planned to divest certain businesses. As of February 1, 2020, three businesses were divested and are classified as discontinued operations (see “Note 5 - Discontinued Operations”). The Company has not segregated the cash flows of these businesses in the consolidated statements of cash flows. Unless noted otherwise, discussion in the Notes to Consolidated Financial Statements refers to the Company’s continuing operations.

Cash and Cash Equivalents

The Company considers all highly liquid investments with an original maturity of three months or less from the date of purchase to be cash equivalents. Cash and cash equivalents consist of cash on deposit with banks and time deposits.

Investments

The Company classifies debt securities as available-for-sale and reports such investments at fair value. The Company determines any realized gains or losses on the sale of available-for-sale securities on a specific identification method, and such gains and losses are recorded as a component of interest and other income (loss), net. Unrealized gains and losses of the available-for-sale securities are excluded from earnings and reported as a component of accumulated other comprehensive income. Time deposits with maturities greater than 90 days, but less than one year, are classified in short-term investments as held-to-maturity since the Company has both the intent and ability to hold them to maturity.

In general, investments with original maturities of greater than 90 days and remaining maturities of less than one year are classified as short-term investments. Investments with maturities beyond one year may also be classified as short-term based on their highly liquid nature and can be sold to fund current operations.

The Company also has equity investments in privately-held companies. If the Company has the ability to exercise significant influence over the investee, but not control, the Company accounts for the investment under the equity method. If the Company does not have the ability to exercise significant influence over the operations of the investee, the Company accounts for the investment under the measurement alternative method. Investments in privately-held companies are included in other non-current assets.

Impairment of Investments

The Company performs a periodic review of its available-for-sale securities to determine whether an other-than-temporary impairment has occurred. Generally, for an individual security that has been in an unrealized loss position for an extended period of time, the Company evaluates whether an impairment charge should be recognized. Its evaluation is based on specific facts and circumstances at the time of assessment, including general market conditions, and the duration and extent to which the fair value is below cost. If the fair value of a debt security is less than its amortized cost, then an other-than-temporary impairment for the difference is recognized if:

•the Company has the intent to sell the security;

•it is more likely than not that the Company will be required to sell the security before recovery of its amortized cost base; or

•a credit loss exists insofar as the Company does not expect to recover the entire recognized amortized cost of the security.

If a debt security’s market value is below amortized cost and the Company either intends to sell the security or it is more likely than not that the Company will be required to sell the security before its anticipated recovery, the Company records an other-than-temporary impairment charge to interest and other income (loss), net in the consolidated statements of operations.

Investments in privately-held companies are subject to a periodic impairment review. Investments are considered impaired when the fair value is below the investment’s cost basis. This assessment is based on a qualitative and quantitative analysis, including, but not limited to, the investee’s revenue and earnings trends, available cash and liquidity, and the status of the investee’s products and the related market for such products.

Concentration of Credit Risk and Significant Customers

Financial instruments that potentially subject the Company to a significant concentration of credit risk consist principally of cash equivalents and accounts receivable. Cash and cash equivalents are maintained with high-quality financial institutions, the composition and maturities of which are regularly monitored by management. The Company believes that the concentration of credit risk in its trade receivables is substantially mitigated by the Company’s credit evaluation process, relatively short collection terms and the high level of credit worthiness of its customers. The Company performs ongoing credit evaluations of its customers’ financial conditions and limits the amount of credit extended when deemed necessary based upon payment history and the customer’s current credit worthiness, but generally requires no collateral. The Company regularly reviews the allowance for bad debt and doubtful accounts by considering factors such as historical experience, credit quality, age of the accounts receivable balances and current economic conditions that may affect a customer’s ability to pay.

The Company’s accounts receivable was concentrated with four customers at February 1, 2020, who comprise a total of 38% of gross accounts receivable, compared with four customers at February 2, 2019, who represented 39% of gross accounts receivable, respectively. This presentation is at the customer consolidated level.

Historically, a relatively small number of customers have accounted for a significant portion of our net revenue. During fiscal 2020, there was no net revenue attributable to one customer, other than one distributor, whose revenue was 10% or greater of total net revenues. Net revenue attributable to significant customers whose revenues as a percentage of net revenue was 10% or greater of total net revenues is presented in the following table:


	Year Ended
	February 1, 2020		February 2, 2019		February 3, 2018
Customer:

Western Digital	*		12	%	20	%
Toshiba **	*		11	%	14	%
Seagate	*		10	%	11	%
Distributor:
Wintech	12	%	*		10	%

* Less than 10% of net ** The percentage of net revenue reported for Toshiba for fiscal year 2019 excludes net revenue of Toshiba Memory Corporation after Toshiba divested Toshiba Memory Corporation during fiscal year 2019.

The Company continuously monitors the creditworthiness of its distributors and believes these distributors’ sales to diverse end customers and to diverse geographies further serve to mitigate the Company’s exposure to credit risk.

Inventories

Inventory is stated at the lower of cost or net realizable value, cost being determined under the first-in, first-out method. The total carrying value of the Company’s inventory is reduced for any difference between cost and estimated net realizable value of inventory that is determined to be excess, obsolete or unsellable inventory based upon assumptions about future demand and market conditions. If actual future demand for the Company’s products is less than currently forecasted, the Company may be required to write inventory down below the current carrying value. Once the carrying value of inventory is reduced, it is maintained until the product to which it relates to is sold or otherwise disposed of. Inventoriable shipping and handling costs are classified as a component of cost of goods sold in the consolidated statements of operations.

Property and Equipment, Net

Property and equipment, net, are stated at cost less accumulated depreciation. Depreciation is computed using the straight-line method over the estimated useful lives of the assets, which ranges from 2 to 7 years for machinery and equipment, and 3 to 4 years for computer software, and furniture and fixtures. Buildings are depreciated over an estimated useful life of 30 years and building improvements are depreciated over estimated useful lives of 15 years. Leasehold improvements are depreciated over the shorter of the remaining lease term or the estimated useful life of the asset.

Goodwill

Goodwill is recorded when the consideration paid for a business acquisition exceeds the fair value of net tangible and intangible assets acquired. Goodwill is measured and tested for impairment annually on the last business day of the fiscal fourth quarter and whenever events or changes in circumstances indicate the carrying amount of goodwill may not be recoverable. The Company first assesses qualitative factors to determine whether it is more likely than not that the fair value of a reporting unit is less than its carrying amount or the Company may determine to proceed directly to the quantitative impairment test.

If the Company assesses qualitative factors and concludes that it is more likely than not that the fair value of a reporting unit is less than its carrying amount or if the Company determines not to use the qualitative assessment, then a quantitative impairment test is performed. The quantitative impairment test requires comparing the fair value of the reporting unit to its carrying value, including goodwill. The Company has identified that its business operates as a single operating segment with two components (Storage and Networking), which it has concluded can be aggregated into a single reporting unit for purposes of testing goodwill impairment. An impairment exists if the fair value of the reporting unit is lower than its carrying value. If the fair value of the reporting unit is lower than its carrying value, the Company would record an impairment loss in the fiscal quarter in which the determination is made.

Long-Lived Assets and Intangible Assets

The Company assesses the impairment of long-lived assets and intangible assets whenever events or changes in circumstances indicate that the carrying amount of long-lived assets may not be recoverable. The Company estimates the future cash flows, undiscounted and without interest charges, expected to be generated by the assets from its use or eventual disposition. If the sum of the expected undiscounted future cash flows is less than the carrying amount of those assets, the Company recognizes an impairment loss based on the excess of the carrying amount over the fair value of the assets. Please see “Note 4 - Goodwill and Acquired Intangible Assets, Net” for further details regarding impairment of acquisition-related identified intangible assets.

Acquisition-related identified intangible assets are amortized on a straight-line basis over their estimated economic lives, except for certain customer contracts and related relationships, which are amortized using an accelerated method of amortization over the expected customer lives. In-process research and development (“IPR&D”) is not amortized until the completion of the related development.

Leases

The Company determines if an arrangement is a lease at inception. Operating lease right-of-use (“ROU”) assets and liabilities are recognized at commencement date based on the present value of lease payments over the lease term. Operating lease ROU assets also include any initial direct costs and prepayments less lease incentives. Lease terms may include options to extend or terminate the lease when it is reasonably certain that the Company will exercise such options. As the Company's leases do not provide an implicit rate, the Company uses its collateralized incremental borrowing rate based on the information available at the lease commencement date, including lease term, in determining the present value of lease payments. Lease expense for these leases is recognized on a straight line basis over the lease term.

Foreign Currency Transactions

The functional currency of all of the Company’s non-United States (“U.S.”) operations is the U.S. dollar. Monetary accounts maintained in currencies other than the U.S. dollar are re-measured using the foreign exchange rate at the balance sheet date. Operational accounts and nonmonetary balance sheet accounts are measured and recorded at the exchange rate in effect at the date of the transaction. The effects of foreign currency re-measurement are reported in current operations.

Revenue Recognition

Prior to February 4, 2018, the Company recognized revenue in accordance with ASC 605. As a result of the adoption of the new revenue standard on February 4, 2018, at the beginning of the first quarter of fiscal year 2019, the Company revised its revenue recognition policy.

Product revenue is recognized at a point in time when control of the asset is transferred to the customer. Substantially all of the Company's revenue is derived from product sales. The Company recognizes revenue when it satisfies a performance obligation by transferring control of a product to a customer in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. For product revenue, the performance obligation is deemed to be the delivery of the product and therefore, the revenue is generally recognized upon shipment to customers, net of accruals for estimated sales returns and rebates. These estimates are based on historical returns analysis and other known factors. The Company accounts for rebates by recording reductions to revenue for rebates in the same period that the related revenue is recorded. The amount of these reductions is based upon the terms agreed to with the customer. Product revenue on sales made to distributors with price protection, price discounts and stock rotation rights is recognized upon shipment to distributors, with an accrual for the variable consideration aspect of sales to distributors, estimated based on historical experience, including estimates for price discounts, price protection, rebates, and stock rotation programs.

A portion of the Company's net revenue is derived from sales through third-party logistics providers who maintain warehouses in close proximity to our customer’s facilities. Revenue from sales through these third-party logistics providers is not recognized until the product is pulled from stock by the customer.

The Company’s products are generally subject to warranty, which provides for the estimated future costs of replacement upon shipment of the product. The Company’s products carry a standard one-year warranty, with certain exceptions in which the warranty period can extend to more than one year based on contractual agreements. The warranty accrual is estimated primarily based on historical claims compared to historical revenues and assumes that the Company will have to replace products subject to a claim. From time to time, the Company becomes aware of specific warranty situations, and it records specific accruals to cover these exposures. Warranty expenses were not material for the periods presented.

Business Combinations

The Company allocates the fair value of the purchase consideration of its acquisitions to the tangible assets, liabilities, and intangible assets acquired, including IPR&D, based on their estimated fair values. The excess of the fair value of purchase consideration over the fair values of these identifiable assets and liabilities is recorded as goodwill. IPR&D is initially capitalized at fair value as an intangible asset with an indefinite life and assessed for impairment thereafter. When an IPR&D project is completed, the IPR&D is reclassified as an amortizable purchased intangible asset and amortized over the asset’s estimated useful life. Acquisition-related expenses and related restructuring costs are recognized separately from the business combination and are expensed as incurred.

Advertising Expense

Advertising costs are expensed as incurred. The Company recorded $0.8 million, $0.2 million and $0.2 million of advertising costs for fiscal 2020, 2019 and 2018, respectively, included in selling, general and administrative expenses in the consolidated statements of operations.

Share-Based Compensation

Share-based compensation is measured at the grant date, based on the fair value of the award, and is recognized as expense over the requisite service vesting period. The Company amortizes share-based compensation expense for time-based awards under the straight-line attribution method over the vesting period. Share-based compensation expense for performance-based awards is recognized when it becomes probable that the performance conditions will be met. The Company amortizes share-based compensation expense for performance-based awards using the accelerated method.

The fair value of each restricted stock unit is estimated based on the market price of the Company’s common shares on the date of grant less the expected dividend yield.

The Company estimates the fair value of stock purchase awards on the date of grant using the Black Scholes option-pricing model. The fair value of performance-based awards based on total shareholder return (“TSR”) and value creation (“VCA”) awards are estimated on the date of grant using a Monte Carlo simulation model.

Forfeitures are recorded when they occur. Previously recognized expense is reversed for the portion of awards forfeited prior to vesting as and when forfeitures occur.

Comprehensive Income (Loss)

Comprehensive income (loss), net of tax is comprised of net income and net change in unrealized gains and losses, on available-for-sale securities and cash flow hedges.

Accounting for Income Taxes

The Company estimates its income taxes in each of the jurisdictions in which it operates. This process involves estimating the Company's actual tax exposure together with assessing temporary differences resulting from the differing treatment of certain items for tax return and financial statement purposes. These differences result in deferred tax assets and liabilities, which are included in the Company's consolidated balance sheets.

The Company recognizes income taxes using an asset and liability approach. This approach requires the recognition of taxes payable or refundable for the current year, and deferred tax liabilities and assets for the future tax consequences of events that have been recognized in the Company's consolidated financial statements or tax returns. The measurement of current and deferred taxes is based on provisions of the enacted tax law and the effects of future changes in tax laws or rates are not anticipated.

Evaluating the need for an amount of a valuation allowance for deferred tax assets often requires judgment and analysis of all the positive and negative evidence available, including cumulative losses in recent years and projected future taxable income, to determine whether all or some portion of the deferred tax assets will not be realized. Using available evidence and judgment, the Company establishes a valuation allowance for deferred tax assets, when it is determined that it is more likely than not that they will not be realized. Valuation allowances have been provided primarily against the U.S. research and development credits. Valuation allowances have also been provided against certain acquired operating losses and the deferred tax assets of foreign subsidiaries. A change in the assessment of the realization of deferred tax assets may materially impact the Company's tax provision in the period in which a change of assessment occurs.

As a multinational corporation, the Company conducts its business in many countries and is subject to taxation in many jurisdictions. The taxation of the business is subject to the application of various and sometimes conflicting tax laws and regulations as well as multinational tax conventions. The Company's effective tax rate is highly dependent upon the geographic distribution of the Company's worldwide earnings or losses, the tax regulations and tax holidays in each geographic region, the availability of tax credits and carryforwards, and the effectiveness of the Company's tax planning strategies which includes its estimates of the fair value of its intellectual property. The application of tax laws and regulations is subject to legal and factual interpretation, judgment and uncertainty. Tax laws themselves are subject to change as a result of changes in fiscal policy, changes in legislation, and the evolution of regulations and court rulings. Consequently, taxing authorities may impose tax assessments or judgments against us that could materially impact the Company's tax liability and/or effective income tax rate.

The Company is subject to income tax audits by the respective tax authorities in all of the jurisdictions in which it operates. The Company recognizes the effect of income tax positions only if these positions are more likely than not of being sustained. Recognized income tax positions are measured at the largest amount that is more than 50% likely of being realized. Changes in recognition or measurement are reflected in the period in which the change in judgment occurs. The Company records interest and penalties related to unrecognized tax benefits in income tax expense. The calculation of the Company's tax liabilities involves the inherent uncertainty associated with complex tax laws. The Company believes it has adequately provided for in its financial statements additional taxes that it estimates may be required to be paid as a result of such examinations. While the Company believes that it has adequately provided for all tax positions, amounts asserted by tax authorities could be greater or less than its accrued position. These tax liabilities, including the interest and penalties, are released pursuant to a settlement with tax authorities, completion of audit or expiration of various statutes of limitation. The material jurisdictions in which the Company may be subject to potential examination by tax authorities throughout the world include China, India, Israel, Singapore, Switzerland and the United States.

The recognition and measurement of current taxes payable or refundable, and deferred tax assets and liabilities require that the Company make certain estimates and judgments. Changes to these estimates or a change in judgment may have a material impact on the Company's tax provision in a future period.

Recent Accounting Pronouncements

Accounting Pronouncements Recently Adopted

In February 2016, the FASB issued a new standard on the accounting for leases, which amends the existing guidance to require lessees to recognize assets and liabilities on the balance sheet for the rights and obligation created by long-term leases and to disclose additional quantitative and qualitative information about leasing arrangements. The Company adopted the new lease accounting standard on February 3, 2019, using the modified retrospective approach by applying the new standard to leases existing at the date of initial application and not restating comparative periods. See “Note 7 - Leases” for additional information.

Accounting Pronouncements Not Yet Effective

In June 2016, the FASB issued a new standard requiring financial assets measured at amortized cost be presented at the net amount expected to be collected, through an allowance for credit losses that is deducted from the amortized cost basis. The standard eliminates the threshold for initial recognition in current GAAP and reflects an entity’s current estimate of all expected credit losses. The measurement of expected credit losses is based on historical experience, current conditions, and reasonable and supportable forecasts that affect the collectability of the financial assets. The standard is effective for the Company beginning in the first quarter of fiscal year 2021. The adoption of this guidance did not have a material effect on the Company's consolidated financial statements.

In August 2018, the FASB issued an accounting standards update to align the requirements for capitalizing implementation costs incurred in a software hosting arrangement that is a service contract and costs to develop or obtain internal-use software. The guidance is effective for the Company beginning in the first quarter of fiscal year 2021, with early adoption permitted. The adoption of this guidance did not have an effect on the Company's consolidated financial statements.

In August 2018, the FASB issued an accounting standards update that modifies the disclosure requirements on fair value measurements. The new guidance adds, modifies and removes certain fair value measurement disclosure requirements. The guidance is effective for the Company beginning in the first quarter of fiscal year 2021, with early adoption permitted. The adoption of this guidance did not have a material effect on the Company's consolidated financial statements.

In November 2018, the FASB issued an accounting standards update that clarifies when transactions between participants in a collaborative arrangement are within the scope of the new revenue recognition standard that the Company adopted at the beginning of fiscal 2019. The guidance is effective for the Company beginning in the first quarter of fiscal year 2021, with early adoption permitted. The guidance must be applied retrospectively as of the date of initial application of the revenue recognition standard. In addition, entities may elect to apply the guidance to all collaborative arrangements or only to collaborative arrangements that are not completed as of the date of initial application of the aforementioned revenue recognition standard. The adoption of this guidance did not have an effect on the Company's consolidated financial statements. In December 2019, the FASB issued an accounting standards update that simplifies the accounting for income taxes by eliminating certain exceptions related to the approach for intraperiod tax allocation and modified the methodology for calculating income taxes in an interim period. It also clarifies and simplifies other aspects of the accounting for income taxes. The guidance is effective for the Company beginning in the first quarter of fiscal year 2022, with early adoption permitted. The Company is evaluating the effect this new guidance will have on its consolidated financial statements.

Business Combinations

12 Months Ended

Feb. 01, 2020

Business Combinations [Abstract]

Business Combinations

Avera

On November 5, 2019, the Company completed the acquisition of Avera, the ASIC business of GlobalFoundries. Avera is a leading provider of ASIC semiconductor solutions. The Company acquired Avera to expand its ASIC design capabilities. Total purchase consideration consisted of cash consideration paid to GlobalFoundries of $593.5 million, net of working capital and other adjustments. The purchase consideration was funded with new debt financing. See “Note 12 - Debt” for additional information. An additional $90 million in cash will be paid to acquire additional assets if certain conditions are satisfied within the next 10 months.

The purchase consideration allocation set forth herein is preliminary and may be revised as additional information becomes available during the measurement period of up to 12 months from the closing date of the acquisition. Any such revisions or changes may be material.

The factors contributing to the recognition of goodwill were based upon the Company's conclusion that there are strategic and synergistic benefits that are expected to be realized from the acquisition. A portion of the goodwill recorded for the Avera acquisition is deductible for tax purposes.

The purchase price allocation is as follows (in thousands):


Inventories	$	106,465
Prepaid expenses and other current assets	17,495
Property and equipment, net	25,677
Acquired intangible assets, net	379,000
Other non-current assets	6,870
Goodwill	129,392
Accrued liabilities	(64,155)
Deferred tax liabilities	(6,594)
Other non-current liabilities	(650)
	$	593,500

The Company incurred total acquisition related costs of $5.7 million which were recorded in selling, general and administrative expense in the Consolidated Statements of Operations.

Aquantia Corp.

On September 19, 2019, the Company completed the acquisition of Aquantia. Aquantia is a manufacturer of high-speed transceivers which includes copper and optical physical layer products. The Company acquired Aquantia to further its position in automotive in-vehicle networking and strengthen its multi-gig ethernet PHY portfolio for enterprise infrastructure, data center and access applications. In accordance with the terms of the Agreement and Plan of Merger dated May 6, 2019, by and among the Company and Aquantia (the “Aquantia merger agreement”), the Company acquired all outstanding shares of common stock of Aquantia (the “Aquantia shares”) for $13.25 per share in cash. The merger consideration was funded with a combination of cash on hand and funds from the Company's revolving line of credit (“Revolving Credit Facility”). See “Note 12 - Debt” for additional information.

The following table summarizes the total merger consideration (in thousands):


Cash consideration to Aquantia common stockholders	$	479,547
Cash consideration - director, employee & consultant grant accelerations and payout for employee stock purchase plan	7,122
Stock consideration for replacement equity awards attributable to pre-combination service	15,520
Total merger consideration	$	502,189

The merger consideration allocation set forth herein is preliminary and may be revised with adjustment to goodwill as additional information becomes available during the measurement period of up to 12 months from the closing date of the acquisition to finalize such preliminary estimates. Any such revisions or changes may be material.

The factors contributing to the recognition of goodwill were based upon the Company's conclusion that there are strategic and synergistic benefits that are expected to be realized from the acquisition. Goodwill recorded for the Aquantia acquisition is not expected to be deductible for tax purposes.

The purchase price allocation is as follows (in thousands):



Cash and short-term investments	$	27,914
Inventory	33,900
Goodwill	227,594
Acquired intangible assets	193,000
Other non-current assets	35,123
Accrued liabilities	(21,813)
Other, net	6,471
	$	502,189

The Company incurred total acquisition related costs of $5.3 million which were recorded in selling, general and administrative expense in the unaudited condensed consolidated statements of operations.

Cavium Inc

On July 6, 2018, the Company completed the acquisition of Cavium (the “Cavium acquisition”). Cavium is a provider of highly integrated semiconductor processors that enable intelligent processing for wired and wireless infrastructure and cloud for networking, communications, storage and security applications. The Cavium acquisition was primarily intended to create an opportunity for the combined company to emerge as a leader in infrastructure solutions. In accordance with the terms of the Agreement and Plan of Merger, dated as of November 19, 2017, by and among the Company and Cavium (the “Cavium merger agreement”), the Company acquired all outstanding shares of common stock of Cavium (the “Cavium shares”) for $40.00 per share in cash and 2.1757 shares of the Company's common stock exchanged for each share of Cavium stock. The Company also made cash payments for the fractional shares that resulted from conversion as specified in the Cavium merger agreement. The merger consideration was funded with a combination of cash on hand, new debt financing and issuance of the Company’s common shares. See “Note 12 - Debt” for discussion of the debt financing.

The following table summarizes the total merger consideration (in thousands, except share and per share data):


Cash consideration to Cavium common stockholders	$	2,819,812
Common stock (153,376,408 shares of the Company's common stock at $21.34 per share)	3,273,053
Cash consideration for intrinsic value of vested director stock options and employee accelerated awards attributable to pre-acquisition service	10,642
Stock consideration for employee accelerated awards attributable to pre-acquisition service	7,804
Fair value of the replacement equity awards attributable to pre-acquisition service	50,485
Total merger consideration	$	6,161,796

The factors contributing to the recognition of goodwill were based upon the Company's conclusion that there are strategic and synergistic benefits that are expected to be realized from the acquisition. Goodwill of $3.5 billion recorded for the Cavium acquisition is not expected to be deductible for tax purposes.

The purchase price allocation is as follows (in thousands):


Cash and cash equivalents	$	180,989
Accounts receivable	112,270
Inventories	330,778
Prepaid expense and other current assets	19,890
Assets held for sale	483
Property and equipment	115,428
Acquired intangible assets	2,744,000
Other non-current assets	89,139
Goodwill	3,498,196
Accounts payable	(52,383)
Accrued liabilities	(126,007)
Accrued employee compensation	(34,813)
Deferred income	(2,466)
Current portion of long-term debt	(6,123)
Liabilities held for sale	(3,032)
Long-term debt	(600,005)
Non-current income taxes payable	(8,454)
Deferred tax liabilities	(79,995)
Other non-current liabilities	(16,099)
Total merger consideration	$	6,161,796

In fiscal year 2019, the Company incurred total acquisition related costs of $53.7 million which were recorded in selling, general and administrative expense in the consolidated statements of operations. The Company also incurred $22.8 million of debt financing costs. Additionally, the Company incurred $2.9 million of equity issuance costs, which were recorded in additional paid-in capital in the consolidated balance sheet.

Unaudited Supplemental Pro Forma Information

The unaudited supplemental pro forma financial information presented below is for illustrative purposes only and is not necessarily indicative of the financial position or results of operations that would have been realized if the acquisitions had been completed on the date indicated, does not reflect synergies that might have been achieved, nor is it indicative of future operating results or financial position. The pro forma adjustments are based upon currently available information and certain assumptions the Company believe are reasonable under the circumstances.

The following unaudited supplemental pro forma information presents the combined results of operations for each of the periods presented, as if Avera and Aquantia had been acquired as of the beginning of fiscal year 2019 and Cavium had been acquired as of the beginning of fiscal year 2018. The unaudited supplemental pro forma information includes adjustments to amortization and depreciation for acquired intangible assets and property and equipment, adjustments to share-based compensation expense, the purchase accounting effect on inventories acquired, interest expense, and transaction costs. For fiscal year 2019, nonrecurring pro forma adjustments directly attributable to the Avera and Aquantia acquisitions included (i) the purchase accounting effect of inventories acquired of $73.1 million for Avera and Aquantia (ii) transaction costs of $18.6 million for Avera and Aquantia and (iii) share-based compensation expense of $3.5 million for Aquantia. The unaudited supplemental pro forma information presented below is for informational purposes only and is not necessarily indicative of our consolidated results of operations of the combined business had the Avera and Aquantia acquisitions actually occurred at the beginning of fiscal year 2019 and the Cavium acquisition actually occurred at the beginning of fiscal year 2018 or of the results of our future operations of the combined business.

The unaudited supplemental pro forma financial information for the periods presented is as follows (in thousands):


	Year Ended
	February 1, 2020		February 2, 2019
Pro forma net revenue	$	3,011,550	$	3,638,086
Pro forma net income	$	1,532,594	$	(334,133)

Goodwill and Acquired Intangible Assets, Net

12 Months Ended

Feb. 01, 2020

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill and Acquired Intangible Assets, Net

Goodwill

Goodwill represents the excess of the purchase price over the fair value of the net tangible and identifiable intangible assets acquired in a business combination. In connection with the completion of the Wi-Fi business divestiture on December 6, 2019, the Company allocated goodwill of $511.1 million on a relative fair value basis to the divested business. See “Note 1 - Basis of Presentation” for further discussion of the divestiture. In connection with the Aquantia and Avera acquisitions on September 19, 2019 and November 5, 2019, respectively, the Company recorded goodwill of $357.0 million. In connection with the Cavium acquisition on July 6, 2018, the Company recorded goodwill of $3.5 billion during fiscal 2019 and reduced goodwill by $3.0 million during fiscal 2020 in connection with measurement period adjustments, which were primarily related to changes in estimates related to finalizing Cavium’s 2018 U.S. tax return. See “Note 3 - Business Combinations” for further discussion of the acquisitions.

The Company has identified that its business operates as a single operating segment with two components that it has concluded can be aggregated into a single reporting unit. The Company’s annual test for goodwill impairment as of the last day of the fourth quarter of fiscal 2020 did not result in any impairment charge.

There was no activity from acquisitions or divestitures recorded to goodwill in fiscal 2020 and 2019 other than those described above.

Acquired Intangible Assets, Net

During the year ended February 1, 2020 the Company acquired $572.0 million of intangible assets associated with the Aquantia and Avera acquisitions as follows (in thousands, except for weighted-average useful life as of acquisition date):


	Preliminary Estimated Fair Value		Weighted-Average Useful Life (Years)
Developed technology	$	353,000	5.58
IPR&D	41,000		7.39
Customer contracts and related relationships	178,000		5.21

	$	572,000

As of February 1, 2020, net carrying amounts are as follows (in thousands, except for weighted-average remaining amortization period):


	February 1, 2020
	Gross Carrying Amounts		Accumulated Amortization and Write-Offs		Net Carrying Amounts		Weighted -average remaining amortization period (years)
Developed technologies	$	2,511,000	$	(413,735)	$	2,097,265	6.41
Customer contracts and related relationships	643,000		(128,939)		514,061		6.61
Trade names	23,000		(8,726)		14,274		2.96
Total acquired amortizable intangible assets	3,177,000		(551,400)		2,625,600		6.43
IPR&D	139,000		—		139,000		n/a
Total acquired intangible assets	$	3,316,000	$	(551,400)	$	2,764,600

During the year ended February 2, 2019, in connection with the Cavium acquisition, the Company acquired $2.7 billion of intangible assets. As of February 2, 2019, net carrying amounts are as follows (in thousands, except for weighted-average remaining amortization period):


	February 2, 2019
	Gross Carrying Amounts		Accumulated Amortization and Write-Offs		Net Carrying Amounts		Weighted-average remaining amortization period (years)
Developed technologies	$	1,743,000	$	(134,167)	$	1,608,833	7.10
Customer contracts and related relationships	465,000		(45,939)		419,061		8.42
Trade names	23,000		(3,212)		19,788		3.85
Total acquired amortizable intangible assets	2,231,000		(183,318)		2,047,682		7.34
IPR&D	513,000		—		513,000		n/a
Total acquired intangible assets	$	2,744,000	$	(183,318)	$	2,560,682

The intangible assets are amortized on a straight-line basis over the estimated useful lives, except for certain Cavium customer contracts and related relationships, which are amortized using an accelerated method of amortization over the expected customer lives in order to more closely align with the pattern of realization of economic benefits expected to be obtained. The IPR&D will be accounted for as an indefinite-lived intangible asset and will not be amortized until the underlying projects reach technological feasibility and commercial production at which point the IPR&D will be amortized over the estimated useful life. Useful lives for these IPR&D projects are expected to range between 3 to 10 years. In the event the IPR&D is abandoned, the related assets will be written off.

Amortization for acquired intangible assets was $368.1 million, $183.3 million and $3.6 million during the years ended February 1, 2020, February 2, 2019 and February 3, 2018 respectively. The following table presents the estimated future amortization expense of acquired amortizable intangible assets as of February 1, 2020 (in thousands):


Fiscal Year	Amount

2021	$	451,686
2022	441,969
2023	428,891
2024	399,920
2025	354,012
Thereafter	549,122
	$	2,625,600

Discontinued Operations

12 Months Ended

Feb. 01, 2020

Discontinued Operations and Disposal Groups [Abstract]

Discontinued Operations

In November 2016, the Company announced a plan to restructure its operations to refocus its research and development, increase operational efficiency and improve profitability. As part of these actions, the Company began an active program to locate buyers for several businesses. The Company concluded that the divestitures of these businesses in the aggregate represented a strategic shift that had a major effect on the Company’s operations and financial results. These businesses were deemed not to align with the Company’s core business. The Company classified these businesses as discontinued operations for all periods presented in its consolidated financial statements.

In February 2017, the Company entered into an agreement to sell the assets of one of these businesses, the Broadband operations. The transaction closed on April 4, 2017. Based on the terms of the agreement, the Company received sale consideration of $23.0 million in cash proceeds. The divestiture resulted in a pre-tax gain on sale of $8.2 million, which is included in income from discontinued operations in the consolidated statements of operations.

In May 2017, the Company sold the assets of a second business, the LTE thin-modem operations. The transaction closed on May 18, 2017. Based on the terms of the agreement, the Company received sale consideration of $52.9 million. The sale consideration included $3.6 million related to the Company's tax withholding liability paid by the buyer to tax authorities. The divestiture resulted in a pre-tax gain on sale of $34.0 million, which is included in income from discontinued operations in the consolidated statements of operations.

In June 2017, the Company entered into an agreement to sell the assets of a third business, the Multimedia operations. The transaction closed on September 8, 2017. Based on the terms of the agreement, the Company received sale consideration of $93.7 million in cash proceeds. The divestiture resulted in a pre-tax gain on sale of $46.2 million which is included in income from discontinued operations in the consolidated statements of operations.

There were no carrying amounts of assets and liabilities pertaining to discontinued operations in the consolidated balance sheet as of February 1, 2020 and February 2, 2019. There were no other assets held for sale as of February 1, 2020.

The following table presents a reconciliation of the major financial lines constituting the results of operations for discontinued operations to the net income (loss) from discontinued operations presented separately in the consolidated statements of operations (in thousands):


	Year Ended
		February 3, 2018
Net revenue		$	94,137
Cost of goods sold		47,499
Gross Profit		46,638
Operating expenses:
Research and development		34,530
Selling, general and administrative		6,925

Total operating expenses		41,455
Income from discontinued operations before income taxes		5,183
Gain from sale of discontinued operations		88,406
Provision for income taxes		5,900
Net income from discontinued operations		$	87,689

The Company had no discontinued operations for the years ended February 1, 2020 and February 2, 2019. Non-cash operating amounts reported for discontinued operations include share-based compensation expense of $1.6 million in fiscal 2018. Depreciation, amortization and capital expenditures are not material. The proceeds from sale of the Multimedia business of $93.7 million, proceeds from sale of the LTE thin-modem business of $49.2 million and proceeds from sale of the Broadband business of $23.0 million are classified in investing activities for fiscal 2018, and the gain on sale of such business is presented in operating activities in the consolidated statements of cash flows. Due to the Company's transfer pricing arrangements, the Company generates income in most jurisdictions in which it operates, regardless of a loss that may exist on a consolidated basis. In addition, the Company recognized a tax expense of $0.5 million on the sale of its Multimedia business for fiscal 2018, and a tax expense of $4.5 million on the sale of its LTE thin-modem business for fiscal 2018. As such, the Company has reflected a tax expense of $5.9 million for fiscal 2018, attributable to discontinued operations.

Restructuring and Other Related Charges

12 Months Ended

Feb. 01, 2020

Restructuring and Related Activities [Abstract]

Restructuring and Other Related Charges

The following table presents details related to the restructuring related charges as presented in the Consolidated Statements of Operations (in thousands):


	Year Ended
	February 1, 2020		February 2, 2019		February 3, 2018
Severance and related costs	$	31,685	$	40,345	$	8,247
Facilities and related costs	3,938		35,831		1,692
Other exit-related costs	3,621		2,050		2,082
	39,244		78,226		12,021
Release of reserves:
Severance	(480)		(1,273)		(1,612)
Facilities and related costs	(893)		—		(258)
Other exit-related costs	(138)		—		(340)

Impairment and write-off of assets & restructuring (gain):
Right-of-use asset amortization and impairment	18,356		—		—
Release of facility lease liability	(1,394)		—		—
Technology licenses	—		6,523		174
Equipment and other	633		5,503		(489)
Building sale	—		(12,226)		(4,246)
	$	55,328	$	76,753	$	5,250

Fiscal 2020. The Company recorded $55.3 million of restructuring and other related charges in connection with the acquisitions as described in “Note 3 - Business Combinations.” Following the acquisition of Avera, the Company reviewed its financial position and operating results against the Company's strategic objectives, long-term operating targets and other operational priorities and initiated a restructuring plan in an effort to increase operational efficiency, decrease costs and increase profitability. The charges include $15.4 million recorded in connection with the Avera acquisition and $39.9 million recorded in connection with the other acquisitions. The Company expects to complete these restructuring actions by the end of fiscal 2021.

The charges include approximately $31.2 million in severance and related costs, $18.4 million in right-of-use asset amortization and impairment costs associated with restructured facility leases, $3.5 million in other exit-related costs, $3.0 million in facilities and related costs, $0.6 million for the impairment of equipment and other, offset by a gain of $1.4 million from the release of facility lease liability. The severance costs primarily relate to the employee separation costs in connection with the acquisitions. The facility and related costs primarily relate to the remaining payments under lease obligations upon vacating certain worldwide office locations, and ongoing operating expenses of vacated facilities.

Fiscal 2019. The Company recorded $76.8 million of restructuring and other related charges in fiscal 2019 in connection with the Cavium acquisition as described in “Note 3 - Business Combinations.” The charges include approximately $39.1 million in severance and related costs, $35.8 million in facilities and related costs, $2.0 million in other exit-related costs, $12.0 million for the impairment of equipment and technology licenses, offset by a gain of $12.2 million from the sale of a building in Singapore.

Fiscal 2018. The Company recorded $5.3 million of restructuring and other related charges in fiscal 2018 in continuation of the restructuring plan announced in November 2016 as described in “Note 5 - Discontinued Operations”. As of February 2, 2019, the Company has completed its restructuring actions that were contemplated in the original November 2016 announcement. Total cumulative charges recorded related to this restructuring action were $95.6 million.

The following table sets forth a reconciliation of the beginning and ending restructuring liability balances by each major type of costs associated with the restructuring charges (in thousands):


	November 2016 and Other Restructuring										July 2018 Restructuring										November 2019 Restructuring
	Severance and related costs		Facilities and related costs		Other exit-related costs		Severance and related costs		Facilities and related costs		Other exit-related costs		Severance and related costs		Facilities and related costs		Other exit-related costs		Total












Balance at February 3, 2018	$	654	$	462	$	555	$	—	$	—	$	—	$	—	$	—	$	—	$	1,671
Restructuring charges	—		—		—		40,345		35,831		2,050		—		—		—		78,226
Net cash payments	(654)		(462)		(555)		(26,614)		(8,927)		(1,001)		—		—		—		(38,213)
Release of reserves	—		—		—		(1,273)		—		—		—		—		—		(1,273)
Exchange rate adjustment	—		—		—		(55)		—		—		—		—		—		(55)
Balance at February 2, 2019	—		—		—		12,403		26,904		1,049		—		—		—		40,356
Restructuring charges	—		—		—		16,698		3,713		3,429		14,987		225		192		39,244
Net cash payments	—		—		—		(27,706)		(3,374)		(3,804)		(2,674)		(29)		(181)		(37,768)
Release of reserve	—		—		—		(479)		(893)		(138)		(1)		—		—		(1,511)
Effect of adoption of new lease standard	—		—		—		—		(25,893)		—		—		—		—		(25,893)
Balance at February 1, 2020	—		—		—		916		457		536		12,312		196		11		14,428
Less: non-current portion	—		—		—		—		126		—		—		—		—		126
Current portion	$	—	$	—	$	—	$	916	$	331	$	536	$	12,312	$	196	$	11	$	14,302

Upon adoption of the new lease accounting standard (see “Note 7 - Leases”), certain restructuring liabilities were required to be recognized as a reduction of the ROU asset.

The balance at February 1, 2020 for facility and related costs includes remaining payments under lease obligations related to vacated space that are expected to be paid through fiscal 2023. The remaining accrued severance and related costs and the other exit-related costs are expected to be paid in fiscal 2021.

Leases

12 Months Ended

Feb. 01, 2020

Leases [Abstract]

Leases

Effect of the Adoption of the New Lease Standard

Effective February 3, 2019, the Company adopted the new lease accounting standard using the modified retrospective approach. The Company elected the package of practical expedients permitted under the transition guidance within the new standard, which among other things, allows the Company to carry forward the historical lease classification. The Company elected to apply the short-term lease measurement and recognition exemption in which ROU assets and lease liabilities are not recognized for short-term leases. Adoption of this standard resulted in the recording of net operating lease ROU assets and corresponding operating lease liabilities of $125 million and $149 million, respectively. The net ROU asset includes the effect of reclassifying a portion of facilities-related restructuring reserves as an offset in accordance with the transition guidance. The standard did not materially affect the condensed consolidated statements of operations and had no impact on cash flows.

The Company's leases include facility leases and data center leases, which are all classified as operating leases. For data center leases, the Company elected the practical expedient to account for the lease and non-lease component as a single lease component.

Lease expense and supplemental cash flow information are as follows (in thousands):


	Year Ended February 1, 2020
Operating lease expense	$	49,679
Cash paid for amounts included in the measurement of operating lease liabilities	$	33,161
Right-of-use assets obtained in exchange for lease obligation	$	28,928

The effect of operating lease right-of-use asset amortization of $20.4 million is included in changes in Other expense(income), net in the cash provided by operating activities section on the Statement of Cash Flows for the fiscal year ended February 1, 2020.

Supplemental balance sheet information related to leases are as follows (in thousands):


	Classification on the Condensed Consolidated Balance Sheet	February 1, 2020
Right-of-use assets	Other non-current assets	$	110,907

Current portion of lease liabilities	Accrued liabilities	28,662
Non-current portion of lease liabilities	Other non-current liabilities	115,778
Total lease liabilities		$	144,440

The aggregate future lease payments for operating leases as of February 1, 2020 are as follows (in thousands):


Fiscal Year	Operating Leases		Sublease Income
2021	$	35,272	$	(3,420)
2022	35,753		(3,253)
2023	28,932		(3,350)
2024	19,575		(3,451)
2025	12,791		(3,554)
Thereafter	34,015		(9,364)
Total lease payments	166,338		(26,392)
Less: imputed interest	21,898
Present value of lease liabilities	$	144,440

As previously disclosed in our Annual Report on Form 10-K for the year ended February 2, 2019 and under the previous lease accounting standard, the aggregate future non-cancelable minimum rental payments of our operating leases, as of February 2, 2019, are as follows (in thousands):


Fiscal Year	Operating Leases
2020	$	43,286
2021	29,866
2022	26,612
2023	21,272
2024	13,690
Thereafter	40,100
Total	$	174,826

Average lease terms and discount rates were as follows:


			Year Ended February 1, 2020
Weighted-average remaining lease term (years)			5.52
Weighted-average discount rate			3.85%

Revenue

12 Months Ended

Feb. 01, 2020

Revenue from Contract with Customer [Abstract]

Revenue

Disaggregation of Revenue

The majority of the Company's revenue is generated from sales of the Company’s products.

The following table summarizes net revenue disaggregated by product group (in thousands, except percentages):



	Year Ended February 1, 2020		% of Total		Year Ended February 2, 2019		% of Total		Year Ended February 3, 2018		% of Total
Net revenue by product group:
Networking (1)	$	1,377,635	51	%	$	1,313,439	46	%	$	961,497	40	%
Storage (2)	1,137,766		42	%	1,376,697		48	%	1,254,365		52	%
Other (3)	183,760		7	%	175,655		6	%	193,308		8	%
	$	2,699,161			$	2,865,791			$	2,409,170

1)Networking products are comprised primarily of Ethernet Solutions, Embedded Processors and Custom ASICs.

2)Storage products are comprised primarily of Storage Controllers and Fibre Channel Adapters.

3)Other products are comprised primarily of Printer Solutions, Application Processors and others.

The following table summarizes net revenue disaggregated by primary geographical market based on destination of shipment (in thousands, except percentages):



	Year Ended February 1, 2020		% of Total		Year Ended February 2, 2019		% of Total		Year Ended February 3, 2018		% of Total
Net revenue based on destination of shipment:
China	$	1,071,028	40	%	$	1,189,928	42	%	$	1,205,202	50	%
United States	258,827		10	%	251,905		9	%	42,560		2	%
Thailand	230,218		9	%	165,923		6	%	137,662		6	%
Malaysia	226,358		8	%	372,817		13	%	388,469		16	%
Philippines	221,566		8	%	235,921		8	%	270,101		11	%
Others	691,164		25	%	649,297		22	%	365,176		15	%
	$	2,699,161			$	2,865,791			$	2,409,170

These destinations of shipment are not necessarily indicative of the geographic location of the Company's end customers or the country in which the Company's end customers sell devices containing the Company's products.

The following table summarizes net revenue disaggregated by customer type (in thousands, except percentages):



	Year Ended February 1, 2020		% of Total		Year Ended February 2, 2019		% of Total		Year Ended February 3, 2018		% of Total
Net revenue by customer type:
Direct customers	$	2,041,089	76	%	$	2,197,209	77	%	$	1,888,108	78	%
Distributors	658,072		24	%	668,582		23	%	521,062		22	%
	$	2,699,161			$	2,865,791			$	2,409,170

Contract Liabilities

Contract liabilities consist of the Company’s obligation to transfer goods or services to a customer for which the Company has received consideration or the amount is due from the customer. As of February 1, 2020, contract liability balances are comprised of variable consideration estimated based on a portfolio basis using the expected value methodology based on analysis of historical data, current economic conditions, and contractual terms. Variable consideration estimates consist of the estimated returns, price discounts, price protection, rebates, and stock rotation programs. As of the end of a reporting period, some of the performance obligations associated with contracts will have been unsatisfied or only partially satisfied. In accordance with the practical expedients available in the guidance, the Company does not disclose the value of unsatisfied performance obligations for contracts with an original expected duration of one year or less. Contract liabilities are included in accrued liabilities in the consolidated balance sheets.

The opening balance of contract liabilities at the beginning of fiscal year 2020 was $142.4 million. During the year ended February 1, 2020, contract liabilities increased by $666.5 million associated with variable consideration estimates, offset by $697.4 million decrease in such reserves primarily due to credit memos issued to customers. The ending balance of contract liabilities at the end of fiscal year 2020 was $111.5 million. The amount of revenue recognized during the year ended February 1, 2020 that was included in the contract liabilities balance at February 2, 2019 was not material.

Sales Commissions

The Company has elected to apply the practical expedient to expense commissions when incurred as the amortization period is typically one year or less. These costs are recorded in selling, general and administrative expenses in the consolidated statements of operations.

Supplemental Financial Information

12 Months Ended

Feb. 01, 2020

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Supplemental Financial Information

Supplemental Financial Information (in thousands)

Consolidated Balance Sheets


	February 1, 2020		February 2, 2019
Cash and cash equivalents:
Cash	$	513,072	$	491,646
Cash equivalents:
Money market funds	46,355		16,829
Time deposits	88,177		73,935




Cash and cash equivalents	$	647,604	$	582,410


	February 1, 2020		February 2, 2019
Accounts receivable, net:
Doubtful accounts	$	2,126	$	2,637

The allowance for doubtful accounts continues to be included within the accounts receivable, net balance on the consolidated balance sheets.


	February 1, 2020		February 2, 2019
Inventories:
Work-in-process	$	216,496	$	162,384
Finished goods	106,484		113,621
Inventories	$	322,980	$	276,005


	February 1, 2020		February 2, 2019
Property and equipment, net:
Machinery and equipment	$	686,351	$	615,329
Land, buildings, and leasehold improvements	285,084		287,047
Computer software	100,613		105,539
Furniture and fixtures	24,582		23,924
	1,096,630		1,031,839
Less: Accumulated depreciation	(739,538)		(712,861)
Property and equipment, net	$	357,092	$	318,978

The Company recorded depreciation expense of $83.4 million, $64.5 million and $49.2 million for fiscal 2020, 2019 and 2018, respectively.


	February 1, 2020		February 2, 2019
Other non-current assets:

Technology and other licenses	$	277,634	$	125,278
Operating right-of-use assets	110,907		—
Prepaid ship and debit (1)	75,362		75,079

Other	32,947		34,512
Other non-current assets	$	496,850	$	234,869

(1) Prepaid ship and debit of $75.4 million and $75.1 million as of February 1, 2020 and February 2, 2019, respectively, relate to certain prepaid distributor arrangements for ship and debit claims. Amortization of technology and other licenses was $70.4 million, $57.0 million and $34.3 million in fiscal 2020, 2019 and 2018, respectively.


	February 1, 2020		February 2, 2019
Accrued liabilities:
Contract liabilities	$	111,486	$	142,378
Technology license obligations	71,623		48,018

Deferred non-recurring engineering credits	51,109		13,440
Lease liabilities - current	28,662		—
Accrued restructuring	14,302		26,702
Accrued royalty	10,927		11,438
Accrued income tax payable	6,133		47,079
Other	52,397		46,454
Accrued liabilities	$	346,639	$	335,509


	February 1, 2020		February 2, 2019
Other non-current liabilities:
Lease liabilities - non current	$	115,778	$	—
Technology license obligations	107,893		6,716
Non-current income taxes payable	37,983		59,221
Long-term restructuring liabilities	126		13,654
Other	12,452		15,004
Other non-current liabilities	$	274,232	$	94,595

Accumulated other comprehensive income (loss):

The changes in accumulated other comprehensive income (loss) by components are presented in the following tables (in thousands):


	Unrealized Gain (Loss) on Marketable Securities (1)		Unrealized Gain (Loss) on Cash Flow Hedges (2)		Total
Balance at February 3, 2018	$	(2,322)	$	—	$	(2,322)
Other comprehensive income (loss) before reclassifications	(733)		—		(733)
Amounts reclassified from accumulated other comprehensive income (loss)	3,055		—		3,055
Net current-period other comprehensive loss, net of tax	2,322		—		2,322
Balance at February 2, 2019	—		—		—
Other comprehensive loss before reclassifications	—		(37)		(37)
Amounts reclassified from accumulated other comprehensive income (loss)	—		37		37
Net current-period other comprehensive income, net of tax	—		—		—
Balance at February 1, 2020	$	—	$	—	$	—

(1) The amounts of gains (losses) associated with the Company's marketable securities reclassified from accumulated other comprehensive income (loss) are recorded in other income, net in the consolidated statements of operations.

(2) The amounts of gains (losses) associated with the Company's derivative financial instruments reclassified from accumulated other comprehensive income (loss) are recorded in operating expenses in the consolidated statements of operations.

Consolidated Statements of Operations


	Year Ended
	February 1, 2020		February 2, 2019		February 3, 2018
Other income, net:

Gain on sale of business (1)	$	1,121,709	$	—	$	5,254
Net realized loss on investments	—		(3,066)		(2,777)
Currency remeasurement loss	(2,817)		(2,625)		(28)
Other income	3,663		6,210		2,364

Other Income, net	$	1,122,555	$	519	$	4,813

(1) The Company recognized a pre-tax gain on sale of $1.1 billion in conjunction with the divestiture of the Wi-Fi Connectivity business. See “Note 1 - Basis of Presentation” for additional information.

Consolidated Statements of Cash Flows


	Year Ended
	February 1, 2020		February 2, 2019		February 3, 2018
Supplemental cash flow information:
Cash paid for interest	$	76,506	$	39,156	$	746
Cash paid for income taxes, net	$	117,529	$	8,143	$	11,401
Non-Cash Investing and Financing Activities:
Non-cash consideration paid for the acquisition	$	15,520	$	3,331,342	$	—
Purchase of software and intellectual property under license obligations	$	193,149	$	4,221	$	59,803

Unsettled trade payable of available-for-sale securities	$	—	$	—	$	4,497
Unpaid purchase of property and equipment at end of year	$	23,015	$	8,837	$	5,595

Unpaid equity and debt financing costs	$	—	$	—	$	3,244

Investments

12 Months Ended

Feb. 01, 2020

Investments, Debt and Equity Securities [Abstract]

Investments

As of February 1, 2020, and February 2, 2019, the Company has no investments on hand.

Short-term, highly liquid investments of $134.5 million and $90.8 million as of February 1, 2020 and February 2, 2019, respectively, included in cash and cash equivalents on the accompanying consolidated balance sheets are not considered as investments because the gross unrealized gains and losses were immaterial as the carrying values approximate fair value because of the short-term maturity of such investments.

Gross realized gains and gross realized losses on sales of available-for-sale securities are presented in the following table (in thousands):


	Year Ended
	February 1, 2020		February 2, 2019		February 3, 2018
Gross realized gains	$	14	$	371	$	186
Gross realized losses	(6)		(3,437)		(2,963)

Total net realized gains (losses)	$	8	$	(3,066)	$	(2,777)

Fair Value Measurements

12 Months Ended

Feb. 01, 2020

Fair Value Disclosures [Abstract]

Fair Value Measurements

Fair value is an exit price representing the amount that would be received in the sale of an asset or paid to transfer a liability in an orderly transaction between market participants. As such, fair value is a market-based measurement that should be determined based on assumptions that market participants would use in pricing an asset or a liability. As a basis for considering such assumptions, the accounting guidance establishes a three-tier value hierarchy, which prioritizes the inputs used in the valuation methodologies in measuring fair value:

Level 1 — Observable inputs that reflect quoted prices for identical assets or liabilities in active markets.

Level 2 — Other inputs that are directly or indirectly observable in the marketplace.

Level 3 — Unobservable inputs that are supported by little or no market activity.

The fair value hierarchy also requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value.

The Company’s Level 1 assets include institutional money-market funds that are classified as cash equivalents and marketable investments in U.S. government and agency debt, which are valued primarily using quoted market prices. The Company’s Level 2 assets include its marketable investments in time deposits, as the market inputs used to value these instruments consist of market yield. In addition, forward contracts, and the severance pay fund are classified as Level 2 assets as the valuation inputs are based on quoted prices and market observable data of similar instruments.

The tables below set forth, by level, the Company’s assets and liabilities that are measured at fair value on a recurring basis. The tables do not include assets and liabilities that are measured at historical cost or any basis other than fair value (in thousands):


	Fair Value Measurements at February 1, 2020
	Level 1		Level 2		Level 3		Total
Items measured at fair value on a recurring basis:
Assets
Cash equivalents:
Money market funds	$	46,355	$	—	$	—	$	46,355
Time deposits	—		88,177		—		88,177















Other non-current assets:
Severance pay fund	—		693		—		693
Total assets	$	46,355	$	88,870	$	—	$	135,225


	Fair Value Measurements at February 2, 2019
	Level 1		Level 2		Level 3		Total
Items measured at fair value on a recurring basis:
Assets
Cash equivalents:
Money market funds	$	16,829	$	—	$	—	$	16,829
Time deposits	—		73,935		—		73,935















Other non-current assets:
Severance pay fund	—		727		—		727
Total assets	$	16,829	$	74,662	$	—	$	91,491

There were no transfers of assets between levels in either fiscal 2020 or 2019.

Fair Value of Debt

The Company classified the Term Loan, the 2023 Notes and 2028 Notes under Level 2 of the fair value measurement hierarchy. The carrying value of the Term Loan approximates its fair value as the Term Loan is carried at a market observable interest rate that resets periodically. At February 1, 2020, the estimated aggregate fair value of the 2023 Notes and 2028 Notes was $1.1 billion and were classified as Level 2 as there are quoted prices from less active markets for the notes.

- Definition

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.

+ References + Details

Debt

12 Months Ended

Feb. 01, 2020

Debt Disclosure [Abstract]

Debt

In connection with the Cavium Acquisition (see “Note 3 - Business Combinations”), the Company executed debt agreements in June 2018 to obtain a $900 million term loan, a $500 million revolving credit facility and $1.0 billion of senior unsecured notes. Upon completion of the offering of the senior unsecured notes in June 2018, the Company terminated an $850 million bridge loan commitment. This bridge loan commitment was provided by the underwriting bankers at the time the Merger Agreement was executed in November 2017 and was never drawn upon.

Bridge Loan

On November 4, 2019, the Company entered into a term credit agreement (“Term Credit Agreement”) with certain lenders. The Term Credit Agreement provides for borrowings of $600 million in the form of a bridge loan (“Bridge Loan”). The proceeds of the Bridge Loan were used to fund the purchase consideration for the Avera acquisition that closed on November 5, 2019. The Bridge Loan had a 90-day term with a maturity date on February 3, 2020 and had a stated floating interest rate which equates to reserve-adjusted LIBOR + 90.0 bps. The Bridge Loan does not require any scheduled principal payments prior to final maturity but does permit the Company to make early principal payments without premium or penalty. On December 11, 2019, the Company repaid the Bridge Loan in full.

Term Loan and Revolving Credit Facility

On June 13, 2018, the Company entered into a credit agreement (“Credit Agreement”) with certain lenders. The Credit Agreement provides for borrowings of: (i) up to $500 million in the form of a revolving line of credit (“Revolving Credit Facility”) and (ii) $900 million in the form of a term loan (“Term Loan”). The proceeds of the Term Loan were used to fund a portion of the cash consideration for the Cavium acquisition, repay Cavium’s debt, and pay transaction expenses in connection with the Cavium acquisition. The proceeds of the Revolving Credit Facility are intended for general corporate purposes of the Company and its subsidiaries, which may include, among other things, the financing of acquisitions, the refinancing of other indebtedness and the payment of transaction expenses related to the foregoing. On September 17, 2019, the Company drew down $350 million on its Revolving Credit Facility to fund a portion of the cash consideration for the Aquantia acquisition. The outstanding balance of the Revolving Credit Facility was repaid on December 11, 2019. Following is further detail of the terms of the various debt agreements.

The Term Loan has a three-year term which matures on July 6, 2021 and has a stated floating interest rate which equates to reserve-adjusted LIBOR + 137.5 bps. The effective interest rate for the Term Loan was 4.060% as of February 1, 2020. The Term Loan does not require any scheduled principal payments prior to final maturity but does permit the Company to make early principal payments without premium or penalty. During the year ended February 1, 2020 the Company repaid $300 million of the principal outstanding, and wrote off $2.1 million of associated unamortized debt issuance costs. As of February 1, 2020, the Term Loan has $450 million principal unpaid and outstanding. The Revolving Credit Facility has a five-year term and has a stated floating interest rate which equates to reserve-adjusted LIBOR + 150.0 bps. As of February 1, 2020, the full amount of the Revolving Credit Facility of $500 million was undrawn and will be available for draw down through June 13, 2023. An unused commitment fee is payable quarterly based on unused balances at a rate that is based on the ratings of the Company's senior unsecured long-term indebtedness. This rate was 0.175% at February 1, 2020.

The Company currently carries debt that rely on the LIBOR as the benchmark rate. LIBOR is expected to be phased out as a benchmark rate by the end of 2021. The Company expects its debt to continue to use LIBOR until the rate is no longer available or a relevant governmental authority makes a public statement that LIBOR will no longer be available after a certain date. To the extent LIBOR ceases to exist, the Company will need to amend its credit agreements that utilize LIBOR as a factor in determining the interest rate. Currently, there is not a firm timeframe for this change. This update currently has no foreseeable impact on the Company's unaudited condensed consolidated financial statements; however, it may have an effect in the future.

The Credit Agreement requires that the Company and its subsidiaries comply, subject to certain exceptions, with covenants relating to customary matters such as creating or permitting certain liens, entering into sale and leaseback transactions, consolidating, merging, liquidating or dissolving, and entering into restrictive agreements. It also prohibits subsidiaries of the Company from incurring additional indebtedness and requires the Company to comply with a leverage ratio financial covenant as of the end of any fiscal quarter. As of February 1, 2020, the Company was in compliance with all of its debt covenants.

Senior Unsecured Notes

On June 22, 2018, the Company completed a public offering of (i)$500.0 million aggregate principal amount of the Company's 4.200% Senior Notes due 2023 (the “2023 Notes”) and (ii) $500.0 million aggregate principal amount of the Company's 4.875% Senior Notes due 2028 (the “2028 Notes” and, together with the 2023 Notes, the “Senior Notes”).

The 2023 Notes mature on June 22, 2023 and the 2028 Notes mature on June 22, 2028. The stated and effective interest rates for the 2023 Notes are 4.200% and 4.420%, respectively. The stated and effective interest rates for the 2028 Notes are 4.875% and 5.010%, respectively. The Company may redeem the Senior Notes, in whole or in part, at any time prior to their maturity at the redemption prices set forth in Senior Notes. In addition, upon the occurrence of a change of control repurchase event (which involves the occurrence of both a change of control and a ratings event involving the Senior Notes being rated below investment grade), the Company will be required to make an offer to repurchase the Senior Notes at a price equal to 101% of the principal amount of the notes, plus accrued and unpaid interest to, but excluding, the repurchase date. The indenture governing the Senior Notes also contains certain limited covenants restricting the Company’s ability to incur certain liens, enter into certain sale and leaseback transactions and merge or consolidate with any other entity or convey, transfer or lease all or substantially all of the Company’s properties or assets to another person, which, in each case, are subject to certain qualifications and exceptions.

Summary of Borrowings and Outstanding Debt

The following table summarizes the Company's outstanding debt at February 1, 2020 (in thousands):


	February 1, 2020		February 2, 2019
Face Value Outstanding:
Term Loan	$	450,000	$	750,000
2023 Notes	500,000		500,000
2028 Notes	500,000		500,000
Total borrowings	1,450,000		1,750,000
Less: Unamortized debt discount and issuance cost	(10,976)		(17,301)
Net carrying amount of debt	1,439,024		1,732,699
Less: Current portion	—		—
Non-current portion	$	1,439,024	$	1,732,699

During fiscal 2020 and fiscal 2019, the Company recognized $79.8 million and $50.1 million of interest expense, respectively, in its consolidated statements of operations related to interest, amortization of debt issuance costs and accretion of discount associated with the outstanding Term Loan and Senior Notes.

As of February 1, 2020, the aggregate future contractual maturities of the Company's outstanding debt, at face value, were as follows (in thousands):


Fiscal Year	Amount

2021	$	—
2022	450,000
2023	—
2024	500,000
2025	—
Thereafter	500,000
Total	$	1,450,000

Repayment of Debt and Termination of Credit Facility of Cavium

On July 6, 2018, concurrent with completing the acquisition of Cavium as further described in “Note 3 - Business Combinations,” the Company assumed and paid all of Cavium's outstanding debt and accrued interest of $606.6 million. Cavium's debt was governed under a credit agreement dated August 16, 2016, which was terminated following the repayment.

Commitments and Contingencies

12 Months Ended

Feb. 01, 2020

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies

Warranty Obligations

The Company’s products carry a standard one-year warranty with certain exceptions in which the warranty period can extend to more than one year based on contractual agreements. The Company’s warranty expense has not been significant in the periods presented.

Technology License Commitments

The Company purchases certain intellectual property under technology license obligations. Future payments under technology license obligations as of February 1, 2020, are presented in the following tables (in thousands):


Fiscal Year	Technology License Obligations
2021	$	83,746
2022	70,659
2023	40,084
2024	29,309
2025	309
Thereafter	309
Total future minimum payments	224,416
Less: amount representing interest	(8,843)
Present value of future minimum payments	215,573
Less: current portion	(71,623)
Non-current portion	$	143,950

Technology license obligations include the liabilities under agreements for technology licenses between the Company and various vendors.

Purchase Commitments

Under the Company’s manufacturing relationships with its foundry partners, cancellation of all outstanding purchase orders is allowed but requires payment of all costs and expenses incurred through the date of cancellation. As of February 1, 2020, these foundries had incurred approximately $163.7 million of manufacturing costs and expenses relating to the Company’s outstanding purchase orders.

Contingencies and Legal Proceedings

The Company currently is, and may from time to time become, a party to claims, lawsuits, governmental inquiries, inspections or investigations and other legal proceedings (collectively, “Legal Matters”) arising in the course of its business. Such Legal Matters, even if not meritorious, could result in the expenditure of significant financial and managerial resources.

The Company is currently unable to predict the final outcome of its pending Legal Matters and therefore cannot determine the likelihood of loss or estimate a range of possible loss, except with respect to amounts where it has determined a loss is both probable and estimable and has made an accrual. The Company evaluates, at least on a quarterly basis, developments in its Legal Matters that could affect the amount of any accrual, as well as any developments that would result in a loss contingency to become both probable and reasonably estimable. The ultimate outcome of any Legal Matter involves judgments, estimates and inherent uncertainties. An unfavorable outcome in a Legal Matter, particularly in a patent dispute, could require the Company to pay damages or could prevent the Company from selling some of its products in certain jurisdictions. While the Company cannot predict with certainty the results of the Legal Matters in which it is currently involved, the Company does not expect that the ultimate costs to resolve these Legal Matters will individually or in the aggregate have a material adverse effect

on its financial condition, however, there can be no assurance that the current or any future Legal Matters will be resolved in a manner that is not adverse to the Company’s business, financial condition, results of operations or cash flows.

Indemnities, Commitments and Guarantees

During its normal course of business, the Company has made certain indemnities, commitments and guarantees under which it may be required to make payments in relation to certain transactions. These indemnities may include indemnities for general commercial obligations, indemnities to various lessors in connection with facility leases for certain claims arising from such facility or lease, and indemnities to directors and officers of the Company to the maximum extent permitted under the laws of Bermuda. In addition, the Company has contractual commitments to various customers, which could require the Company to incur costs to repair an epidemic defect with respect to its products outside of the normal warranty period if such defect were to occur. The duration of these indemnities, commitments and guarantees varies, and in certain cases, is indefinite. Some of these indemnities, commitments and guarantees do not provide for any limitation of the maximum potential future payments that the Company could be obligated to make. In general, the Company does not record any liability for these indemnities, commitments and guarantees in the accompanying consolidated balance sheets as the amounts cannot be reasonably estimated and are not considered probable. The Company does, however, accrue for losses for any known contingent liability, including those that may arise from indemnification provisions, when future payment is probable.

Intellectual Property Indemnification

In addition to the above indemnities, the Company has agreed to indemnify certain customers for claims made against the Company’s products where such claims allege infringement of third-party intellectual property rights, including, but not limited to, patents, registered trademarks, and/or copyrights. Under the aforementioned indemnification clauses, the Company may be obligated to defend the customer and pay for the damages awarded against the customer as well as the attorneys’ fees and costs under an infringement claim. The Company’s indemnification obligations generally do not expire after termination or expiration of the agreement containing the indemnification obligation. Generally, there are limits on and exceptions to the Company’s potential liability for indemnification. Although historically the Company has not made significant payments under these indemnification obligations, the Company cannot estimate the amount of potential future payments, if any, that it might be required to make as a result of these agreements. The maximum potential amount of any future payments that the Company could be required to make under these indemnification obligations could be significant.

Shareholders' Equity

12 Months Ended

Feb. 01, 2020

Equity [Abstract]

Shareholders' Equity

Shareholders’ Equity

Preferred and Common Stock

Under the terms of the Company’s Articles of Association, the Board of Directors may determine the rights, preferences, and terms of the Company’s authorized but unissued shares of preferred stock.

As of February 1, 2020, the Company is authorized to issue 8.0 million shares of $0.002 par value preferred stock and 992.0 million shares of $0.002 par value common stock. As of February 1, 2020, and February 2, 2019, no shares of preferred stock were outstanding.

In June 2019, the Company executed a funded research and development agreement with a business partner. In conjunction with the agreement, the Company issued a warrant to purchase 9.0 million of the Company's common shares, subject to certain vesting and exercise conditions.

Restricted Stock Unit Withholdings

For the years ended February 1, 2020 and February 2, 2019, the Company withheld approximately 4.0 million and 2.7 million shares, or $98.3 million and $54.9 million, of common stock, respectively, in settlement of employee tax withholding obligations due upon the vesting of restricted stock.

Cash Dividends on Shares of Common Stock

During fiscal 2020, the Company declared and paid cash dividends of $0.24 per common share, or $159.6 million, on the Company’s outstanding common stock. During fiscal 2019, the Company declared and paid cash dividends of $0.24 per common share, or $148.1 million, on the Company’s outstanding common stock.

Any future dividends will be subject to the approval of the Company's Board of Directors.

On March 12, 2020, the Company announced that its board of directors declared a cash dividend of $0.06 per share payable on April 22, 2020 to shareholders of record as of April 3, 2020.

Stock Repurchase Program

On November 17, 2016, the Company announced that its Board of Directors authorized a $1.0 billion share repurchase plan. The newly authorized stock repurchase program replaced in its entirety the prior $3.25 billion stock repurchase program. On October 16, 2018, the Company announced that its Board of Directors authorized a $700 million addition to the balance of its existing share repurchase plan. The Company intends to effect share repurchases in accordance with the conditions of Rule 10b-18 under the Exchange Act, but may also make repurchases in the open market outside of Rule 10b-18 or in privately negotiated transactions. The share repurchase program will be subject to market conditions and other factors, and does not obligate the Company to repurchase any dollar amount or number of its common shares and the repurchase program may be extended, modified, suspended or discontinued at any time.

The Company repurchased 14.5 million of its common shares for $364.3 million, 6.0 million of its common shares for $104.0 million and 31.5 million of its common shares for $526.1 million in cash during fiscal 2020, 2019 and 2018, respectively. The repurchased shares were retired immediately after the repurchases were completed. The Company records all repurchases, as well as investment purchases and sales, based on their trade date. As of February 1, 2020, a total of 306.9 million shares have been repurchased to date under the Company’s share repurchase program for a total $4.2 billion in cash and there was $589.7 million remaining available for future share repurchases.

Subsequent to the year ended February 1, 2020 through March 16, 2020, the Company purchased an additional 0.8 million of its common shares for $17.2 million at an average price per share of $21.14.

A summary of the stock repurchase activity under the stock repurchase program, reported based on the trade date, is summarized as follows (in thousands, except per-share amounts):


	Shares Repurchased	Weighted- Average Price per Share		Amount Repurchased


Cumulative balance at January 28, 2017	254,904	$	12.75	$	3,250,481
Repurchase of common stock under the stock repurchase program (1)	31,460	$	16.72	526,075
Cumulative balance at February 3, 2018	286,365	$	13.19	3,776,557
Repurchase of common stock under the stock repurchase program (2)	6,041	$	17.21	103,974
Cumulative balance at February 2, 2019	292,406	$	13.27	3,880,531
Repurchase of common stock under the stock repurchase program (3)	14,486	$	25.15	364,272
Cumulative balance at February 1, 2020	306,892	$	13.83	$	4,244,803

(1) There were no stock repurchases pending settlement as of February 3, 2018.

(2) There were no stock repurchases pending settlement as of February 2, 2019.

(3) There were no stock repurchases pending settlement as of February 1, 2020.

Employee Benefit Plans

12 Months Ended

Feb. 01, 2020

Share-based Payment Arrangement [Abstract]

Employee Benefit Plans

Employee Stock Compensation Plans

1995 Stock Option Plan

In April 1995, the Company adopted the 1995 Stock Option Plan (the “Option Plan”). The Option Plan, as amended from time to time, had 383.4 million common shares reserved for issuance thereunder as of February 1, 2020. Options granted under the Option Plan generally have a term of 10 years and generally must be issued at prices equal to the fair market value of the stock on the date of grant. The Company can also grant stock awards, which may be subject to vesting. Further, the Company can grant restricted stock unit (“RSU”) awards. RSU awards are denominated in shares of stock, but may be settled in cash or shares upon vesting, as determined by the Company at the time of grant. Awards under the Option Plan generally vest over 2 to 5 years.

As of February 1, 2020, approximately 82.7 million shares remained available for future grants under the Option Plan.

Equity awards granted under the Option Plan include time-based RSUs as well as RSUs that vest based on the achievement of performance-based criteria i.e. Company financial goals (“Financial Performance RSU”), or based on achievement of market-based goals i.e. relative total shareholder return (“TSR RSUs”), or stock price goals (“Value Creation Awards” or “VCA RSUs”).

Prior to fiscal year 2020, the Company granted Financial Performance RSUs to each of its executive officers when they joined the Company, and as an annual refresh grant to all executive officers and other Vice Presidents in April of each fiscal year. The Financial Performance RSUs had a three-year service requirement. The number of shares to be earned could be 0% to 200% of target and was based on the achievement of certain financial operating metrics to be measured as of the end of the second fiscal year of the three-year vesting term. Shares granted under these Financial Performance RSUs are reported in the table presented below as “Performance-Based” based on 100% expected achievement.

In addition, the Company grants TSR RSUs to its executive officers that newly join the Company, and as an annual refresh grant to all executive officers and other Vice Presidents, usually in April of each fiscal year. Prior to fiscal year 2020, TSR RSUs were measured based on stock performance as compared to that of companies on the Philadelphia Semiconductor Sector over a performance period defined in the award. The number of shares to be earned can be 0% to 150% of target and is based on the achievement of performance objectives relating to relative total shareholder return of the Company’s common shares. Beginning in fiscal year 2020, the S&P 500 Index serves as the benchmark index. The TSR RSUs have a three year service vesting requirement. The number of shares to be earned can be 0% to 200% of target and is based on the achievement of performance objectives relating to relative total shareholder return of the Company's common shares. These TSR RSUs are reported in the table presented below as “Market-Based” awards based on 100% expected achievement.

In fiscal year 2020, the Company issued Value Creation Awards that are based on achievement of the Company's stock price target over a specified performance period, also referred to as VCA RSUs. The VCA RSU will be earned if the Company's average closing trading stock price over 100-calendar days equals or exceeds a certain target price. 100% of the award will vest on the 1-year anniversary of the achievement. The grant will be forfeited if the market-based condition is not achieved. These VCA RSUs are reported in the table presented below as “Market-Based” awards based on 100% expected achievement.

In December 2017, the Company’s Executive Compensation Committee approved a deferred stock program, whereby executives of the Company have the option, beginning in 2018, to defer the settlement of time-based and performance-based restricted stock units granted under the Option Plan to a future date. A deferral election is irrevocable after the annual submission deadline. The shares of common stock underlying the deferred grants will be distributed at the earliest of the employee’s specified future settlement date, not to be earlier than 2023, or upon separation from service, a change in control, or death or disability. As of February 1, 2020, no executives had elected deferral.

Cavium Acquisition

Following the Cavium acquisition and in accordance with the Cavium merger agreement, certain outstanding options to purchase shares of Cavium common stock and certain restricted stock units with respect to Cavium common stock, each granted under Cavium 2016 Equity Incentive Plan (“Cavium 2016 EIP”), Cavium 2007 Equity Incentive Plan (“Cavium 2007 EIP”) and QLogic 2005 Performance Incentive Plan, as assumed by Cavium effective August 16, 2016 (“QLogic 2005 Plan”), (and collectively, with the Cavium 2016 EIP and the Cavium 2007 EIP, the “Cavium Plans”), were assumed by the Company and converted into options to purchase common shares of the Company and restricted stock units with respect to common shares of the Company, respectively. The Company filed a registration statement on July 6, 2018 to register 15,824,555 common shares of the Company, issuable under the Cavium Plans, comprised of 2,535,940 common shares issuable pursuant to outstanding but unexercised options under the Cavium Plans and 13,288,615 common shares issuable pursuant to outstanding unvested restricted stock units under the Cavium Plans.

Cavium 2016 EIP

The Cavium 2016 EIP was adopted by Cavium on June 15, 2016 and was intended as the successor to and continuation of Cavium 2007 EIP. The Cavium 2016 EIP provided for the grant of incentive stock options, non-statutory stock options, stock appreciation rights, restricted stock awards, restricted stock unit awards, performance stock awards, performance cash awards and other stock awards, which may be granted to employees, directors and consultants. Awards under the Cavium 2016 EIP generally vest over four years and expire seven to ten years from the date of grant. Following the effective date, no additional awards were granted under the Cavium 2007 EIP.

Cavium 2007 EIP

Cavium adopted the Cavium 2007 EIP in May 2007 upon completion of its initial public offering. The Cavium 2007 EIP provided for the grant of incentive stock options, non-statutory stock options, restricted stock awards, restricted stock unit awards, stock appreciation rights, performance stock awards, and other forms of equity compensation and performance cash awards, all of which may be granted to employees (including officers), directors, and consultants or affiliates. Awards granted under the Cavium 2007 EIP vest at the rate specified by the plan administrator, for stock options, typically with 1/8th of the shares vesting six months after the date of grant and 1/48th of the shares vesting monthly thereafter over the next three and one half years and for restricted stock unit awards typically with quarterly vesting over four years. Awards expire seven to ten years from the date of grant.

QLogic 2005 Plan

The QLogic 2005 Plan was assumed and registered by Cavium upon its completion of acquisition of QLogic Corporation on August 16, 2016. The QLogic 2005 Plan provided for the issuance of restricted stock unit awards, incentive and non-qualified stock options, and other stock-based incentive awards. Restricted stock unit awards granted pursuant to the QLogic 2005 Plan to employees subject to a service condition generally vest over four years from the date of grant. Stock options granted pursuant to the QLogic 2005 Plan to employees have ten-year terms and generally vest over four years from the date of grant.

Cavium Acquisition-related Equity Awards

The awards under the Cavium Plans assumed by the Company in the Cavium acquisition were measured at the acquisition date based on the estimated fair value of $357.1 million. A portion of that fair value, $68.9 million, which represented the pre-acquisition service provided by employees to Cavium, was included in the total consideration transferred as part of the acquisition. As of the acquisition date, the remaining portion of the fair value of those awards was $288.2 million, representing post-acquisition share-based compensation expense that will be recognized as these employees provide service over the remaining vesting periods.

Aquantia Plans Assumed

In accordance with the Aquantia merger agreement, certain outstanding options to purchase shares of Aquantia common stock and certain restricted stock units with respect to Aquantia common stock, each granted under Aquantia 2017 Equity Incentive Plan (“Aquantia 2017 EIP”), Aquantia 2015 Equity Incentive Plan (“Aquantia 2015 EIP”) and Aquantia 2004 Equity Incentive Plan (“Aquantia 2004 EIP”), the “Aquantia Plans” were assumed by the Company and converted into options to purchase common shares of the Company and restricted stock units with respect to common shares of the Company, respectively. The Company filed a registration statement on September 19, 2019 to register 2,128,823 common shares of the Company, issuable under the Aquantia plans, comprised of 805,965 common shares issuable pursuant to outstanding but unexercised options under the Aquantia Plans and 1,322,858 common shares issuable pursuant to outstanding unvested restricted stock units under the Aquantia Plans.

Aquantia Acquisition-related Equity Awards

The awards under the Aquantia Plans assumed by the Company in the Aquantia acquisition were measured at the acquisition date based on the estimated fair value of $54.1 million. A portion of that fair value, $21.5 million, which represented the pre-acquisition service provided by employees to Aquantia, was included in the total consideration transferred as part of the acquisition. As of the acquisition date, the remaining portion of the fair value of those awards was $32.6 million, representing post-acquisition share-based compensation expense that will be recognized as these employees provide service over the remaining vesting periods.

Outside Director Equity Compensation Policy

In September 2016, the Company’s Board of Directors approved the termination of the 2007 Directors’ Stock Incentive Plan, (“2007 Director Plan”) that was initially adopted in October 2007, and it approved a new Outside Director Equity Compensation Policy that governs the grant of equity awards to non-employee directors under the Option Plan. At the annual general meeting of shareholders held in June 2015, the shareholders approved an amendment to the Option Plan to enable a full range of awards to be granted to non-employee directors. Under the newly amended Outside Director Compensation Policy, each outside director, upon appointment to fill a vacancy on the board or in connection with election at an annual meeting of shareholders, will be granted an RSU award under the Option Plan for a number of shares with an aggregate fair market value equal to $235,000 on the grant date. In no event shall an outside director be awarded an annual RSU award for more than 20,000 shares. The RSU award vests 100% on the earlier of the date of the next annual general meeting of shareholders or the one-year anniversary of the date of grant.

Employee Stock Purchase Plan

Under the 2000 Employee Stock Purchase Plan, as amended and restated on October 31, 2011 (the “ESPP”), participants purchase the Company’s stock using payroll deductions, which may not exceed 15% of their total cash compensation. Pursuant to the terms of the current ESPP, the “look-back” period for the stock purchase price is 24 months. Offering and purchase periods begin on December 8 and June 8 of each year. Participants enrolled in a 24-month offering period will continue in that offering period until the earlier of the end of the offering period or the reset of the offering period. A reset occurs if the fair market value of the Company’s common shares on any purchase date is less than it was on the first day of the offering period. Participants in a 24-month offering period will be granted the right to purchase common shares at a price per share that is 85% of the lesser of the fair market value of the shares at (i) the participant’s entry date into the two-year offering period or (ii) the end of each six-month purchase period within the offering period.

Under the ESPP, a total of 5.2 million shares were issued in fiscal 2020 at a weighted-average price of $13.25 per share, a total of 3.2 million shares were issued in fiscal 2019 at a weighted-average price of $15.08 per share, and a total of 7.0 million shares were issued in fiscal 2018 at a weighted-average price of $7.49 per share. As of February 1, 2020, there was $28.1 million of unamortized compensation cost related to the ESPP.

As of February 1, 2020, approximately 29.5 million shares remained available for future issuance under the ESPP.

Summary of Share-Based Compensation Expense

The following table summarizes share-based compensation expense (in thousands):


	Year Ended
	February 1, 2020		February 2, 2019		February 3, 2018
Continuing operations:
Cost of goods sold	$	13,759	$	12,024	$	6,646
Research and development	157,054		108,762		52,127
Selling, general and administrative	71,996		77,309		26,349
Share-based compensation - continuing operations	$	242,809	$	198,095	$	85,122
Discontinued operations:
Cost of goods sold	—		—		(11)
Research and development	—		—		1,458
Selling, general and administrative	—		—		120
Share-based compensation - discontinued operations	—		—		1,567
Total share-based compensation	$	242,809	$	198,095	$	86,689

Share-based compensation capitalized in inventory was $4.1 million at February 1, 2020, $2.8 million at February 2, 2019 and $1.3 million at February 3, 2018.

Restricted Stock and Stock Unit Awards

A summary of restricted stock unit activity, which includes time-based and performance-based or market-based restricted stock units, is as follows (in thousands, except per-share amounts):


	Time-Based					Performance-Based								Market-Based			Total
	Number of Shares	Weighted- Average Grant Date Fair Value		Number of Shares			Weighted- Average Grant Date Fair Value		Number of Shares		Weighted- Average Grant Date Fair Value		Number of Shares		Weighted- Average Grant Date Fair Value




Balance at January 28, 2017	9,925	$	10.52	313			$	13.91	559		$	11.80	10,797		$	10.69
Granted	8,154	$	15.33	406	[1]		$	14.49	409	[1]	$	15.14	8,969		$	15.28
Vested	(5,653)	$	10.86	—			$	—	—		$	—	(5,653)		$	10.86
Canceled/Forfeited	(2,137)	$	11.95	(47)			$	13.99	(47)		$	14.71	(2,231)		$	12.05
Balance at February 3, 2018	10,289	$	13.84	672			$	14.25	921		$	13.14	11,882		$	13.81
Assumed upon acquisition [4]	13,289	$	21.02	—			$	—	—		$	—	13,289		$	21.02
Granted	7,453	$	19.95	340	[1]		$	21.12	351	[1]	$	21.36	8,144		$	20.06
Vested	(8,827)	$	16.30	—			$	—	(30)		$	13.08	(8,857)		$	16.28
Canceled/Forfeited	(3,159)	$	19.64	(64)			$	16.29	(64)		$	16.52	(3,287)		$	19.51
Balance at February 2, 2019	19,045	$	19.15	948			$	16.58	1,178		$	15.40	21,171		$	18.82
Assumed upon acquisition [4]	1,341	$	25.61	—			$	—	—		$	—	1,341		$	25.61
Granted	9,340	$	23.36	288	[2]		$	13.90	3,621	[3]	$	15.39	13,249		$	20.98
Vested	(10,781)	$	20.01	(576)			$	13.90	(713)		$	11.62	(12,070)		$	19.23
Canceled/Forfeited	(3,661)	$	20.57	(149)			$	17.86	(173)		$	21.12	(3,983)		$	20.49
Balance at February 1, 2020	15,284	$	21.34	511			$	17.71	3,913		$	15.83	19,708		$	20.15

[1] Amounts represent the target number of restricted stock units at grant date. For awards granted to our executive officers, up to 200% of the target restricted stock units may vest if the maximum level for performance goals is achieved.

[2] Amount represents the number of restricted stock unit goal shares.

[3] Amount represents the target number of restricted stock units at grant date, including 824 TSR RSU shares and 2,797 VCA RSU shares.

[4] See “Note 3 - Business Combinations” for additional information.

The aggregate intrinsic value of restricted stock units expected to vest as of February 1, 2020 was $473.8 million. The number of restricted stock units that are expected to vest is 19.7 million shares. The Company’s closing stock price of $24.04 as reported on the Nasdaq Global Select Market as of February 1, 2020 was used to calculate the aggregate intrinsic value for the restricted stock units.

As of February 1, 2020, unamortized compensation expense related to restricted stock units was $335.3 million. The unamortized compensation expense for restricted stock units will be amortized on a straight-line basis and is expected to be recognized over a weighted-average period of 1.93 years.

Stock Option Awards

Option Plan and Stock Award Activity

Stock option activity under the Company’s stock option and stock incentive plans is included in the following table (in thousands, except for per share amounts):



	Number of Shares	Weighted- Average Exercise Price








Balance at January 28, 2017	25,096	$	12.61
Granted	—	$	—
Exercised	(10,305)	$	12.38
Canceled/Forfeited	(3,019)	$	14.33
Balance at February 3, 2018	11,772	$	12.36
Assumed upon acquisition*	3,026	$	11.85
Granted	—	$	—
Exercised	(4,812)	$	10.93
Canceled/Forfeited	(362)	$	13.64
Balance at February 2, 2019	9,624	$	12.87
Assumed upon acquisition*	808	$	9.20
Granted	—	$	—
Exercised	(6,178)	$	12.67
Canceled/Forfeited	(37)	$	13.57
Balance at February 1, 2020	4,217	$	12.44
Vested or expected to vest at February 1, 2020	4,217

* See “Note 3 - Business Combinations” for more information.

For stock options vested and expected to vest at February 1, 2020, the aggregate intrinsic value was $48.9 million. For stock options exercisable at February 1, 2020, the aggregate intrinsic value was $47.5 million. The aggregate intrinsic value of stock options exercised during fiscal 2020, 2019 and 2018 was $70.5 million, $40.6 million and $57.0 million, respectively. The Company’s closing stock price of $24.04 as reported on the Nasdaq Global Select Market as of February 1, 2020 was used to calculate the aggregate intrinsic value for all in-the-money options.

Outstanding options and exercisable options information by range of exercise prices as of February 1, 2020 was as follows:


					Outstanding Options							Exercisable Options
Range of Exercise Prices					Number of Shares (in thousands)	Weighted- Average Remaining Contractual Term (in years)		Weighted- Average Exercise Price	Number of Shares (in thousands)		Weighted- Average Exercise Price
$	3.89	$	10.31	678	5.26	$	8.06	654	$	8.03
$	10.76	$	10.76	1,272	3.23	$	10.76	1,272	$	10.76
$	10.89	$	14.35	1,145	5.10	$	13.65	1,062	$	13.65
$	14.45	$	15.87	966	3.57	$	15.58	965	$	15.58
$	15.91	$	22.27	156	4.20	$	16.99	129	$	16.91
Total				4,217	4.18	$	12.44	4,082	$	12.41

As of February 1, 2020, the unamortized compensation expense for stock options was $1.4 million. The unamortized compensation expense for options will be amortized on a straight-line basis and is expected to be recognized over a weighted-average period of 1.19 years.

Valuation of Employee Share-Based Awards

The expected volatility for awards granted during fiscal 2020, 2019 and 2018 was based on historical stock price volatility.

The expected dividend yield is calculated by dividing the current annualized dividend by the closing stock price on the date of grant of the option.

There were no options granted in fiscal 2020, 2019 and 2018 except for the ones we assumed from the Cavium and Aquantia acquisitions as described above.

The following weighted-average assumptions were used for each respective period to calculate the fair value of common shares to be issued under the ESPP on the date of grant using the Black-Scholes option pricing model:


	Year Ended
	February 1, 2020			February 2, 2019			February 3, 2018
Employee Stock Purchase Plan:
Estimated fair value	$	7.06		$	4.91		$	6.03
Expected volatility	35		%	33		%	30		%
Expected term (in years)	1.2			1.2			1.2
Risk-free interest rate	1.8		%	2.6		%	1.6		%
Expected dividend yield	1.0		%	1.4		%	1.1		%

The following weighted-average assumptions were used for each respective period to calculate the fair value of common shares to be issued under Total Shareholder Return performance awards on the date of grant using the Monte Carlo pricing model:


	Year Ended
	February 1, 2020		February 2, 2019		February 3, 2018
Total Shareholder Return Awards:
Expected term (in years)	3.0		2.9		2.9
Expected volatility	32	%	35	%	35	%
Average correlation coefficient of peer companies	0.5		0.5		0.5
Risk-free interest rate	2.4	%	2.5	%	1.4	%
Expected dividend yield	1.0	%	1.1	%	1.6	%

The correlation coefficients are calculated based upon the price data used to calculate the historical volatilities and is used to model the way in which each entity tends to move in relation to its peers.

The following weighted-average assumptions were used for estimating the fair value of common shares to be issued under VCA RSUs on the date of grant using the Monte Carlo pricing model:


	Year Ended
	February 1, 2020
Value Creation Awards:
Expected term (in years)	4.66
Expected volatility	35	%

Risk-free interest rate	1.8	%
Expected dividend yield	1.0	%

Employee 401(k) Plans

The Company sponsors a 401(k) savings and investment plan that allows eligible U.S. employees to participate by making pre-tax contributions to the 401(k) plan ranging from 1% to 50% of eligible earnings subject to a required annual limit. The Company currently matches 100% of the first 4% of the employee’s contribution and 50% of the next 2%, up to a $4,000 maximum contribution effective from January 1, 2018. The Company made matching contributions to employees of $11.0 million in fiscal 2020, $8.6 million in fiscal 2019 and $4.6 million in fiscal 2018. As of February 1, 2020, the 401(k) plan offers a variety of investment alternatives, representing different asset classes. Employees may not invest in the Company’s common shares through the 401(k) plan.

The Company also has voluntary defined contribution plans in various non-U.S. locations. In connection with these plans, the Company made contributions on behalf of employees totaling $9.6 million, $16.8 million and $12.3 million during fiscal 2020, 2019 and 2018, respectively.

Income Taxes

12 Months Ended

Feb. 01, 2020

Income Tax Disclosure [Abstract]

Income Taxes

The U.S. and non-U.S. components of income (loss) from continuing operations before income taxes consist of the following (in thousands):


	Year Ended
	February 1, 2020		February 2, 2019		February 3, 2018
U.S. operations	$	(95,884)	$	666,508	$	24,377
Non-U.S. operations	894,267		(671,155)		426,827
	$	798,383	$	(4,647)	$	451,204

The provision (benefit) for income taxes consists of the following (in thousands):


	Year Ended
	February 1, 2020		February 2, 2019		February 3, 2018
Current income tax provision (benefit):
Federal	$	5,223	$	46,519	$	776
State	(1,937)		5,959		2
Foreign	(4,137)		3,322		(2,541)
Total current income tax provision (benefit)	(851)		55,800		(1,763)
Deferred income tax provision (benefit):
Federal	(125,892)		134,336		10,136
State	(9,382)		(6,567)		83
Foreign	(649,884)		(9,122)		9,606
Total deferred income tax provision (benefit)	(785,158)		118,647		19,825
Total provision (benefit) for income taxes	$	(786,009)	$	174,447	$	18,062

The Company consists of a Bermuda parent holding company with various foreign and U.S. subsidiaries. The applicable statutory rate in Bermuda is zero for the Company for fiscal 2020, 2019, and 2018. For purposes of the reconciliation between the provision (benefit) for income taxes at the statutory rate and the effective tax rate, a U.S. statutory tax rate of 21% for fiscal years 2020 and 2019, and a notional rate of 33.7% for fiscal 2018 is applied as follows:


	Year Ended
	February 1, 2020		February 2, 2019		February 3, 2018

Provision at U.S. statutory rate	$	167,660	$	(976)	$	152,134
State taxes, net of federal benefit	(9,878)		(9,652)		—
Difference in U.S. and non-U.S. tax rates	(181,625)		46,988		(137,419)
Foreign income inclusion in U.S.	13,736		167,093		—
Non-deductible compensation	6,196		13,215		—
Intellectual property transaction	(762,933)		93,777		—
Federal research and development credits	(42,604)		(29,503)		(21,620)
Uncertain tax positions	(3,913)		4,238		—
Change in valuation allowance	26,971		(110,921)		21,339
Other	381		188		3,628
Income tax provision (benefit)	$	(786,009)	$	174,447	$	18,062

The current year income tax benefit is primarily related to the recognition of a $763.0 million tax benefit for the intra-entity transfer of the majority of our intellectual property to a subsidiary in Singapore. This resulted in the recognition of a deferred tax asset and tax benefit of $659.0 million related to the Singapore tax basis in the intellectual property. In addition, the Company recognized $104.0 million of income tax benefit from the reversal of deferred tax liabilities primarily related to previously acquired intangible assets. The income tax expense for fiscal 2019 was primarily the result of restructurings involving the transfer of certain assets and intellectual property used in the business among various subsidiaries and represented the estimated U.S. tax to be paid currently and in future years on income generated from the intellectual property transfer. These transactions align the global economic ownership of the Company's intellectual property rights with its current and future business operations. The Company continues to evaluate potential changes to its legal entity structure in response to guidelines and requirements in various international tax jurisdictions where it conducts business.

Deferred tax assets consist of the following (in thousands):


	February 1, 2020		February 2, 2019
Deferred tax assets:
Net operating losses	$	105,925	$	134,598
Federal and California income tax credits	631,805		557,333
Intangible assets	632,537		—
Reserves and accruals	22,719		18,404
Share-based compensation	4,117		5,213
Lease liabilities	32,120		—
Gross deferred tax assets	1,429,223		715,548
Valuation allowance	(676,780)		(597,829)
Total deferred tax assets	752,443		117,719
Deferred tax liabilities:
Intangible assets	(69,771)		(185,973)
Fixed assets	(27,540)		(13,370)
Unremitted earnings of non-U.S. subsidiaries	(21,284)		(52,828)
Royalty income	—		(99,340)
Right of use assets	(25,290)		—
Total deferred tax liabilities	(143,885)		(351,511)
Net deferred tax assets (liabilities)	$	608,558	$	(233,792)

The deferred tax assets and liabilities based on tax jurisdictions are presented on our Consolidated Balance Sheet as follows:


	February 1, 2020		February 2, 2019
Non-current deferred tax assets	$	639,791	$	12,460
Non-current deferred tax liabilities	(31,233)		(246,252)
Net deferred tax assets (liabilities)	$	608,558	$	(233,792)

In assessing the realization of deferred tax assets across all jurisdictions, management considers whether it is more likely than not that some portion or all of the deferred assets will be realized. The ultimate realization of the deferred tax assets is dependent upon the generation of future taxable income during the periods in which those temporary differences become deductible. As of February 1, 2020, the Company recorded a valuation allowance of $676.8 million which is an increase of $79.0 million from fiscal 2019. The Company provided a full valuation allowance against its federal and state research and development and other tax credits. Based on the available objectively verifiable positive and negative evidence, the Company determined that it is more likely than not that these tax credits and a limited amount of net operating losses will not be realized in the future. The Company also provided a valuation allowance against the deferred tax assets of a portion of its operations in Israel, which has cumulative losses in recent years and is not projecting sufficient future taxable income to realize the benefit of its deferred tax assets.

As of February 1, 2020, the Company had net operating loss carryforwards available to offset future taxable income of approximately $932.1 million, $597.4 million and $514.8 million for U.S. federal, state of California and foreign purposes, respectively. The federal carryforwards will begin to expire in fiscal year 2022, and the California carryforwards will begin to expire in fiscal year 2028, if not utilized before these years. The majority of the Company’s foreign losses carry forward indefinitely. The Company also had federal research and other tax credit carryforwards of approximately $310.7 million which will begin to expire in fiscal 2021. As of February 1, 2020, the Company also had California research tax credit carryforwards of approximately $440.5 million, which can be carried forward indefinitely. The Company also has research and other tax credit carryforwards of approximately $26.0 million in other U.S. states which will begin to expire in fiscal 2021 due to the statutes of limitation.

Utilization of the Company's U.S. federal and state net operating loss and credit carryforwards may be subject to annual limitations due to ownership change provisions by the Internal Revenue Code of 1986, as amended, and similar state provisions. The annual limitation may result in the expiration of net operating losses and credits before utilization. Future changes in the Company's stock ownership, some of which are outside of the Company's control, could result in an ownership change under Section 382 and result in a limitation on US tax attributes. As of February 1, 2020, the Company had approximately $718.5 million and $120.4 million of federal net operating loss and tax credit carryforwards, respectively, in the U.S. subject to an annual limitation. The Company does not expect these limitations to result in any permanent loss of its tax benefits.

The following table reflects changes in the unrecognized tax benefits (in thousands):


	Year Ended
	February 1, 2020		February 2, 2019		February 3, 2018
Unrecognized tax benefits as of the beginning of the period	$	158,323	$	23,252	$	23,793
Increases related to acquired tax positions	9,215		131,631		—
Increases related to prior year tax positions	1,789		1,836		—
Decreases related to prior year tax positions	(6,747)		(6,259)		—
Increases related to current year tax positions	7,614		11,154		2,776

Settlements	(443)		—		—
Lapse in the statute of limitations	(4,044)		(3,198)		(3,341)
Foreign exchange (gain) loss	1,121		(93)		24
Gross amounts of unrecognized tax benefits as of the end of the period	$	166,828	$	158,323	$	23,252

Included in the balances as of February 1, 2020 is $127.3 million of unrecognized tax benefit that would affect the effective income tax rate if recognized. Also, $146.6 million, $135.6 million and $8.6 million of the gross unrecognized tax benefits presented in the table above are offset against deferred tax assets in the consolidated balance sheets as of February 1, 2020, February 2, 2019 and February 3, 2018, respectively.

The amounts in the table above do not include the related interest and penalties. The amount of interest and penalties accrued was approximately $12.4 million, $15.1 million, and $17.2 million as of February 1, 2020, February 2, 2019, and February 3, 2018, respectively. The Company’s policy is to recognize these interest and penalties as a component of income tax expense. The consolidated statements of operations for fiscal 2020, 2019, and 2018 included $1.4 million, $2.7 million, and $2.3 million, respectively, of interest and penalties related to the unrecognized tax benefits.

The Company's major tax jurisdictions are the United States, the states of California and Massachusetts, China, India, Israel, Singapore, and Switzerland. The Company is subject to income tax audits by the respective tax authorities in all of the jurisdictions in which it operates. The examination of tax liabilities in each of these jurisdictions requires the interpretation and application of complex and sometimes uncertain tax laws and regulations. As of February 1, 2020, the Company is currently under examination in material jurisdictions including China, India, Israel, Singapore, and the United States for fiscal years 2008 through 2018.

The Company will continue to review its tax positions and provide for or reverse unrecognized tax benefits as issues arise. During the next 12 months, it is reasonably possible that the amount of unrecognized tax benefits could increase or decrease significantly due to changes in tax law in various jurisdictions, new tax audits and changes in the U.S. dollar as compared to foreign currencies within the next 12 months. Excluding these factors, uncertain tax positions may decrease by as much as $15.2 million from the lapse of the statutes of limitation in various jurisdictions during the next 12 months.

The Singapore Economic Development Board (“EDB”) initially granted a 10-year Pioneer Status in July 1999 to the Company’s Singapore subsidiary. In October 2004, the Company’s subsidiary in Singapore was granted a second incentive known as the Develop and Expansion Incentive (“DEI”), and in June 2006, the EDB agreed to extend the Pioneer status for 15 years to June 2014. The Company renegotiated with the Singapore government and in fiscal 2015, they extended the DEI tax credits to the Company until June 2019. The Company renegotiated again with the Singapore government and during the second quarter of fiscal 2020, they extended the DEI tax credits to the Company until June 2024. In order to retain these tax benefits in Singapore, the Company must meet certain operating conditions relating to, among other things, maintenance of a regional headquarters function, and research and development activities in Singapore.

Under the Israeli Encouragement law of “approved or benefited enterprise,” two branches of Marvell Israel (M.I.S.L) Ltd., the GTL branch and the cellular branch (formerly Marvell DSPC), are entitled to approved and benefited tax programs that include reduced tax rates and exemption of certain income, subject to various operating and other conditions. Income from the approved or benefited enterprises, with the exception of capital gains, is eligible up to fiscal 2027.

The Company’s principal source of liquidity as of February 1, 2020 consisted of approximately $648 million of cash, cash equivalents and short-term investments, of which approximately $421 million was held by subsidiaries outside of Bermuda. The Company has not recognized a deferred tax liability on $176 million of these assets as those amounts are deemed to be indefinitely reinvested. The Company plans to use such amounts to fund various activities outside of Bermuda, including working capital requirements, capital expenditures for expansion, funding of future acquisitions or other financing activities.

Net Income (Loss) Per Share

12 Months Ended

Feb. 01, 2020

Earnings Per Share [Abstract]

Net Income (Loss) Per Share

The Company reports both basic net income (loss) per share, which is based on the weighted-average number of common shares outstanding during the period, and diluted net income (loss) per share, which is based on the weighted-average number of common shares outstanding and potentially dilutive shares outstanding during the period. The computations of basic and diluted net income (loss) per share are presented in the following table (in thousands, except per share amounts):


	Year Ended
	February 1, 2020		February 2, 2019		February 3, 2018
Numerator:
Income (loss) from continuing operations, net of tax	$	1,584,391	$	(179,094)	$	433,142
Income from discontinued operations, net of tax	—		—		87,689
Net income (loss)	$	1,584,391	$	(179,094)	$	520,831
Denominator:
Weighted-average shares — basic	664,709		591,232		498,008
Effect of dilutive securities:
Share-based awards	11,385		—		11,659
Weighted-average shares — diluted	676,094		591,232		509,667
Income (loss) from continuing operations per share:
Basic	$	2.38	$	(0.30)	$	0.87
Diluted	$	2.34	$	(0.30)	$	0.85
Income (loss) from discontinued operations per share:
Basic	$	—	$	—	$	0.18
Diluted	$	—	$	—	$	0.17
Net income (loss) per share:
Basic	$	2.38	$	(0.30)	$	1.05
Diluted	$	2.34	$	(0.30)	$	1.02

Potential dilutive securities include dilutive common shares from share-based awards attributable to the assumed exercise of stock options, restricted stock units and employee stock purchase plan shares using the treasury stock method. Under the treasury stock method, potential common shares outstanding are not included in the computation of diluted net income per share, if their effect is anti-dilutive.

Anti-dilutive potential shares are presented in the following table (in thousands):

Year Ended

February 1,
2020

February 2,
2019

February 3,
2018

Weighted-average shares outstanding:

Share-based awards

1,124

20,435

412

Anti-dilutive potential shares from share-based awards are excluded from the calculation of diluted earnings per share for all periods reported above because either their exercise price exceeded the average market price during the period or the share-based awards were determined to be anti-dilutive based on applying the treasury stock method. Anti-dilutive potential shares from share-based awards are also excluded from the calculation of diluted earnings per share for the year ended February 2, 2019 due to the net loss reported in that period.

Segment and Geographic Information

12 Months Ended

Feb. 01, 2020

Segment Reporting [Abstract]

Segment and Geographic Information

The Company operates in one reportable segment — the design, development and sale of integrated circuits. The chief executive officer was identified as the chief operating decision maker (“CODM”) and is ultimately responsible for and actively involved in the allocation of resources and the assessment of the Company’s performance. The fact that the Company operates in only one reportable segment is based on the following:

•The Company uses a highly-integrated approach in developing its products in that discrete technologies developed by the Company are frequently integrated across many of its products. Substantially all of the Company’s integrated circuits are manufactured under similar manufacturing processes.

•The Company’s organizational structure is based along functional lines. Each of the functional department heads reports directly to the CODM. Shared resources in the Company also report directly to the CODM or to a direct report of the CODM.

•The assessments of performance across the Company, including assessment of the Company’s incentive compensation plan, are based largely on operational performance and consolidated financial performance.

•The decisions on allocation of resources and other operational decisions are made by the CODM based on his direct involvement with the Company’s operations and product development.

The following table presents long-lived asset information based on the physical location of the assets by geographic region (in thousands):


	February 1, 2020		February 2, 2019
Property and equipment, net:
United States	$	265,685	$	228,744
Singapore	37,717		21,929
India	20,815		15,322
Israel	15,808		18,754
China	11,979		9,950
Others	5,088		24,279
	$	357,092	$	318,978

SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS

12 Months Ended

Feb. 01, 2020

SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract]

SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS

SCHEDULE II

VALUATION AND QUALIFYING ACCOUNTS

(in thousands)


	Balance at Beginning of Year		Additions		Deductions		Balance at End of Year
Fiscal year ended February 1, 2020
Allowance for doubtful accounts (1)	$	2,637	$	3,448	$	(3,959)	$	2,126
Deferred tax asset valuation allowance	$	597,829	$	78,951	$	—	$	676,780
Fiscal year ended February 2, 2019
Allowance for doubtful accounts (1)	$	984	$	1,653	$	—	$	2,637
Deferred tax asset valuation allowance	$	618,353	$	—	$	(20,524)	$	597,829
Fiscal year ended February 3, 2018
Allowance for doubtful accounts and sales return reserve	$	1,384	$	2,352	$	(1,236)	$	2,500
Deferred tax asset valuation allowance	$	456,541	$	161,812	$	—	$	618,353

(1) Beginning in fiscal 2019 upon the adoption of the new revenue recognition standard, the sales return reserve is included as a component of contract liabilities within accrued liabilities in the accompanying consolidated balance sheet. The additions and deductions to contract liabilities during fiscal 2020 is disclosed in “Note 8 - Revenue” in the accompanying notes to the consolidated financial statements.

Significant Accounting Policies (Policies)

12 Months Ended

Feb. 01, 2020

Accounting Policies [Abstract]

Basis of Presentation

Basis of PresentationThe Company’s fiscal year is the 52- or 53-week period ending on the Saturday closest to January 31. Accordingly, every fifth or sixth fiscal year will have a 53-week period. The additional week in a 53-week year is added to the fourth quarter, making such quarter consist of 14 weeks. Fiscal 2020 and fiscal 2019 each had a 52-week period, while fiscal 2018 had a 53-week period. Certain prior period amounts have been reclassified to conform to current year presentation.

Use of Estimates

Principles of Consolidation

Discontinued Operations

Discontinued OperationsIn connection with the plan the Company announced in November 2016 to restructure its operations to refocus its research and development, increase operational efficiency and improve profitability, the Company also planned to divest certain businesses. As of February 1, 2020, three businesses were divested and are classified as discontinued operations (see “Note 5 - Discontinued Operations”). The Company has not segregated the cash flows of these businesses in the consolidated statements of cash flows. Unless noted otherwise, discussion in the Notes to Consolidated Financial Statements refers to the Company’s continuing operations.

Cash and Cash Equivalents

Investments

Impairment of Investments

•the Company has the intent to sell the security;

•it is more likely than not that the Company will be required to sell the security before recovery of its amortized cost base; or

•a credit loss exists insofar as the Company does not expect to recover the entire recognized amortized cost of the security.

Concentration of Credit Risk and Significant Customers


	Year Ended
	February 1, 2020		February 2, 2019		February 3, 2018
Customer:

Western Digital	*		12	%	20	%
Toshiba **	*		11	%	14	%
Seagate	*		10	%	11	%
Distributor:
Wintech	12	%	*		10	%

* Less than 10% of net ** The percentage of net revenue reported for Toshiba for fiscal year 2019 excludes net revenue of Toshiba Memory Corporation after Toshiba divested Toshiba Memory Corporation during fiscal year 2019.

Inventories

Property and Equipment, Net

Goodwill

Long-Lived Assets and Intangible Assets

Leases

Leases The Company determines if an arrangement is a lease at inception. Operating lease right-of-use (“ROU”) assets and liabilities are recognized at commencement date based on the present value of lease payments over the lease term. Operating lease ROU assets also include any initial direct costs and prepayments less lease incentives. Lease terms may include options to extend or terminate the lease when it is reasonably certain that the Company will exercise such options. As the Company's leases do not provide an implicit rate, the Company uses its collateralized incremental borrowing rate based on the information available at the lease commencement date, including lease term, in determining the present value of lease payments. Lease expense for these leases is recognized on a straight line basis over the lease term.

Foreign Currency Transactions

Revenue Recognition

Business Combination

Business Combinations

Advertising Expense

Advertising ExpenseAdvertising costs are expensed as incurred.

Share-Based Compensation

The fair value of each restricted stock unit is estimated based on the market price of the Company’s common shares on the date of grant less the expected dividend yield.

Forfeitures are recorded when they occur. Previously recognized expense is reversed for the portion of awards forfeited prior to vesting as and when forfeitures occur.

Comprehensive Income (Loss)

Comprehensive Income (Loss)Comprehensive income (loss), net of tax is comprised of net income and net change in unrealized gains and losses, on available-for-sale securities and cash flow hedges.

Accounting for Income Taxes

Recent Accounting Pronouncements

Accounting Pronouncements Recently Adopted

Accounting Pronouncements Not Yet Effective

Significant Accounting Policies (Tables)

12 Months Ended

Feb. 01, 2020

Accounting Policies [Abstract]

Schedule of Net Revenue Attributable to Significant Customers

Net revenue attributable to significant customers whose revenues as a percentage of net revenue was 10% or greater of total net revenues is presented in the following table:


	Year Ended
	February 1, 2020		February 2, 2019		February 3, 2018
Customer:

Western Digital	*		12	%	20	%
Toshiba **	*		11	%	14	%
Seagate	*		10	%	11	%
Distributor:
Wintech	12	%	*		10	%

* Less than 10% of net ** The percentage of net revenue reported for Toshiba for fiscal year 2019 excludes net revenue of Toshiba Memory Corporation after Toshiba divested Toshiba Memory Corporation during fiscal year 2019.

Business Combinations (Tables)

12 Months Ended

Feb. 01, 2020

Business Combinations [Abstract]

Purchase Price Allocation

The purchase price allocation is as follows (in thousands):


Inventories	$	106,465
Prepaid expenses and other current assets	17,495
Property and equipment, net	25,677
Acquired intangible assets, net	379,000
Other non-current assets	6,870
Goodwill	129,392
Accrued liabilities	(64,155)
Deferred tax liabilities	(6,594)
Other non-current liabilities	(650)
	$	593,500

The purchase price allocation is as follows (in thousands):



Cash and short-term investments	$	27,914
Inventory	33,900
Goodwill	227,594
Acquired intangible assets	193,000
Other non-current assets	35,123
Accrued liabilities	(21,813)
Other, net	6,471
	$	502,189

The purchase price allocation is as follows (in thousands):


Cash and cash equivalents	$	180,989
Accounts receivable	112,270
Inventories	330,778
Prepaid expense and other current assets	19,890
Assets held for sale	483
Property and equipment	115,428
Acquired intangible assets	2,744,000
Other non-current assets	89,139
Goodwill	3,498,196
Accounts payable	(52,383)
Accrued liabilities	(126,007)
Accrued employee compensation	(34,813)
Deferred income	(2,466)
Current portion of long-term debt	(6,123)
Liabilities held for sale	(3,032)
Long-term debt	(600,005)
Non-current income taxes payable	(8,454)
Deferred tax liabilities	(79,995)
Other non-current liabilities	(16,099)
Total merger consideration	$	6,161,796

Summary of Total Merger Consideration

The following table summarizes the total merger consideration (in thousands):


Cash consideration to Aquantia common stockholders	$	479,547
Cash consideration - director, employee & consultant grant accelerations and payout for employee stock purchase plan	7,122
Stock consideration for replacement equity awards attributable to pre-combination service	15,520
Total merger consideration	$	502,189

The following table summarizes the total merger consideration (in thousands, except share and per share data):


Cash consideration to Cavium common stockholders	$	2,819,812
Common stock (153,376,408 shares of the Company's common stock at $21.34 per share)	3,273,053
Cash consideration for intrinsic value of vested director stock options and employee accelerated awards attributable to pre-acquisition service	10,642
Stock consideration for employee accelerated awards attributable to pre-acquisition service	7,804
Fair value of the replacement equity awards attributable to pre-acquisition service	50,485
Total merger consideration	$	6,161,796

Supplemental Pro Forma Financial Information

The unaudited supplemental pro forma financial information for the periods presented is as follows (in thousands):


	Year Ended
	February 1, 2020		February 2, 2019
Pro forma net revenue	$	3,011,550	$	3,638,086
Pro forma net income	$	1,532,594	$	(334,133)

Goodwill and Acquired Intangible Assets, Net (Tables)

12 Months Ended

Feb. 01, 2020

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Acquired Finite-Lived Intangible Assets by Major Class


	Preliminary Estimated Fair Value		Weighted-Average Useful Life (Years)
Developed technology	$	353,000	5.58
IPR&D	41,000		7.39
Customer contracts and related relationships	178,000		5.21

	$	572,000


	February 2, 2019
	Gross Carrying Amounts		Accumulated Amortization and Write-Offs		Net Carrying Amounts		Weighted-average remaining amortization period (years)
Developed technologies	$	1,743,000	$	(134,167)	$	1,608,833	7.10
Customer contracts and related relationships	465,000		(45,939)		419,061		8.42
Trade names	23,000		(3,212)		19,788		3.85
Total acquired amortizable intangible assets	2,231,000		(183,318)		2,047,682		7.34
IPR&D	513,000		—		513,000		n/a
Total acquired intangible assets	$	2,744,000	$	(183,318)	$	2,560,682

Schedule of Finite-Lived Intangible Assets by Major Class

As of February 1, 2020, net carrying amounts are as follows (in thousands, except for weighted-average remaining amortization period):


	February 1, 2020
	Gross Carrying Amounts		Accumulated Amortization and Write-Offs		Net Carrying Amounts		Weighted -average remaining amortization period (years)
Developed technologies	$	2,511,000	$	(413,735)	$	2,097,265	6.41
Customer contracts and related relationships	643,000		(128,939)		514,061		6.61
Trade names	23,000		(8,726)		14,274		2.96
Total acquired amortizable intangible assets	3,177,000		(551,400)		2,625,600		6.43
IPR&D	139,000		—		139,000		n/a
Total acquired intangible assets	$	3,316,000	$	(551,400)	$	2,764,600

Schedule of Indefinite-Lived Intangible Assets

As of February 1, 2020, net carrying amounts are as follows (in thousands, except for weighted-average remaining amortization period):


	February 1, 2020
	Gross Carrying Amounts		Accumulated Amortization and Write-Offs		Net Carrying Amounts		Weighted -average remaining amortization period (years)
Developed technologies	$	2,511,000	$	(413,735)	$	2,097,265	6.41
Customer contracts and related relationships	643,000		(128,939)		514,061		6.61
Trade names	23,000		(8,726)		14,274		2.96
Total acquired amortizable intangible assets	3,177,000		(551,400)		2,625,600		6.43
IPR&D	139,000		—		139,000		n/a
Total acquired intangible assets	$	3,316,000	$	(551,400)	$	2,764,600

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense

The following table presents the estimated future amortization expense of acquired amortizable intangible assets as of February 1, 2020 (in thousands):


Fiscal Year	Amount

2021	$	451,686
2022	441,969
2023	428,891
2024	399,920
2025	354,012
Thereafter	549,122
	$	2,625,600

Discontinued Operations (Tables)

12 Months Ended

Feb. 01, 2020

Discontinued Operations and Disposal Groups [Abstract]

Major Classes of Assets and Liabilities and Results of Operations of Discontinued Operations


	Year Ended
		February 3, 2018
Net revenue		$	94,137
Cost of goods sold		47,499
Gross Profit		46,638
Operating expenses:
Research and development		34,530
Selling, general and administrative		6,925

Total operating expenses		41,455
Income from discontinued operations before income taxes		5,183
Gain from sale of discontinued operations		88,406
Provision for income taxes		5,900
Net income from discontinued operations		$	87,689

- Definition

Tabular disclosure of information related to a disposal group. Includes, but is not limited to, a discontinued operation, disposal classified as held-for-sale or disposed of by means other than sale or disposal of an individually significant component.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
-Paragraph 3A
-URI http://asc.fasb.org/extlink&oid=109226691&loc=SL51724579-110230

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
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+ Details

Restructuring and Other Related Charges (Tables)

12 Months Ended

Feb. 01, 2020

Restructuring and Related Activities [Abstract]

Summary of Restructuring and Other Related Charges

The following table presents details related to the restructuring related charges as presented in the Consolidated Statements of Operations (in thousands):


	Year Ended
	February 1, 2020		February 2, 2019		February 3, 2018
Severance and related costs	$	31,685	$	40,345	$	8,247
Facilities and related costs	3,938		35,831		1,692
Other exit-related costs	3,621		2,050		2,082
	39,244		78,226		12,021
Release of reserves:
Severance	(480)		(1,273)		(1,612)
Facilities and related costs	(893)		—		(258)
Other exit-related costs	(138)		—		(340)

Impairment and write-off of assets & restructuring (gain):
Right-of-use asset amortization and impairment	18,356		—		—
Release of facility lease liability	(1,394)		—		—
Technology licenses	—		6,523		174
Equipment and other	633		5,503		(489)
Building sale	—		(12,226)		(4,246)
	$	55,328	$	76,753	$	5,250

Reconciliation of Beginning and Ending Restructuring Liability Balances by Major Type of Costs

The following table sets forth a reconciliation of the beginning and ending restructuring liability balances by each major type of costs associated with the restructuring charges (in thousands):


	November 2016 and Other Restructuring										July 2018 Restructuring										November 2019 Restructuring
	Severance and related costs		Facilities and related costs		Other exit-related costs		Severance and related costs		Facilities and related costs		Other exit-related costs		Severance and related costs		Facilities and related costs		Other exit-related costs		Total












Balance at February 3, 2018	$	654	$	462	$	555	$	—	$	—	$	—	$	—	$	—	$	—	$	1,671
Restructuring charges	—		—		—		40,345		35,831		2,050		—		—		—		78,226
Net cash payments	(654)		(462)		(555)		(26,614)		(8,927)		(1,001)		—		—		—		(38,213)
Release of reserves	—		—		—		(1,273)		—		—		—		—		—		(1,273)
Exchange rate adjustment	—		—		—		(55)		—		—		—		—		—		(55)
Balance at February 2, 2019	—		—		—		12,403		26,904		1,049		—		—		—		40,356
Restructuring charges	—		—		—		16,698		3,713		3,429		14,987		225		192		39,244
Net cash payments	—		—		—		(27,706)		(3,374)		(3,804)		(2,674)		(29)		(181)		(37,768)
Release of reserve	—		—		—		(479)		(893)		(138)		(1)		—		—		(1,511)
Effect of adoption of new lease standard	—		—		—		—		(25,893)		—		—		—		—		(25,893)
Balance at February 1, 2020	—		—		—		916		457		536		12,312		196		11		14,428
Less: non-current portion	—		—		—		—		126		—		—		—		—		126
Current portion	$	—	$	—	$	—	$	916	$	331	$	536	$	12,312	$	196	$	11	$	14,302

Leases (Tables)

12 Months Ended

Feb. 01, 2020

Leases [Abstract]

Schedule of Lease Expense and Supplemental Cash Flow Information

Lease expense and supplemental cash flow information are as follows (in thousands):


	Year Ended February 1, 2020
Operating lease expense	$	49,679
Cash paid for amounts included in the measurement of operating lease liabilities	$	33,161
Right-of-use assets obtained in exchange for lease obligation	$	28,928

Supplemental Balance Sheet Information

Supplemental balance sheet information related to leases are as follows (in thousands):


	Classification on the Condensed Consolidated Balance Sheet	February 1, 2020
Right-of-use assets	Other non-current assets	$	110,907

Current portion of lease liabilities	Accrued liabilities	28,662
Non-current portion of lease liabilities	Other non-current liabilities	115,778
Total lease liabilities		$	144,440

Maturities of Operating Lease Liabilities

The aggregate future lease payments for operating leases as of February 1, 2020 are as follows (in thousands):


Fiscal Year	Operating Leases		Sublease Income
2021	$	35,272	$	(3,420)
2022	35,753		(3,253)
2023	28,932		(3,350)
2024	19,575		(3,451)
2025	12,791		(3,554)
Thereafter	34,015		(9,364)
Total lease payments	166,338		(26,392)
Less: imputed interest	21,898
Present value of lease liabilities	$	144,440

Future Minimum Lease Payments, Net of Estimated Sublease Income Under Previous Accounting Standard


Fiscal Year	Operating Leases
2020	$	43,286
2021	29,866
2022	26,612
2023	21,272
2024	13,690
Thereafter	40,100
Total	$	174,826

Schedule of Average Lease Terms And Discount Rates

Average lease terms and discount rates were as follows:


			Year Ended February 1, 2020
Weighted-average remaining lease term (years)			5.52
Weighted-average discount rate			3.85%

Revenue (Tables)

12 Months Ended

Feb. 01, 2020

Revenue from Contract with Customer [Abstract]

Disaggregation of Revenue

The following table summarizes net revenue disaggregated by product group (in thousands, except percentages):



	Year Ended February 1, 2020		% of Total		Year Ended February 2, 2019		% of Total		Year Ended February 3, 2018		% of Total
Net revenue by product group:
Networking (1)	$	1,377,635	51	%	$	1,313,439	46	%	$	961,497	40	%
Storage (2)	1,137,766		42	%	1,376,697		48	%	1,254,365		52	%
Other (3)	183,760		7	%	175,655		6	%	193,308		8	%
	$	2,699,161			$	2,865,791			$	2,409,170

1)Networking products are comprised primarily of Ethernet Solutions, Embedded Processors and Custom ASICs.

2)Storage products are comprised primarily of Storage Controllers and Fibre Channel Adapters.

3)Other products are comprised primarily of Printer Solutions, Application Processors and others.

The following table summarizes net revenue disaggregated by primary geographical market based on destination of shipment (in thousands, except percentages):



	Year Ended February 1, 2020		% of Total		Year Ended February 2, 2019		% of Total		Year Ended February 3, 2018		% of Total
Net revenue based on destination of shipment:
China	$	1,071,028	40	%	$	1,189,928	42	%	$	1,205,202	50	%
United States	258,827		10	%	251,905		9	%	42,560		2	%
Thailand	230,218		9	%	165,923		6	%	137,662		6	%
Malaysia	226,358		8	%	372,817		13	%	388,469		16	%
Philippines	221,566		8	%	235,921		8	%	270,101		11	%
Others	691,164		25	%	649,297		22	%	365,176		15	%
	$	2,699,161			$	2,865,791			$	2,409,170

The following table summarizes net revenue disaggregated by customer type (in thousands, except percentages):



	Year Ended February 1, 2020		% of Total		Year Ended February 2, 2019		% of Total		Year Ended February 3, 2018		% of Total
Net revenue by customer type:
Direct customers	$	2,041,089	76	%	$	2,197,209	77	%	$	1,888,108	78	%
Distributors	658,072		24	%	668,582		23	%	521,062		22	%
	$	2,699,161			$	2,865,791			$	2,409,170

Supplemental Financial Information (Tables)

12 Months Ended

Feb. 01, 2020

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Schedule of Cash and Cash Equivalents


	February 1, 2020		February 2, 2019
Cash and cash equivalents:
Cash	$	513,072	$	491,646
Cash equivalents:
Money market funds	46,355		16,829
Time deposits	88,177		73,935




Cash and cash equivalents	$	647,604	$	582,410

Schedule of Provision for Sales Returns and Allowances


	February 1, 2020		February 2, 2019
Accounts receivable, net:
Doubtful accounts	$	2,126	$	2,637

Schedule of Inventories


	February 1, 2020		February 2, 2019
Inventories:
Work-in-process	$	216,496	$	162,384
Finished goods	106,484		113,621
Inventories	$	322,980	$	276,005

Schedule of Property and Equipment, Net


	February 1, 2020		February 2, 2019
Property and equipment, net:
Machinery and equipment	$	686,351	$	615,329
Land, buildings, and leasehold improvements	285,084		287,047
Computer software	100,613		105,539
Furniture and fixtures	24,582		23,924
	1,096,630		1,031,839
Less: Accumulated depreciation	(739,538)		(712,861)
Property and equipment, net	$	357,092	$	318,978

Schedule of Other Non-current Assets


	February 1, 2020		February 2, 2019
Other non-current assets:

Technology and other licenses	$	277,634	$	125,278
Operating right-of-use assets	110,907		—
Prepaid ship and debit (1)	75,362		75,079

Other	32,947		34,512
Other non-current assets	$	496,850	$	234,869

Schedule of Accrued Liabilities


	February 1, 2020		February 2, 2019
Accrued liabilities:
Contract liabilities	$	111,486	$	142,378
Technology license obligations	71,623		48,018

Deferred non-recurring engineering credits	51,109		13,440
Lease liabilities - current	28,662		—
Accrued restructuring	14,302		26,702
Accrued royalty	10,927		11,438
Accrued income tax payable	6,133		47,079
Other	52,397		46,454
Accrued liabilities	$	346,639	$	335,509

Schedule of Other Non-current Liabilities


	February 1, 2020		February 2, 2019
Other non-current liabilities:
Lease liabilities - non current	$	115,778	$	—
Technology license obligations	107,893		6,716
Non-current income taxes payable	37,983		59,221
Long-term restructuring liabilities	126		13,654
Other	12,452		15,004
Other non-current liabilities	$	274,232	$	94,595

Schedule of Changes in Accumulated Other Comprehensive Income (Loss)

The changes in accumulated other comprehensive income (loss) by components are presented in the following tables (in thousands):


	Unrealized Gain (Loss) on Marketable Securities (1)		Unrealized Gain (Loss) on Cash Flow Hedges (2)		Total
Balance at February 3, 2018	$	(2,322)	$	—	$	(2,322)
Other comprehensive income (loss) before reclassifications	(733)		—		(733)
Amounts reclassified from accumulated other comprehensive income (loss)	3,055		—		3,055
Net current-period other comprehensive loss, net of tax	2,322		—		2,322
Balance at February 2, 2019	—		—		—
Other comprehensive loss before reclassifications	—		(37)		(37)
Amounts reclassified from accumulated other comprehensive income (loss)	—		37		37
Net current-period other comprehensive income, net of tax	—		—		—
Balance at February 1, 2020	$	—	$	—	$	—

Schedule of Other Income


	Year Ended
	February 1, 2020		February 2, 2019		February 3, 2018
Other income, net:

Gain on sale of business (1)	$	1,121,709	$	—	$	5,254
Net realized loss on investments	—		(3,066)		(2,777)
Currency remeasurement loss	(2,817)		(2,625)		(28)
Other income	3,663		6,210		2,364

Other Income, net	$	1,122,555	$	519	$	4,813

Schedule of Supplemental Cash Flow Information


	Year Ended
	February 1, 2020		February 2, 2019		February 3, 2018
Supplemental cash flow information:
Cash paid for interest	$	76,506	$	39,156	$	746
Cash paid for income taxes, net	$	117,529	$	8,143	$	11,401
Non-Cash Investing and Financing Activities:
Non-cash consideration paid for the acquisition	$	15,520	$	3,331,342	$	—
Purchase of software and intellectual property under license obligations	$	193,149	$	4,221	$	59,803

Unsettled trade payable of available-for-sale securities	$	—	$	—	$	4,497
Unpaid purchase of property and equipment at end of year	$	23,015	$	8,837	$	5,595

Unpaid equity and debt financing costs	$	—	$	—	$	3,244

Investments (Tables)

12 Months Ended

Feb. 01, 2020

Investments, Debt and Equity Securities [Abstract]

Gross Realized Gains and Losses on Sales of Available-for-Sale Securities

Gross realized gains and gross realized losses on sales of available-for-sale securities are presented in the following table (in thousands):


	Year Ended
	February 1, 2020		February 2, 2019		February 3, 2018
Gross realized gains	$	14	$	371	$	186
Gross realized losses	(6)		(3,437)		(2,963)

Total net realized gains (losses)	$	8	$	(3,066)	$	(2,777)

Fair Value Measurements (Tables)

12 Months Ended

Feb. 01, 2020

Fair Value Disclosures [Abstract]

Fair Value, Assets and Liabilities Measured on Recurring Basis


	Fair Value Measurements at February 1, 2020
	Level 1		Level 2		Level 3		Total
Items measured at fair value on a recurring basis:
Assets
Cash equivalents:
Money market funds	$	46,355	$	—	$	—	$	46,355
Time deposits	—		88,177		—		88,177















Other non-current assets:
Severance pay fund	—		693		—		693
Total assets	$	46,355	$	88,870	$	—	$	135,225


	Fair Value Measurements at February 2, 2019
	Level 1		Level 2		Level 3		Total
Items measured at fair value on a recurring basis:
Assets
Cash equivalents:
Money market funds	$	16,829	$	—	$	—	$	16,829
Time deposits	—		73,935		—		73,935















Other non-current assets:
Severance pay fund	—		727		—		727
Total assets	$	16,829	$	74,662	$	—	$	91,491

Debt (Tables)

12 Months Ended

Feb. 01, 2020

Debt Disclosure [Abstract]

Summary of Outstanding Debt

The following table summarizes the Company's outstanding debt at February 1, 2020 (in thousands):


	February 1, 2020		February 2, 2019
Face Value Outstanding:
Term Loan	$	450,000	$	750,000
2023 Notes	500,000		500,000
2028 Notes	500,000		500,000
Total borrowings	1,450,000		1,750,000
Less: Unamortized debt discount and issuance cost	(10,976)		(17,301)
Net carrying amount of debt	1,439,024		1,732,699
Less: Current portion	—		—
Non-current portion	$	1,439,024	$	1,732,699

Aggregate Future Contractual Maturities of Debt

As of February 1, 2020, the aggregate future contractual maturities of the Company's outstanding debt, at face value, were as follows (in thousands):


Fiscal Year	Amount

2021	$	—
2022	450,000
2023	—
2024	500,000
2025	—
Thereafter	500,000
Total	$	1,450,000

Commitments and Contingencies (Tables)

12 Months Ended

Feb. 01, 2020

Commitments and Contingencies Disclosure [Abstract]

Future Minimum Lease Payments Under Technology License Obligations

Future payments under technology license obligations as of February 1, 2020, are presented in the following tables (in thousands):


Fiscal Year	Technology License Obligations
2021	$	83,746
2022	70,659
2023	40,084
2024	29,309
2025	309
Thereafter	309
Total future minimum payments	224,416
Less: amount representing interest	(8,843)
Present value of future minimum payments	215,573
Less: current portion	(71,623)
Non-current portion	$	143,950

Shareholders’ Equity (Tables)

12 Months Ended

Feb. 01, 2020

Equity [Abstract]

Schedule of Repurchases

A summary of the stock repurchase activity under the stock repurchase program, reported based on the trade date, is summarized as follows (in thousands, except per-share amounts):


	Shares Repurchased	Weighted- Average Price per Share		Amount Repurchased


Cumulative balance at January 28, 2017	254,904	$	12.75	$	3,250,481
Repurchase of common stock under the stock repurchase program (1)	31,460	$	16.72	526,075
Cumulative balance at February 3, 2018	286,365	$	13.19	3,776,557
Repurchase of common stock under the stock repurchase program (2)	6,041	$	17.21	103,974
Cumulative balance at February 2, 2019	292,406	$	13.27	3,880,531
Repurchase of common stock under the stock repurchase program (3)	14,486	$	25.15	364,272
Cumulative balance at February 1, 2020	306,892	$	13.83	$	4,244,803

(1) There were no stock repurchases pending settlement as of February 3, 2018.

(2) There were no stock repurchases pending settlement as of February 2, 2019.

(3) There were no stock repurchases pending settlement as of February 1, 2020.

Employee Benefit Plans (Tables)

12 Months Ended

Feb. 01, 2020

Share-based Payment Arrangement [Abstract]

Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs

The following table summarizes share-based compensation expense (in thousands):


	Year Ended
	February 1, 2020		February 2, 2019		February 3, 2018
Continuing operations:
Cost of goods sold	$	13,759	$	12,024	$	6,646
Research and development	157,054		108,762		52,127
Selling, general and administrative	71,996		77,309		26,349
Share-based compensation - continuing operations	$	242,809	$	198,095	$	85,122
Discontinued operations:
Cost of goods sold	—		—		(11)
Research and development	—		—		1,458
Selling, general and administrative	—		—		120
Share-based compensation - discontinued operations	—		—		1,567
Total share-based compensation	$	242,809	$	198,095	$	86,689

Schedule of Nonvested Share Activity

A summary of restricted stock unit activity, which includes time-based and performance-based or market-based restricted stock units, is as follows (in thousands, except per-share amounts):


	Time-Based					Performance-Based								Market-Based			Total
	Number of Shares	Weighted- Average Grant Date Fair Value		Number of Shares			Weighted- Average Grant Date Fair Value		Number of Shares		Weighted- Average Grant Date Fair Value		Number of Shares		Weighted- Average Grant Date Fair Value




Balance at January 28, 2017	9,925	$	10.52	313			$	13.91	559		$	11.80	10,797		$	10.69
Granted	8,154	$	15.33	406	[1]		$	14.49	409	[1]	$	15.14	8,969		$	15.28
Vested	(5,653)	$	10.86	—			$	—	—		$	—	(5,653)		$	10.86
Canceled/Forfeited	(2,137)	$	11.95	(47)			$	13.99	(47)		$	14.71	(2,231)		$	12.05
Balance at February 3, 2018	10,289	$	13.84	672			$	14.25	921		$	13.14	11,882		$	13.81
Assumed upon acquisition [4]	13,289	$	21.02	—			$	—	—		$	—	13,289		$	21.02
Granted	7,453	$	19.95	340	[1]		$	21.12	351	[1]	$	21.36	8,144		$	20.06
Vested	(8,827)	$	16.30	—			$	—	(30)		$	13.08	(8,857)		$	16.28
Canceled/Forfeited	(3,159)	$	19.64	(64)			$	16.29	(64)		$	16.52	(3,287)		$	19.51
Balance at February 2, 2019	19,045	$	19.15	948			$	16.58	1,178		$	15.40	21,171		$	18.82
Assumed upon acquisition [4]	1,341	$	25.61	—			$	—	—		$	—	1,341		$	25.61
Granted	9,340	$	23.36	288	[2]		$	13.90	3,621	[3]	$	15.39	13,249		$	20.98
Vested	(10,781)	$	20.01	(576)			$	13.90	(713)		$	11.62	(12,070)		$	19.23
Canceled/Forfeited	(3,661)	$	20.57	(149)			$	17.86	(173)		$	21.12	(3,983)		$	20.49
Balance at February 1, 2020	15,284	$	21.34	511			$	17.71	3,913		$	15.83	19,708		$	20.15

[2] Amount represents the number of restricted stock unit goal shares.

[3] Amount represents the target number of restricted stock units at grant date, including 824 TSR RSU shares and 2,797 VCA RSU shares.

[4] See “Note 3 - Business Combinations” for additional information.

Schedule of Stock Option Activity

Stock option activity under the Company’s stock option and stock incentive plans is included in the following table (in thousands, except for per share amounts):



	Number of Shares	Weighted- Average Exercise Price








Balance at January 28, 2017	25,096	$	12.61
Granted	—	$	—
Exercised	(10,305)	$	12.38
Canceled/Forfeited	(3,019)	$	14.33
Balance at February 3, 2018	11,772	$	12.36
Assumed upon acquisition*	3,026	$	11.85
Granted	—	$	—
Exercised	(4,812)	$	10.93
Canceled/Forfeited	(362)	$	13.64
Balance at February 2, 2019	9,624	$	12.87
Assumed upon acquisition*	808	$	9.20
Granted	—	$	—
Exercised	(6,178)	$	12.67
Canceled/Forfeited	(37)	$	13.57
Balance at February 1, 2020	4,217	$	12.44
Vested or expected to vest at February 1, 2020	4,217

* See “Note 3 - Business Combinations” for more information.

Schedule of Outstanding Options and Exercisable Options Information, by Range of Exercise Prices

Outstanding options and exercisable options information by range of exercise prices as of February 1, 2020 was as follows:


					Outstanding Options							Exercisable Options
Range of Exercise Prices					Number of Shares (in thousands)	Weighted- Average Remaining Contractual Term (in years)		Weighted- Average Exercise Price	Number of Shares (in thousands)		Weighted- Average Exercise Price
$	3.89	$	10.31	678	5.26	$	8.06	654	$	8.03
$	10.76	$	10.76	1,272	3.23	$	10.76	1,272	$	10.76
$	10.89	$	14.35	1,145	5.10	$	13.65	1,062	$	13.65
$	14.45	$	15.87	966	3.57	$	15.58	965	$	15.58
$	15.91	$	22.27	156	4.20	$	16.99	129	$	16.91
Total				4,217	4.18	$	12.44	4,082	$	12.41

Weighted Average Assumptions Used to Calculate Fair Value Awards


	Year Ended
	February 1, 2020			February 2, 2019			February 3, 2018
Employee Stock Purchase Plan:
Estimated fair value	$	7.06		$	4.91		$	6.03
Expected volatility	35		%	33		%	30		%
Expected term (in years)	1.2			1.2			1.2
Risk-free interest rate	1.8		%	2.6		%	1.6		%
Expected dividend yield	1.0		%	1.4		%	1.1		%


	Year Ended
	February 1, 2020		February 2, 2019		February 3, 2018
Total Shareholder Return Awards:
Expected term (in years)	3.0		2.9		2.9
Expected volatility	32	%	35	%	35	%
Average correlation coefficient of peer companies	0.5		0.5		0.5
Risk-free interest rate	2.4	%	2.5	%	1.4	%
Expected dividend yield	1.0	%	1.1	%	1.6	%

The following weighted-average assumptions were used for estimating the fair value of common shares to be issued under VCA RSUs on the date of grant using the Monte Carlo pricing model:


	Year Ended
	February 1, 2020
Value Creation Awards:
Expected term (in years)	4.66
Expected volatility	35	%

Risk-free interest rate	1.8	%
Expected dividend yield	1.0	%

Income Taxes (Tables)

12 Months Ended

Feb. 01, 2020

Income Tax Disclosure [Abstract]

Schedule of US and non US Components of Income Before Income Tax Expense (Benefit)

The U.S. and non-U.S. components of income (loss) from continuing operations before income taxes consist of the following (in thousands):


	Year Ended
	February 1, 2020		February 2, 2019		February 3, 2018
U.S. operations	$	(95,884)	$	666,508	$	24,377
Non-U.S. operations	894,267		(671,155)		426,827
	$	798,383	$	(4,647)	$	451,204

Schedule of Provision (Benefit) for Income Taxes

The provision (benefit) for income taxes consists of the following (in thousands):


	Year Ended
	February 1, 2020		February 2, 2019		February 3, 2018
Current income tax provision (benefit):
Federal	$	5,223	$	46,519	$	776
State	(1,937)		5,959		2
Foreign	(4,137)		3,322		(2,541)
Total current income tax provision (benefit)	(851)		55,800		(1,763)
Deferred income tax provision (benefit):
Federal	(125,892)		134,336		10,136
State	(9,382)		(6,567)		83
Foreign	(649,884)		(9,122)		9,606
Total deferred income tax provision (benefit)	(785,158)		118,647		19,825
Total provision (benefit) for income taxes	$	(786,009)	$	174,447	$	18,062

Reconciliation Between the Provision (Benefit) for Income Taxes at the Statutory Rate and the Effective Tax Rate

For purposes of the reconciliation between the provision (benefit) for income taxes at the statutory rate and the effective tax rate, a U.S. statutory tax rate of 21% for fiscal years 2020 and 2019, and a notional rate of 33.7% for fiscal 2018 is applied as follows:


	Year Ended
	February 1, 2020		February 2, 2019		February 3, 2018

Provision at U.S. statutory rate	$	167,660	$	(976)	$	152,134
State taxes, net of federal benefit	(9,878)		(9,652)		—
Difference in U.S. and non-U.S. tax rates	(181,625)		46,988		(137,419)
Foreign income inclusion in U.S.	13,736		167,093		—
Non-deductible compensation	6,196		13,215		—
Intellectual property transaction	(762,933)		93,777		—
Federal research and development credits	(42,604)		(29,503)		(21,620)
Uncertain tax positions	(3,913)		4,238		—
Change in valuation allowance	26,971		(110,921)		21,339
Other	381		188		3,628
Income tax provision (benefit)	$	(786,009)	$	174,447	$	18,062

Schedule of Deferred Tax Assets and Liabilities

Deferred tax assets consist of the following (in thousands):


	February 1, 2020		February 2, 2019
Deferred tax assets:
Net operating losses	$	105,925	$	134,598
Federal and California income tax credits	631,805		557,333
Intangible assets	632,537		—
Reserves and accruals	22,719		18,404
Share-based compensation	4,117		5,213
Lease liabilities	32,120		—
Gross deferred tax assets	1,429,223		715,548
Valuation allowance	(676,780)		(597,829)
Total deferred tax assets	752,443		117,719
Deferred tax liabilities:
Intangible assets	(69,771)		(185,973)
Fixed assets	(27,540)		(13,370)
Unremitted earnings of non-U.S. subsidiaries	(21,284)		(52,828)
Royalty income	—		(99,340)
Right of use assets	(25,290)		—
Total deferred tax liabilities	(143,885)		(351,511)
Net deferred tax assets (liabilities)	$	608,558	$	(233,792)

The deferred tax assets and liabilities based on tax jurisdictions are presented on our Consolidated Balance Sheet as follows:


	February 1, 2020		February 2, 2019
Non-current deferred tax assets	$	639,791	$	12,460
Non-current deferred tax liabilities	(31,233)		(246,252)
Net deferred tax assets (liabilities)	$	608,558	$	(233,792)

Unrecognized Tax Benefits Reconciliation

The following table reflects changes in the unrecognized tax benefits (in thousands):


	Year Ended
	February 1, 2020		February 2, 2019		February 3, 2018
Unrecognized tax benefits as of the beginning of the period	$	158,323	$	23,252	$	23,793
Increases related to acquired tax positions	9,215		131,631		—
Increases related to prior year tax positions	1,789		1,836		—
Decreases related to prior year tax positions	(6,747)		(6,259)		—
Increases related to current year tax positions	7,614		11,154		2,776

Settlements	(443)		—		—
Lapse in the statute of limitations	(4,044)		(3,198)		(3,341)
Foreign exchange (gain) loss	1,121		(93)		24
Gross amounts of unrecognized tax benefits as of the end of the period	$	166,828	$	158,323	$	23,252

Net Income (Loss) Per Share (Tables)

12 Months Ended

Feb. 01, 2020

Earnings Per Share [Abstract]

Schedule of Computation of Basic and Diluted Net Income (Loss) Per Share

The computations of basic and diluted net income (loss) per share are presented in the following table (in thousands, except per share amounts):


	Year Ended
	February 1, 2020		February 2, 2019		February 3, 2018
Numerator:
Income (loss) from continuing operations, net of tax	$	1,584,391	$	(179,094)	$	433,142
Income from discontinued operations, net of tax	—		—		87,689
Net income (loss)	$	1,584,391	$	(179,094)	$	520,831
Denominator:
Weighted-average shares — basic	664,709		591,232		498,008
Effect of dilutive securities:
Share-based awards	11,385		—		11,659
Weighted-average shares — diluted	676,094		591,232		509,667
Income (loss) from continuing operations per share:
Basic	$	2.38	$	(0.30)	$	0.87
Diluted	$	2.34	$	(0.30)	$	0.85
Income (loss) from discontinued operations per share:
Basic	$	—	$	—	$	0.18
Diluted	$	—	$	—	$	0.17
Net income (loss) per share:
Basic	$	2.38	$	(0.30)	$	1.05
Diluted	$	2.34	$	(0.30)	$	1.02

Schedule of Anti-dilutive Potential Shares

Anti-dilutive potential shares are presented in the following table (in thousands):

Year Ended

February 1,
2020

February 2,
2019

February 3,
2018

Weighted-average shares outstanding:

Share-based awards

1,124

20,435

412

Segment and Geographic Information (Tables)

12 Months Ended

Feb. 01, 2020

Segment Reporting [Abstract]

Long-Lived Asset Information Based on Geographic Region

The following table presents long-lived asset information based on the physical location of the assets by geographic region (in thousands):


	February 1, 2020		February 2, 2019
Property and equipment, net:
United States	$	265,685	$	228,744
Singapore	37,717		21,929
India	20,815		15,322
Israel	15,808		18,754
China	11,979		9,950
Others	5,088		24,279
	$	357,092	$	318,978

Basis of Presentation (Details) - USD ($) $ in Thousands		12 Months Ended
Basis of Presentation (Details) - USD ($) $ in Thousands	Dec. 06, 2019	Feb. 01, 2020	Feb. 02, 2019	Feb. 03, 2018
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain on sale of business		$ 1,121,709	$ 0	$ 5,254
Tax benefit for intellectual property transfer		763,000
Deferred tax asset related to tax basis in intellectual property		659,000
Reversal of intangible assets, deferred tax liability		$ (104,000)
Wi Fi Business
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from sale of business	$ 1,700,000
Gain on sale of business	$ 1,100,000

Significant Accounting Policies - Discontinued Operations (Details)	12 Months Ended
	Feb. 01, 2020 business
Discontinued operations
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of businesses to be disposed of	3

Significant Accounting Policies - Concentration of Credit Risk and Significant Customers (Details) - Customer Concentration Risk - Accounts Receivable - Customer	12 Months Ended
	Feb. 01, 2020	Feb. 02, 2019
Concentration Risk [Line Items]
Number of customers	4
Concentration of risk percentage	38.00%	39.00%

Significant Accounting Policies - Schedule of Net Revenue Attributable to Significant Customers (Details) - Net Revenue - Customer Concentration Risk	12 Months Ended
	Feb. 01, 2020	Feb. 02, 2019	Feb. 03, 2018
Western Digital
Concentration Risk [Line Items]
Concentration of risk percentage	0.00%	12.00%	20.00%
Toshiba
Concentration Risk [Line Items]
Concentration of risk percentage	0.00%	11.00%	14.00%
Seagate
Concentration Risk [Line Items]
Concentration of risk percentage	0.00%	10.00%	11.00%
Wintech
Concentration Risk [Line Items]
Concentration of risk percentage	12.00%	0.00%	10.00%

Significant Accounting Policies - Property and Equipment, Net (Details)	12 Months Ended
	Feb. 01, 2020
Machinery and equipment \| Minimum
Property, Plant and Equipment [Line Items]
Property and equipment, estimated useful lives	2 years
Machinery and equipment \| Maximum
Property, Plant and Equipment [Line Items]
Property and equipment, estimated useful lives	7 years
Computer software \| Minimum
Property, Plant and Equipment [Line Items]
Property and equipment, estimated useful lives	3 years
Computer software \| Maximum
Property, Plant and Equipment [Line Items]
Property and equipment, estimated useful lives	4 years
Furniture and fixtures \| Minimum
Property, Plant and Equipment [Line Items]
Property and equipment, estimated useful lives	3 years
Furniture and fixtures \| Maximum
Property, Plant and Equipment [Line Items]
Property and equipment, estimated useful lives	4 years
Building
Property, Plant and Equipment [Line Items]
Property and equipment, estimated useful lives	30 years
Building improvements
Property, Plant and Equipment [Line Items]
Property and equipment, estimated useful lives	15 years

Significant Accounting Policies - Goodwill (Details)	12 Months Ended
Significant Accounting Policies - Goodwill (Details)	Feb. 01, 2020 component segment reporting_unit
Accounting Policies [Abstract]
Number of operating segments \| segment	1
Number of components \| component	2
Number of reporting units for impairment testing \| reporting_unit	1

Significant Accounting Policies - Advertising Expense (Details) - USD ($) $ in Millions	12 Months Ended
	Feb. 01, 2020	Feb. 02, 2019	Feb. 03, 2018
Accounting Policies [Abstract]
Advertising costs	$ 0.8	$ 0.2	$ 0.2

Business Combinations - Additional Information (Details) $ / shares in Units, $ in Thousands				3 Months Ended	4 Months Ended	7 Months Ended	12 Months Ended
	Nov. 05, 2019 USD ($)	Sep. 19, 2019 USD ($) $ / shares	Jul. 06, 2018 USD ($) $ / shares	Feb. 01, 2020 USD ($)	Feb. 01, 2020 USD ($)	Feb. 02, 2019 USD ($)	Feb. 01, 2020 USD ($)	Feb. 02, 2019 USD ($)	Feb. 03, 2018 USD ($)
Business Acquisition [Line Items]
Goodwill				$ 5,337,405	$ 5,337,405	$ 5,494,505	$ 5,337,405	$ 5,494,505
Equity issuance costs								2,927
Share-based compensation expense							242,809	198,095	$ 86,689
Avera
Business Acquisition [Line Items]
Cash consideration	$ 593,500
Contingent consideration	90,000
Goodwill	$ 129,392
Avera \| Selling, general and administrative
Business Acquisition [Line Items]
Acquisition related costs				5,700
Aquantia
Business Acquisition [Line Items]
Cash consideration		$ 479,547
Cash consideration (in usd per share) \| $ / shares		$ 13.25
Goodwill		$ 227,594
Aquantia \| Selling, general and administrative
Business Acquisition [Line Items]
Acquisition related costs					5,300
Cavium
Business Acquisition [Line Items]
Cash consideration			$ 2,819,812
Cash consideration (in usd per share) \| $ / shares			$ 40.00
Number of common shares per Cavium share			2.1757
Goodwill			$ 3,500,000	$ 3,498,196	$ 3,498,196		$ 3,498,196
Debt financing costs						22,800		22,800
Equity issuance costs						2,900
Cavium \| Selling, general and administrative
Business Acquisition [Line Items]
Acquisition related costs						$ 53,700
Aquantia and Avera \| Pro Forma
Business Acquisition [Line Items]
Acquisition related costs								18,600
Adjustment to inventories								73,100
Share-based compensation expense								$ 3,500

Business Combinations - Purchase Price Allocation (Details) - USD ($) $ in Thousands	Feb. 01, 2020	Nov. 05, 2019	Sep. 19, 2019	Feb. 02, 2019	Jul. 06, 2018
Business Acquisition [Line Items]
Goodwill	$ 5,337,405			$ 5,494,505
Avera
Business Acquisition [Line Items]
Inventory		$ 106,465
Prepaid expenses and other current assets		17,495
Property and equipment, net		25,677
Acquired intangible assets		379,000
Other non-current assets		6,870
Goodwill		129,392
Accrued liabilities		(64,155)
Deferred tax liabilities		(6,594)
Other non-current liabilities		(650)
Total merger consideration		$ 593,500
Aquantia
Business Acquisition [Line Items]
Inventory			$ 33,900
Acquired intangible assets			193,000
Other non-current assets			35,123
Goodwill			227,594
Cash and short-term investments			27,914
Accrued liabilities			(21,813)
Other, net			6,471
Total merger consideration			$ 502,189
Cavium
Business Acquisition [Line Items]
Inventory	330,778
Prepaid expenses and other current assets	19,890
Property and equipment, net	115,428
Acquired intangible assets	2,744,000			$ 2,700,000
Other non-current assets	89,139
Goodwill	3,498,196				$ 3,500,000
Cash and cash equivalents	180,989
Accounts receivable	112,270
Assets held for sale	483
Accrued liabilities	(126,007)
Deferred tax liabilities	(79,995)
Other non-current liabilities	(16,099)
Accounts payable	(52,383)
Accrued employee compensation	(34,813)
Deferred income	(2,466)
Current portion of long-term debt	(6,123)
Liabilities held for sale	(3,032)
Long-term debt	(600,005)
Non-current income taxes payable	(8,454)
Total merger consideration	$ 6,161,796

Business Combinations - Summary of Merger Consideration (Details) - USD ($) $ / shares in Units, $ in Thousands	Sep. 19, 2019	Jul. 06, 2018
Aquantia
Business Acquisition [Line Items]
Cash consideration to common stockholders	$ 479,547
Cash consideration - director, employee & consultant grant accelerations and payout for employee stock purchase plan	7,122
Stock consideration for replacement equity awards attributable to pre-combination service	15,520
Total merger consideration	$ 502,189
Cavium
Business Acquisition [Line Items]
Cash consideration to common stockholders		$ 2,819,812
Stock consideration for replacement equity awards attributable to pre-combination service		3,273,053
Cash consideration for intrinsic value of vested director stock options and employee accelerated awards attributable to pre-acquisition service		10,642
Stock consideration for employee accelerated awards attributable to pre-acquisition service		7,804
Fair value of the replacement equity awards attributable to pre-acquisition service		50,485
Total merger consideration		$ 6,161,796
Number of shares issued in acquisition		153,376,408
Acquisition share price (in usd per share)		$ 21.34

Business Combinations - Supplemental Pro Forma Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Feb. 01, 2020	Feb. 02, 2019
Business Combinations [Abstract]
Pro forma net revenue	$ 3,011,550	$ 3,638,086
Pro forma net income	$ 1,532,594	$ (334,133)

Goodwill and Acquired Intangible Assets, Net - Goodwill (Details)			3 Months Ended	12 Months Ended
	Dec. 06, 2019 USD ($)	Jul. 06, 2018 USD ($)	Feb. 01, 2020 USD ($)	Feb. 01, 2020 USD ($) component segment
Goodwill and Intangible Assets Disclosure [Abstract]
Divestiture of goodwill	$ 511,100,000
Goodwill acquired		$ 3,500,000,000		$ 357,000,000.0
Goodwill				$ 3,000,000.0
Number of operating segments \| segment				1
Number of components \| component				2
Number of reportable segments \| segment				1
Goodwill impairment			$ 0

Goodwill and Acquired Intangible Assets, Net - Acquired Intangible Assets, Additional Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Feb. 01, 2020	Feb. 02, 2019	Feb. 03, 2018
Finite-Lived Intangible Assets [Line Items]
Weighted average remaining amortization period	6 years 5 months 4 days
Amortization of acquired intangible assets	$ 368,082	$ 183,318	$ 3,570
IPR&D \| Minimum
Finite-Lived Intangible Assets [Line Items]
Weighted average remaining amortization period	3 years
IPR&D \| Maximum
Finite-Lived Intangible Assets [Line Items]
Weighted average remaining amortization period	10 years
Aquantia and Avera
Finite-Lived Intangible Assets [Line Items]
Acquired intangible assets	$ 572,000
Cavium
Finite-Lived Intangible Assets [Line Items]
Acquired intangible assets	$ 2,744,000	$ 2,700,000
Weighted average remaining amortization period		7 years 4 months 2 days

Goodwill and Acquired Intangible Assets, Net - Acquired Intangible Assets (Details) $ in Thousands	12 Months Ended
	Feb. 01, 2020 USD ($)
Business Acquisition [Line Items]
Weighted average remaining amortization period	6 years 5 months 4 days
Developed technologies
Business Acquisition [Line Items]
Weighted average remaining amortization period	6 years 4 months 28 days
Customer contracts and related relationships
Business Acquisition [Line Items]
Weighted average remaining amortization period	6 years 7 months 9 days
Aquantia and Avera
Business Acquisition [Line Items]
Acquired intangible assets	$ 572,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles	$ 572,000
Aquantia and Avera \| Developed technologies
Business Acquisition [Line Items]
Weighted average remaining amortization period	5 years 6 months 29 days
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles	$ 353,000
Aquantia and Avera \| IPR&D
Business Acquisition [Line Items]
Weighted average remaining amortization period	7 years 4 months 20 days
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles	$ 41,000
Aquantia and Avera \| Customer contracts and related relationships
Business Acquisition [Line Items]
Weighted average remaining amortization period	5 years 2 months 15 days
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles	$ 178,000

Goodwill and Acquired Intangible Assets, Net - Net Carrying Amounts and Weighted Average Amortization Period (Details) - USD ($) $ in Thousands	12 Months Ended
	Feb. 01, 2020	Feb. 02, 2019
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amounts	$ 3,177,000
Accumulated Amortization and Write-Offs	(551,400)
Net Carrying Amounts	$ 2,625,600
Weighted average remaining amortization period	6 years 5 months 4 days
IPR&D	$ 139,000
Gross Carrying Amounts, Total acquired intangible assets	3,316,000
Net Carrying Amounts	2,764,600	$ 2,560,682
Cavium
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amounts		2,231,000
Accumulated Amortization and Write-Offs		(183,318)
Net Carrying Amounts		$ 2,047,682
Weighted average remaining amortization period		7 years 4 months 2 days
IPR&D		$ 513,000
Gross Carrying Amounts, Total acquired intangible assets		2,744,000
Net Carrying Amounts		2,560,682
Developed technologies
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amounts	2,511,000
Accumulated Amortization and Write-Offs	(413,735)
Net Carrying Amounts	$ 2,097,265
Weighted average remaining amortization period	6 years 4 months 28 days
Developed technologies \| Cavium
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amounts		1,743,000
Accumulated Amortization and Write-Offs		(134,167)
Net Carrying Amounts		$ 1,608,833
Weighted average remaining amortization period		7 years 1 month 6 days
Customer contracts and related relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amounts	$ 643,000
Accumulated Amortization and Write-Offs	(128,939)
Net Carrying Amounts	$ 514,061
Weighted average remaining amortization period	6 years 7 months 9 days
Customer contracts and related relationships \| Cavium
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amounts		$ 465,000
Accumulated Amortization and Write-Offs		(45,939)
Net Carrying Amounts		$ 419,061
Weighted average remaining amortization period		8 years 5 months 1 day
Trade names
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amounts	$ 23,000
Accumulated Amortization and Write-Offs	(8,726)
Net Carrying Amounts	$ 14,274
Weighted average remaining amortization period	2 years 11 months 15 days
Trade names \| Cavium
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amounts		$ 23,000
Accumulated Amortization and Write-Offs		(3,212)
Net Carrying Amounts		$ 19,788
Weighted average remaining amortization period		3 years 10 months 6 days

Goodwill and Acquired Intangible Assets, Net - Future Amortization (Details) $ in Thousands	Feb. 01, 2020 USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]
2021	$ 451,686
2022	441,969
2023	428,891
2024	399,920
2025	354,012
Thereafter	549,122
Net Carrying Amounts	$ 2,625,600

Discontinued Operations - Additional Information (Details) $ in Thousands				12 Months Ended
	Sep. 08, 2017 USD ($)	May 18, 2017 USD ($)	Apr. 04, 2017 USD ($) business	Feb. 01, 2020 USD ($)	Feb. 02, 2019 USD ($)	Feb. 03, 2018 USD ($)
Business Acquisition [Line Items]
Share-based compensation				$ 242,207	$ 184,064	$ 86,689
Discontinued Operations, Disposed of by Sale
Business Acquisition [Line Items]
Pre-tax gain on sale of business						88,406
Share-based compensation						1,600
Provision for income taxes						5,900
Broadband Business \| Discontinued Operations, Disposed of by Sale
Business Acquisition [Line Items]
Number of businesses to be disposed of \| business			1
Proceeds from sale of business			$ 23,000			23,000
Pre-tax gain on sale of business			$ 8,200
LTE Business \| Discontinued Operations, Disposed of by Sale
Business Acquisition [Line Items]
Proceeds from sale of business		$ 52,900				49,200
Pre-tax gain on sale of business		34,000
Tax withholding liability paid to tax authorities		$ 3,600
Tax expense from sale of business						4,500
Multimedia Business \| Discontinued Operations, Disposed of by Sale
Business Acquisition [Line Items]
Proceeds from sale of business	$ 93,700					93,700
Pre-tax gain on sale of business	$ 46,200
Tax expense from sale of business						$ 500

Discontinued Operations - Components of Results of Operations (Details) - USD ($) $ in Thousands	12 Months Ended
	Feb. 01, 2020	Feb. 02, 2019	Feb. 03, 2018
Operating expenses:
Net income from discontinued operations	$ 0	$ 0	$ 87,689
Discontinued Operations, Disposed of by Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net revenue			94,137
Cost of goods sold			47,499
Gross Profit			46,638
Operating expenses:
Research and development			34,530
Selling, general and administrative			6,925
Total operating expenses			41,455
Income from discontinued operations before income taxes			5,183
Gain from sale of discontinued operations			88,406
Provision for income taxes			5,900
Net income from discontinued operations			$ 87,689

Restructuring and Other Related Charges - Charges Related to Restructuring Actions (Details) - USD ($) $ in Thousands	12 Months Ended
	Feb. 01, 2020	Feb. 02, 2019	Feb. 03, 2018
Restructuring and Related Activities [Abstract]
Severance and related costs	$ 31,685	$ 40,345	$ 8,247
Facilities and related costs	3,938	35,831	1,692
Other exit-related costs	3,621	2,050	2,082
Restructuring charges	39,244	78,226	12,021
Restructuring Cost and Reserve [Line Items]
Release of reserves	1,511	1,273
Impairment and write-off of assets & restructuring (gain):
Right-of-use asset amortization and impairment	18,356	0	0
Release of facility lease liability	(1,394)	0	0
Technology licenses	0	6,523	174
Restructuring and other related charges	55,328	76,753	5,250
Equipment and other
Impairment and write-off of assets & restructuring (gain):
Tangible assets	633	5,503	(489)
Building sale
Impairment and write-off of assets & restructuring (gain):
Tangible assets	0	(12,226)	(4,246)
Severance
Restructuring and Related Activities [Abstract]
Restructuring charges	31,200	39,100
Restructuring Cost and Reserve [Line Items]
Release of reserves	(480)	(1,273)	(1,612)
Facilities and related costs
Restructuring and Related Activities [Abstract]
Restructuring charges	3,000	35,800
Restructuring Cost and Reserve [Line Items]
Release of reserves	(893)	0	(258)
Other exit-related costs
Restructuring and Related Activities [Abstract]
Restructuring charges	3,500	2,000
Restructuring Cost and Reserve [Line Items]
Release of reserves	$ (138)	$ 0	$ (340)

Restructuring and Other Related Charges - Additional Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Feb. 01, 2020	Feb. 02, 2019	Feb. 03, 2018
Restructuring Cost and Reserve [Line Items]
Restructuring and other related charges	$ 55,328	$ 76,753	$ 5,250
Restructuring charges	39,244	78,226	12,021
Right-of-use asset amortization and impairment	18,356	0	0
Release of lease liability	1,394	0	0
Avera
Restructuring Cost and Reserve [Line Items]
Restructuring and other related charges	15,400
Other Acquisitions
Restructuring Cost and Reserve [Line Items]
Restructuring and other related charges	39,900
Singapore
Restructuring Cost and Reserve [Line Items]
Gain or loss recognized upon sale of equipment held for sale		12,200
Severance
Restructuring Cost and Reserve [Line Items]
Restructuring charges	31,200	39,100
Facilities and related costs
Restructuring Cost and Reserve [Line Items]
Restructuring charges	3,000	35,800
Other exit-related costs
Restructuring Cost and Reserve [Line Items]
Restructuring charges	3,500	2,000
Impairment of equipment and technology licenses
Restructuring Cost and Reserve [Line Items]
Restructuring charges	600	12,000
November 2016 and Other Restructuring
Restructuring Cost and Reserve [Line Items]
Cumulative costs incurred			$ 95,600
November 2016 and Other Restructuring \| Severance
Restructuring Cost and Reserve [Line Items]
Restructuring charges	0	0
November 2016 and Other Restructuring \| Facilities and related costs
Restructuring Cost and Reserve [Line Items]
Restructuring charges	0	0
November 2016 and Other Restructuring \| Other exit-related costs
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 0	$ 0

Restructuring and Other Related Charges - Reconciliation of Restructuring Liability (Details) - USD ($) $ in Thousands	12 Months Ended
	Feb. 01, 2020	Feb. 02, 2019	Feb. 03, 2018
Restructuring Reserve [Roll Forward]
Balance at beginning of period	$ 40,356	$ 1,671
Restructuring charges	39,244	78,226	$ 12,021
Net cash payments	(37,768)	(38,213)
Release of reserves	(1,511)	(1,273)
Exchange rate adjustment		(55)
Effect of adoption of new lease standard	25,893
Balance at end of period	14,428	40,356	1,671
Less: non-current portion	126	13,654
Current portion	14,302	26,702
Severance and related costs
Restructuring Reserve [Roll Forward]
Restructuring charges	31,200	39,100
Release of reserves	480	1,273	1,612
Facilities and related costs
Restructuring Reserve [Roll Forward]
Restructuring charges	3,000	35,800
Release of reserves	893	0	258
Other exit-related costs
Restructuring Reserve [Roll Forward]
Restructuring charges	3,500	2,000
Release of reserves	138	0	340
November 2016 and Other Restructuring \| Severance and related costs
Restructuring Reserve [Roll Forward]
Balance at beginning of period	0	654
Restructuring charges	0	0
Net cash payments	0	(654)
Release of reserves	0	0
Exchange rate adjustment		0
Effect of adoption of new lease standard	0
Balance at end of period	0	0	654
Less: non-current portion	0
Current portion	0
November 2016 and Other Restructuring \| Facilities and related costs
Restructuring Reserve [Roll Forward]
Balance at beginning of period	0	462
Restructuring charges	0	0
Net cash payments	0	(462)
Release of reserves	0	0
Exchange rate adjustment		0
Effect of adoption of new lease standard	0
Balance at end of period	0	0	462
Less: non-current portion	0
Current portion	0
November 2016 and Other Restructuring \| Other exit-related costs
Restructuring Reserve [Roll Forward]
Balance at beginning of period	0	555
Restructuring charges	0	0
Net cash payments	0	(555)
Release of reserves	0	0
Exchange rate adjustment		0
Effect of adoption of new lease standard	0
Balance at end of period	0	0	555
Less: non-current portion	0
Current portion	0
July 2018 Restructuring \| Severance and related costs
Restructuring Reserve [Roll Forward]
Balance at beginning of period	12,403	0
Restructuring charges	16,698	40,345
Net cash payments	(27,706)	(26,614)
Release of reserves	(479)	(1,273)
Exchange rate adjustment		(55)
Effect of adoption of new lease standard	0
Balance at end of period	916	12,403	0
Less: non-current portion	0
Current portion	916
July 2018 Restructuring \| Facilities and related costs
Restructuring Reserve [Roll Forward]
Balance at beginning of period	26,904	0
Restructuring charges	3,713	35,831
Net cash payments	(3,374)	(8,927)
Release of reserves	(893)	0
Exchange rate adjustment		0
Effect of adoption of new lease standard	25,893
Balance at end of period	457	26,904	0
Less: non-current portion	126
Current portion	331
July 2018 Restructuring \| Other exit-related costs
Restructuring Reserve [Roll Forward]
Balance at beginning of period	1,049	0
Restructuring charges	3,429	2,050
Net cash payments	(3,804)	(1,001)
Release of reserves	(138)	0
Exchange rate adjustment		0
Effect of adoption of new lease standard	0
Balance at end of period	536	1,049	0
Less: non-current portion	0
Current portion	536
November 2019 Restructuring \| Severance and related costs
Restructuring Reserve [Roll Forward]
Balance at beginning of period	0	0
Restructuring charges	14,987	0
Net cash payments	(2,674)	0
Release of reserves	(1)	0
Exchange rate adjustment		0
Effect of adoption of new lease standard	0
Balance at end of period	12,312	0	0
Less: non-current portion	0
Current portion	12,312
November 2019 Restructuring \| Facilities and related costs
Restructuring Reserve [Roll Forward]
Balance at beginning of period	0	0
Restructuring charges	225	0
Net cash payments	(29)	0
Release of reserves	0	0
Exchange rate adjustment		0
Effect of adoption of new lease standard	0
Balance at end of period	196	0	0
Less: non-current portion	0
Current portion	196
November 2019 Restructuring \| Other exit-related costs
Restructuring Reserve [Roll Forward]
Balance at beginning of period	0	0
Restructuring charges	192	0
Net cash payments	(181)	0
Release of reserves	0	0
Exchange rate adjustment		0
Effect of adoption of new lease standard	0
Balance at end of period	11	$ 0	$ 0
Less: non-current portion	0
Current portion	$ 11

Leases - Additional Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Feb. 01, 2020	Feb. 03, 2019
Leases [Abstract]
Operating right-of-use assets	$ 110,907	$ 125,000
Lease liabilities	144,440	$ 149,000
Operating lease amortization	$ 20,400

Leases - Lease Expense and Supplemental Cash Flow Information (Details) $ in Thousands	3 Months Ended
	Feb. 01, 2020 USD ($)
Leases [Abstract]
Operating lease expense	$ 49,679
Cash paid for amounts included in the measurement of operating lease liabilities	33,161
Right-of-use assets obtained in exchange for lease obligation	$ 28,928

Leases - Supplemental Balance Sheet Information (Details) - USD ($) $ in Thousands	Feb. 01, 2020	Feb. 03, 2019
Leases [Abstract]
Right-of-use assets	$ 110,907	$ 125,000
Current portion of lease liabilities	28,662
Non-current portion of lease liabilities	115,778
Total lease liabilities	$ 144,440	$ 149,000

Leases - Maturities of Operating Lease Liabilities (Details) - USD ($) $ in Thousands	Feb. 01, 2020	Feb. 03, 2019
Operating Leases
2021	$ 35,272
2022	35,753
2023	28,932
2024	19,575
2025	12,791
Thereafter	34,015
Total lease payments	166,338
Less: imputed interest	21,898
Present value of lease liabilities	144,440	$ 149,000
Sublease Income
2021	(3,420)
2022	(3,253)
2023	(3,350)
2024	(3,451)
2025	(3,554)
Thereafter	(9,364)
Total lease payments	$ (26,392)

Leases - Future Minimum Lease Payments Under Previous Accounting Standard (Details) $ in Thousands	Feb. 02, 2019 USD ($)
Leases [Abstract]
2020	$ 43,286
2021	29,866
2022	26,612
2023	21,272
2024	13,690
Thereafter	40,100
Total	$ 174,826

Leases - Schedule of Average Lease Terms and Discount Rates (Details)	Feb. 01, 2020
Leases [Abstract]
Weighted-average remaining lease term (years)	5 years 6 months 7 days
Weighted-average discount rate	385.00%

Revenue - Net Revenue by Product Group (Details) - USD ($) $ in Thousands	12 Months Ended
	Feb. 01, 2020	Feb. 02, 2019	Feb. 03, 2018
Disaggregation of Revenue [Line Items]
Net revenue	$ 2,699,161	$ 2,865,791	$ 2,409,170
Networking
Disaggregation of Revenue [Line Items]
Net revenue	$ 1,377,635	$ 1,313,439	$ 961,497
Networking \| Product Concentration Risk \| Net revenue
Disaggregation of Revenue [Line Items]
% of Total	51.00%	46.00%	40.00%
Storage
Disaggregation of Revenue [Line Items]
Net revenue	$ 1,137,766	$ 1,376,697	$ 1,254,365
Storage \| Product Concentration Risk \| Net revenue
Disaggregation of Revenue [Line Items]
% of Total	42.00%	48.00%	52.00%
Other
Disaggregation of Revenue [Line Items]
Net revenue	$ 183,760	$ 175,655	$ 193,308
Other \| Product Concentration Risk \| Net revenue
Disaggregation of Revenue [Line Items]
% of Total	7.00%	6.00%	8.00%

Revenue - Net Revenue Based on Destination of Shipment (Details) - USD ($) $ in Thousands	12 Months Ended
	Feb. 01, 2020	Feb. 02, 2019	Feb. 03, 2018
Disaggregation of Revenue [Line Items]
Net revenue	$ 2,699,161	$ 2,865,791	$ 2,409,170
China
Disaggregation of Revenue [Line Items]
Net revenue	$ 1,071,028	$ 1,189,928	$ 1,205,202
China \| Geographic Concentration Risk \| Net revenue
Disaggregation of Revenue [Line Items]
% of Total	40.00%	42.00%	50.00%
United States
Disaggregation of Revenue [Line Items]
Net revenue	$ 258,827	$ 251,905	$ 42,560
United States \| Geographic Concentration Risk \| Net revenue
Disaggregation of Revenue [Line Items]
% of Total	10.00%	9.00%	2.00%
Thailand
Disaggregation of Revenue [Line Items]
Net revenue	$ 230,218	$ 165,923	$ 137,662
Thailand \| Geographic Concentration Risk \| Net revenue
Disaggregation of Revenue [Line Items]
% of Total	9.00%	6.00%	6.00%
Malaysia
Disaggregation of Revenue [Line Items]
Net revenue	$ 226,358	$ 372,817	$ 388,469
Malaysia \| Geographic Concentration Risk \| Net revenue
Disaggregation of Revenue [Line Items]
% of Total	8.00%	13.00%	16.00%
Philippines
Disaggregation of Revenue [Line Items]
Net revenue	$ 221,566	$ 235,921	$ 270,101
Philippines \| Geographic Concentration Risk \| Net revenue
Disaggregation of Revenue [Line Items]
% of Total	8.00%	8.00%	11.00%
Others
Disaggregation of Revenue [Line Items]
Net revenue	$ 691,164	$ 649,297	$ 365,176
Others \| Geographic Concentration Risk \| Net revenue
Disaggregation of Revenue [Line Items]
% of Total	25.00%	22.00%	15.00%

Revenue - Net Revenue by Customer Type (Details) - USD ($) $ in Thousands	12 Months Ended
	Feb. 01, 2020	Feb. 02, 2019	Feb. 03, 2018
Disaggregation of Revenue [Line Items]
Net revenue	$ 2,699,161	$ 2,865,791	$ 2,409,170
Direct customers
Disaggregation of Revenue [Line Items]
Net revenue	$ 2,041,089	$ 2,197,209	$ 1,888,108
Direct customers \| Customer Concentration Risk \| Net revenue
Disaggregation of Revenue [Line Items]
% of Total	76.00%	77.00%	78.00%
Distributors
Disaggregation of Revenue [Line Items]
Net revenue	$ 658,072	$ 668,582	$ 521,062
Distributors \| Customer Concentration Risk \| Net revenue
Disaggregation of Revenue [Line Items]
% of Total	24.00%	23.00%	22.00%

Revenue - Contract Liabilities (Details) $ in Millions	12 Months Ended
Revenue - Contract Liabilities (Details) $ in Millions	Feb. 01, 2020 USD ($)
Change in Contract with Customer, Asset and Liability [Abstract]
Beginning balance	$ 142.4
Estimates for additional shipments	666.5
Credit memos issued	697.4
Ending balance	$ 111.5

Supplemental Financial Information - Cash and Cash Equivalents (Details) - USD ($) $ in Thousands	Feb. 01, 2020	Feb. 02, 2019
Cash and cash equivalents:
Cash	$ 513,072	$ 491,646
Cash equivalents:
Money market funds	46,355	16,829
Time deposits	88,177	73,935
Cash and cash equivalents	$ 647,604	$ 582,410

Supplemental Financial Information - Provision for Sales Return and Allowance (Details) - USD ($) $ in Thousands	Feb. 01, 2020	Feb. 02, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Doubtful accounts	$ 2,126	$ 2,637

Supplemental Financial Information - Inventories (Details) - USD ($) $ in Thousands	Feb. 01, 2020	Feb. 02, 2019
Inventories:
Work-in-process	$ 216,496	$ 162,384
Finished goods	106,484	113,621
Inventories	$ 322,980	$ 276,005

Supplemental Financial Information - Property and Equipment, Net (Details) - USD ($) $ in Thousands	12 Months Ended
	Feb. 01, 2020	Feb. 02, 2019	Feb. 03, 2018
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 1,096,630	$ 1,031,839
Less: Accumulated depreciation	(739,538)	(712,861)
Property and equipment, net	357,092	318,978
Depreciation expense	83,400	64,500	$ 49,200
Machinery and equipment
Property, Plant and Equipment [Line Items]
Property and equipment, gross	686,351	615,329
Land, buildings, and leasehold improvements
Property, Plant and Equipment [Line Items]
Property and equipment, gross	285,084	287,047
Computer software
Property, Plant and Equipment [Line Items]
Property and equipment, gross	100,613	105,539
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 24,582	$ 23,924

Supplemental Financial Information - Other Non-current Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Feb. 01, 2020	Feb. 02, 2019	Feb. 03, 2018	Feb. 03, 2019
Other non-current assets:
Technology and other licenses	$ 277,634	$ 125,278
Operating right-of-use assets	110,907			$ 125,000
Prepaid ship and debit	75,362	75,079
Other	32,947	34,512
Other non-current assets	496,850	234,869
Technology and Other Licenses
Finite-Lived Intangible Assets [Line Items]
Amortization and write-off of acquired intangible assets	$ 70,400	$ 57,000	$ 34,300

Supplemental Financial Information - Accrued Liabilities (Details) - USD ($) $ in Thousands	Feb. 01, 2020	Feb. 02, 2019
Accrued liabilities:
Contract liabilities	$ 111,486	$ 142,378
Technology license obligations	71,623	48,018
Deferred non-recurring engineering credits	51,109	13,440
Lease liabilities - current	28,662
Accrued restructuring	14,302	26,702
Accrued royalty	10,927	11,438
Accrued income tax payable	6,133	47,079
Other	52,397	46,454
Accrued liabilities	$ 346,639	$ 335,509

Supplemental Financial Information - Other Non-current Liabilities (Details) - USD ($) $ in Thousands	Feb. 01, 2020	Feb. 02, 2019
Other non-current liabilities:
Lease liabilities - non current	$ 115,778
Technology license obligations	107,893	$ 6,716
Non-current income taxes payable	37,983	59,221
Long-term restructuring liabilities	126	13,654
Other	12,452	15,004
Other non-current liabilities	$ 274,232	$ 94,595

Supplemental Financial Information - Changes in AOCI by Components (Details) - USD ($) $ in Thousands	12 Months Ended
	Feb. 01, 2020	Feb. 02, 2019	Feb. 03, 2018
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at beginning of period	$ 7,306,410	$ 4,141,413	$ 4,027,651
Other comprehensive loss before reclassifications	(37)	(733)
Amounts reclassified from accumulated other comprehensive income (loss)	37	3,055
Other comprehensive income (loss), net of tax	0	2,322	(2,345)
Balance at end of period	8,678,580	7,306,410	4,141,413
Unrealized Gain (Loss) on Marketable Securities
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at beginning of period	0	(2,322)
Other comprehensive loss before reclassifications	0	(733)
Amounts reclassified from accumulated other comprehensive income (loss)	0	3,055
Other comprehensive income (loss), net of tax	0	2,322
Balance at end of period	0	0	(2,322)
Unrealized Gain (Loss) on Cash Flow Hedges
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at beginning of period	0	0
Other comprehensive loss before reclassifications	(37)	0
Amounts reclassified from accumulated other comprehensive income (loss)	37	0
Other comprehensive income (loss), net of tax	0	0
Balance at end of period	0	0	0
Total
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at beginning of period	0	(2,322)	23
Other comprehensive income (loss), net of tax		2,322	(2,345)
Balance at end of period	$ 0	$ 0	$ (2,322)

Supplemental Financial Information - Other Income, Net (Details) - USD ($) $ in Thousands		12 Months Ended
	Dec. 06, 2019	Feb. 01, 2020	Feb. 02, 2019	Feb. 03, 2018
Other income, net:
Gain on sale of business		$ 1,121,709	$ 0	$ 5,254
Net realized loss on investments		0	(3,066)	(2,777)
Currency remeasurement loss		(2,817)	(2,625)	(28)
Other income		3,663	6,210	2,364
Other Income, net		$ 1,122,555	$ 519	$ 4,813
Wi Fi Business
Other income, net:
Gain on sale of business	$ 1,100,000

Supplemental Financial Information - Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Feb. 01, 2020	Feb. 02, 2019	Feb. 03, 2018
Supplemental cash flow information:
Cash paid for interest	$ 76,506	$ 39,156	$ 746
Cash paid for income taxes, net	117,529	8,143	11,401
Non-Cash Investing and Financing Activities:
Non-cash consideration paid for the acquisition	15,520	3,331,342	0
Purchase of software and intellectual property under license obligations	193,149	4,221	59,803
Unsettled trade payable of available-for-sale securities	0	0	4,497
Unpaid purchase of property and equipment at end of year	23,015	8,837	5,595
Unpaid equity and debt financing costs	$ 0	$ 0	$ 3,244

Investments - Additional Information (Details) - USD ($)	Feb. 01, 2020	Feb. 02, 2019
Investments, Debt and Equity Securities [Abstract]
Investments	$ 0	$ 0
Short-term, highly liquid investments	$ 134,500,000	$ 90,800,000

Investments - Gross Realized Gains and Losses on Sales of Available-for-Sale Securities (Details) - USD ($) $ in Thousands	12 Months Ended
	Feb. 01, 2020	Feb. 02, 2019	Feb. 03, 2018
Investments, Debt and Equity Securities [Abstract]
Gross realized gains	$ 14	$ 371	$ 186
Gross realized losses	(6)	(3,437)	(2,963)
Total net realized gains (losses)	$ 8	$ (3,066)	$ (2,777)

Fair Value Measurements - Assets and Liabilities Measured on a Recurring Basis (Details) - USD ($) $ in Thousands	Feb. 01, 2020	Feb. 02, 2019
Assets
Other non-current assets	$ 693	$ 727
Total assets	135,225	91,491
Level 1
Assets
Other non-current assets	0	0
Total assets	46,355	16,829
Level 2
Assets
Other non-current assets	693	727
Total assets	88,870	74,662
Level 3
Assets
Other non-current assets	0	0
Total assets	0	0
Money market funds
Assets
Cash equivalents	46,355	16,829
Money market funds \| Level 1
Assets
Cash equivalents	46,355	16,829
Money market funds \| Level 2
Assets
Cash equivalents	0	0
Money market funds \| Level 3
Assets
Cash equivalents	0	0
Time deposits
Assets
Cash equivalents	88,177	73,935
Time deposits \| Level 1
Assets
Cash equivalents	0	0
Time deposits \| Level 2
Assets
Cash equivalents	88,177	73,935
Time deposits \| Level 3
Assets
Cash equivalents	$ 0	$ 0

Fair Value Measurements - Additional Information (Details) $ in Billions	Feb. 01, 2020 USD ($)
Level 2 \| Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Estimated aggregate fair value of debt	$ 1.1

Debt - Additional Information (Details) - USD ($)		1 Months Ended	12 Months Ended
Debt - Additional Information (Details) - USD ($)	Nov. 04, 2019	Jun. 30, 2018	Feb. 01, 2020	Feb. 02, 2019	Jun. 22, 2018	Jun. 13, 2018
Debt Instrument [Line Items]
Interest expense			$ 79,800,000	$ 50,100,000
Bridge Loan
Debt Instrument [Line Items]
Amount of debt extinguished		$ 850,000,000
Term Loan
Debt Instrument [Line Items]
Borrowing capacity						$ 900,000,000
Debt term			3 years
Term Loan \| LIBOR
Debt Instrument [Line Items]
Basis spread on variable rate (as a percent)			1.375%
Line of Credit \| Revolving Credit Facility
Debt Instrument [Line Items]
Borrowing capacity						$ 500,000,000
Debt term			5 years
Line of Credit \| Revolving Credit Facility \| LIBOR
Debt Instrument [Line Items]
Basis spread on variable rate (as a percent)			1.50%
Senior Notes
Debt Instrument [Line Items]
Aggregate principal amount					$ 1,000,000,000.0
Bridge Loan
Debt Instrument [Line Items]
Borrowing capacity	$ 600,000,000
Debt term	90 days
Bridge Loan \| LIBOR
Debt Instrument [Line Items]
Basis spread on variable rate (as a percent)	0.90%

Debt - Term Loan and Revolving Credit Facility (Details) - USD ($)			12 Months Ended
	Sep. 17, 2019	Jun. 13, 2018	Feb. 01, 2020	Feb. 02, 2019	Feb. 03, 2018
Line of Credit Facility [Line Items]
Payment of principal			$ 1,250,000,000	$ 756,128,000	$ 0
Debt outstanding			$ 1,439,024,000	$ 1,732,699,000
Unused commitment fee percentage		0.175%
Revolving Credit Facility
Line of Credit Facility [Line Items]
Drawings from facility	$ 350,000,000
Line of Credit \| Revolving Credit Facility
Line of Credit Facility [Line Items]
Borrowing capacity		$ 500,000,000
Debt term			5 years
Amount available for draw			$ 500,000,000
Line of Credit \| Revolving Credit Facility \| LIBOR
Line of Credit Facility [Line Items]
Basis spread on variable rate (as a percent)			1.50%
Term Loan
Line of Credit Facility [Line Items]
Borrowing capacity		$ 900,000,000
Debt term			3 years
Effective interest rate			4.06%
Payment of principal			$ 300,000,000
Write off of unamortized debt issuance costs			2,100,000
Debt outstanding			$ 450,000,000
Term Loan \| LIBOR
Line of Credit Facility [Line Items]
Basis spread on variable rate (as a percent)			1.375%

Debt - Senior Unsecured Notes (Details) - Senior Notes	Jun. 22, 2018 USD ($)
Debt Instrument [Line Items]
Aggregate principal amount	$ 1,000,000,000.0
Redemption price percentage	101.00%
2023 Notes
Debt Instrument [Line Items]
Aggregate principal amount	$ 500,000,000.0
Stated interest rate	4.20%
Effective interest rate	4.42%
2028 Notes
Debt Instrument [Line Items]
Aggregate principal amount	$ 500,000,000.0
Stated interest rate	4.875%
Effective interest rate	5.01%

Debt - Summary of Outstanding Debt (Details) - USD ($) $ in Thousands	Feb. 01, 2020	Feb. 02, 2019
Debt Instrument [Line Items]
Total borrowings	$ 1,450,000	$ 1,750,000
Less: Unamortized debt discount and issuance cost	(10,976)	(17,301)
Net carrying amount of debt	1,439,024	1,732,699
Less: Current portion	0	0
Non-current portion	1,439,024	1,732,699
Term Loan
Debt Instrument [Line Items]
Total borrowings	450,000	750,000
Net carrying amount of debt	450,000
Notes \| 2023 Notes
Debt Instrument [Line Items]
Total borrowings	500,000	500,000
Notes \| 2028 Notes
Debt Instrument [Line Items]
Total borrowings	$ 500,000	$ 500,000

Debt - Future Maturities (Details) - USD ($) $ in Thousands	Feb. 01, 2020	Feb. 02, 2019
Fiscal Year
2021	$ 0
2022	450,000
2023	0
2024	500,000
2025	0
Thereafter	500,000
Total	$ 1,450,000	$ 1,750,000

Debt - Repayment of Debt and Termination of Credit Facility of Cavium (Details) $ in Millions	Jul. 06, 2018 USD ($)
Cavium
Debt Instrument [Line Items]
Payment of debt and interest	$ 606.6

Commitments and Contingencies - Warranty Obligations (Details)	12 Months Ended
	Feb. 01, 2020
Commitments and Contingencies Disclosure [Abstract]
Standard warranty period	1 year
Extended warranty period (more than)	1 year

Commitments and Contingencies - Future Minimum Payments Under Technology License Obligations (Details) - USD ($) $ in Thousands	Feb. 01, 2020	Feb. 02, 2019
Fiscal Year
Less: current portion	$ (71,623)	$ (48,018)
Non-current portion	107,893	$ 6,716
Technology License Obligations
Fiscal Year
2021	83,746
2022	70,659
2023	40,084
2024	29,309
2025	309
Thereafter	309
Total future minimum payments	224,416
Less: amount representing interest	(8,843)
Present value of future minimum payments	215,573
Less: current portion	(71,623)
Non-current portion	$ 143,950

Commitments and Contingencies - Purchase Commitments (Details) $ in Millions	Feb. 01, 2020 USD ($)
Commitments and Contingencies Disclosure [Abstract]
Purchase commitment, outstanding commitment	$ 163.7

Shareholders’ Equity - Preferred and Common Stock (Details) - $ / shares	Feb. 01, 2020	Jun. 30, 2019	Feb. 02, 2019
Equity [Abstract]
Preferred stock, shares authorized (in shares)	8,000,000		8,000,000
Preferred stock, par value (in usd per share)	$ 0.002		$ 0.002
Common stock, shares authorized (in shares)	992,000,000		992,000,000
Common stock, par value (in usd per share)	$ 0.002		$ 0.002
Preferred stock, shares outstanding (in shares)	0		0
Warrants to purchase common shares (in shares)		9,000,000.0

Shareholders’ Equity - Restricted Stock Unit Withholdings (Details) - USD ($) $ in Thousands, shares in Millions	12 Months Ended
	Feb. 01, 2020	Feb. 02, 2019	Feb. 03, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Tax withholdings related to net share settlement of restricted stock units	$ 98,293	$ 54,934	$ 26,840
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares withheld	4.0	2.7
Tax withholdings related to net share settlement of restricted stock units	$ 98,300	$ 54,900

Shareholders’ Equity - Cash Dividends on Shares of Common Stock (Details) - USD ($) $ / shares in Units, $ in Thousands		12 Months Ended
	Mar. 12, 2020	Feb. 01, 2020	Feb. 02, 2019	Feb. 03, 2018
Subsequent Event [Line Items]
Cash dividends declared per share (in usd per share)		$ 0.24	$ 0.24	$ 0.24
Cash dividends paid (in usd per share)		$ 0.24	$ 0.24	$ 0.24
Dividends		$ 159,600	$ 148,100
Payments of dividends		$ 159,573	$ 148,081	$ 119,251
Subsequent Event
Subsequent Event [Line Items]
Cash dividends declared per share (in usd per share)	$ 0.06

Shareholders’ Equity - Stock Repurchase Program, Additional Information (Details) - USD ($) $ / shares in Units, shares in Thousands	1 Months Ended	12 Months Ended			39 Months Ended
	Mar. 16, 2020	Feb. 01, 2020	Feb. 02, 2019	Feb. 03, 2018	Feb. 01, 2020	Oct. 16, 2018	Nov. 17, 2016	Nov. 16, 2016
Equity [Abstract]
Share repurchase program, amount authorized						$ 700,000,000	$ 1,000,000,000.0	$ 3,250,000,000
Share repurchase program, remaining available for future share repurchases		$ 589,700,000			$ 589,700,000
Class of Stock [Line Items]
Number of shares repurchased (in shares)		14,486	6,041	31,460	306,900
Amount of shares repurchased		$ 364,272,000	$ 103,974,000	$ 526,075,000	$ 4,200,000,000
Average price per share (in usd per share)		$ 25.15	$ 17.21	$ 16.72
Subsequent Event
Class of Stock [Line Items]
Number of shares repurchased (in shares)	800
Amount of shares repurchased	$ 17,200,000
Average price per share (in usd per share)	$ 21.14

Shareholders’ Equity - Stock Repurchase Program Roll Forward (Details) - USD ($) $ / shares in Units, shares in Thousands	12 Months Ended			39 Months Ended
	Feb. 01, 2020	Feb. 02, 2019	Feb. 03, 2018	Feb. 01, 2020
Shares Repurchased
Cumulative balance at beginning of period (in shares)	292,406	286,365	254,904
Repurchase of common stock under the stock repurchase program (in shares)	14,486	6,041	31,460	306,900
Cumulative balance at end of period (in shares)	306,892	292,406	286,365	306,892
Weighted- Average Price per Share
Cumulative balance at beginning of period (in usd per share)	$ 13.27	$ 13.19	$ 12.75
Repurchase of common stock under the stock repurchase program (in usd per share)	25.15	17.21	16.72
Cumulative balance at end of period (in usd per share)	$ 13.83	$ 13.27	$ 13.19	$ 13.83
Amount Repurchased
Cumulative balance at beginning of period	$ 3,880,531,000	$ 3,776,557,000	$ 3,250,481,000
Repurchase of common stock under the stock repurchase program	364,272,000	103,974,000	526,075,000	$ 4,200,000,000
Cumulative balance at end of period	4,244,803,000	3,880,531,000	3,776,557,000	4,244,803,000
Stock repurchases pending settlement	$ 0	$ 0	$ 0	$ 0

Employee Benefit Plans - 1995 Stock Option Plan (Details) - 1995 Stock Option Plan - shares shares in Millions	12 Months Ended
	Feb. 01, 2020	Feb. 02, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares reserved for issuance, authorized	383.4
Equity awards, expiration period	10 years
Number of shares available for future issuance	82.7
Incentive Stock Option \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Equity awards, vesting period	2 years
Incentive Stock Option \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Equity awards, vesting period	5 years
Performance-Based RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Equity awards, vesting period	3 years
Expected achievement percentage of performance awards	100.00%
Performance-Based RSUs \| Executive Officers
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award service period	3 years
Performance-Based RSUs \| Executive Officers \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awards that can be earned as a percentage of target	0.00%
Performance-Based RSUs \| Executive Officers \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awards that can be earned as a percentage of target	200.00%
Market-Based RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected achievement percentage of performance awards	100.00%
Market-Based RSUs \| Executive Officers
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award service period	3 years
Market-Based RSUs \| Executive Officers \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awards that can be earned as a percentage of target	0.00%	0.00%
Market-Based RSUs \| Executive Officers \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awards that can be earned as a percentage of target	200.00%	150.00%

Employee Benefit Plans - Cavium Acquisition (Details) - Cavium Plans	Jul. 06, 2018 shares
Class of Stock [Line Items]
Number of common stock issuable (in shares)	15,824,555
Stock Options
Class of Stock [Line Items]
Number of common stock issuable (in shares)	2,535,940
Total
Class of Stock [Line Items]
Number of common stock issuable (in shares)	13,288,615

Employee Benefit Plans - Cavium 2016 EIP (Details) - Cavium 2016 EIP	12 Months Ended
	Feb. 01, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period	4 years
Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award expiration period	7 years
Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award expiration period	10 years

Employee Benefit Plans - Cavium 2007 EIP (Details) - Cavium 2007 EIP	12 Months Ended
	Feb. 01, 2020
Stock Options \| Tranche One
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage	12.50%
Award vesting period	6 months
Stock Options \| Tranche Two
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage	2.08%
Award vesting period	3 years 6 months
Total
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period	4 years
Total \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award expiration period	7 years
Total \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award expiration period	10 years

Employee Benefit Plans - QLogic 2005 Plan (Details) - QLogic 2005 Plan	12 Months Ended
	Feb. 01, 2020
Total
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period	4 years
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period	4 years
Award term	10 years

Employee Benefit Plans - Cavium Acquisition-related Equity Awards (Details) - Cavium - Cavium Plans - USD ($) $ in Millions	Sep. 19, 2019	Jul. 06, 2018	Jul. 05, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Fair value of awards assumed in acquisition	$ 54.1	$ 357.1
Share-based compensation expense to be recognized		$ 288.2	$ 68.9

Employee Benefit Plans - Aquantia Plans Assumed (Details) - Aquantia Plans	Sep. 19, 2019 shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of common stock issuable (in shares)	2,128,823
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of common stock issuable (in shares)	805,965
Total
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of common stock issuable (in shares)	1,322,858

Employee Benefit Plans - Aquantia Acquisition-related Equity Awards (Details) - USD ($) $ in Millions	Sep. 19, 2019	Sep. 18, 2019
Aquantia \| Aquantia Plans
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense to be recognized	$ 32.6	$ 21.5

Employee Benefit Plans - Outside Director Equity Compensation Policy (Details) - Outside Director Equity Compensation Policy - RSUs $ in Thousands	12 Months Ended
	Feb. 01, 2020 USD ($) shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Equity awards, aggregate fair market value \| $	$ 235
Equity awards, vesting percentage	100.00%
Equity awards, vesting period	1 year
Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized \| shares	20,000

Employee Benefit Plans - Employee Stock Purchase Plan (Details) - the ESPP - USD ($) $ / shares in Units, shares in Millions, $ in Millions	12 Months Ended
	Feb. 01, 2020	Feb. 02, 2019	Feb. 03, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maximum subscription rate	15.00%
Look-back period	24 months
Percentage discount of purchase price per share of common shares	85.00%
Offering period	2 years
Purchase period	6 months
Number of shares issued	5.2	3.2	7.0
Weighted-average price (in usd per share)	$ 13.25	$ 15.08	$ 7.49
Unamortized compensation expense	$ 28.1
Number of shares available for future issuance	29.5

Employee Benefit Plans - Summary of Share-based Compensation Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Feb. 01, 2020	Feb. 02, 2019	Feb. 03, 2018
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Share-based compensation expense	$ 242,809	$ 198,095	$ 86,689
Continuing operations
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Share-based compensation expense	242,809	198,095	85,122
Continuing operations \| Cost of goods sold
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Share-based compensation expense	13,759	12,024	6,646
Continuing operations \| Research and development
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Share-based compensation expense	157,054	108,762	52,127
Continuing operations \| Selling, general and administrative
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Share-based compensation expense	71,996	77,309	26,349
Discontinued operations
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Share-based compensation expense	0	0	1,567
Discontinued operations \| Cost of goods sold
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Share-based compensation expense	0	0	(11)
Discontinued operations \| Research and development
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Share-based compensation expense	0	0	1,458
Discontinued operations \| Selling, general and administrative
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Share-based compensation expense	$ 0	$ 0	$ 120

Employee Benefit Plans - Share-based Compensation (Narrative) (Details) - USD ($) $ in Millions	Feb. 01, 2020	Feb. 02, 2019	Feb. 03, 2018
Share-based Payment Arrangement [Abstract]
Share-based compensation capitalized in inventory	$ 4.1	$ 2.8	$ 1.3

Employee Benefit Plans - Restricted Stock Unit Activity (Details) - $ / shares	12 Months Ended
	Feb. 01, 2020	Feb. 02, 2019	Feb. 03, 2018
Time-Based
Number of Shares
Beginning Balance (in shares)	19,045,000	10,289,000	9,925,000
Assumed upon acquisition (in shares)	1,341,000	13,289,000
Granted (in shares)	9,340,000	7,453,000	8,154,000
Vested (in shares)	(10,781,000)	(8,827,000)	(5,653,000)
Canceled/Forfeited (in shares)	(3,661,000)	(3,159,000)	(2,137,000)
Ending Balance (in shares)	15,284,000	19,045,000	10,289,000
Weighted- Average Grant Date Fair Value
Beginning Balance (in usd per share)	$ 19.15	$ 13.84	$ 10.52
Assumed upon acquisition (in usd per share)	25.61	21.02
Granted (in usd per share)	23.36	19.95	15.33
Vested (in usd per share)	20.01	16.30	10.86
Canceled/Forfeited (in usd per share)	20.57	19.64	11.95
Ending Balance (in usd per share)	$ 21.34	$ 19.15	$ 13.84
Performance-Based
Number of Shares
Beginning Balance (in shares)	948,000	672,000	313,000
Assumed upon acquisition (in shares)	0	0
Granted (in shares)	288,000	340,000	406,000
Vested (in shares)	(576,000)	0	0
Canceled/Forfeited (in shares)	(149,000)	(64,000)	(47,000)
Ending Balance (in shares)	511,000	948,000	672,000
Weighted- Average Grant Date Fair Value
Beginning Balance (in usd per share)	$ 16.58	$ 14.25	$ 13.91
Assumed upon acquisition (in usd per share)	0	0
Granted (in usd per share)	13.90	21.12	14.49
Vested (in usd per share)	13.90	0	0
Canceled/Forfeited (in usd per share)	17.86	16.29	13.99
Ending Balance (in usd per share)	$ 17.71	$ 16.58	$ 14.25
Market-Based
Number of Shares
Beginning Balance (in shares)	1,178,000	921,000	559,000
Assumed upon acquisition (in shares)	0	0
Granted (in shares)	3,621,000	351,000	409,000
Vested (in shares)	(713,000)	(30,000)	0
Canceled/Forfeited (in shares)	(173,000)	(64,000)	(47,000)
Ending Balance (in shares)	3,913,000	1,178,000	921,000
Weighted- Average Grant Date Fair Value
Beginning Balance (in usd per share)	$ 15.40	$ 13.14	$ 11.80
Assumed upon acquisition (in usd per share)	0	0
Granted (in usd per share)	15.39	21.36	15.14
Vested (in usd per share)	11.62	13.08	0
Canceled/Forfeited (in usd per share)	21.12	16.52	14.71
Ending Balance (in usd per share)	$ 15.83	$ 15.40	$ 13.14
Total
Number of Shares
Beginning Balance (in shares)	21,171,000	11,882,000	10,797,000
Assumed upon acquisition (in shares)	1,341,000	13,289,000
Granted (in shares)	13,249,000	8,144,000	8,969,000
Vested (in shares)	(12,070,000)	(8,857,000)	(5,653,000)
Canceled/Forfeited (in shares)	(3,983,000)	(3,287,000)	(2,231,000)
Ending Balance (in shares)	19,708,000	21,171,000	11,882,000
Weighted- Average Grant Date Fair Value
Beginning Balance (in usd per share)	$ 18.82	$ 13.81	$ 10.69
Assumed upon acquisition (in usd per share)	25.61	21.02
Granted (in usd per share)	20.98	20.06	15.28
Vested (in usd per share)	19.23	16.28	10.86
Canceled/Forfeited (in usd per share)	20.49	19.51	12.05
Ending Balance (in usd per share)	$ 20.15	$ 18.82	$ 13.81
Total \| Executive Officers \| Maximum
Weighted- Average Grant Date Fair Value
Equity awards, vesting percentage	200.00%
Total Shareholder Return Awards
Number of Shares
Granted (in shares)	824
Value Creation Awards
Number of Shares
Granted (in shares)	2,797

Employee Benefit Plans - Restricted Stock and Stock Unit Awards (Narrative) (Details) $ / shares in Units, shares in Millions, $ in Millions	12 Months Ended
	Feb. 01, 2020 USD ($) $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Closing stock price (in usd per share) \| $ / shares	$ 24.04
RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Aggregate intrinsic value expected to vest	$ 473.8
Number of shares expected to vest \| shares	19.7
Unamortized compensation expense	$ 335.3
Unrecognized share based compensation cost, weighted-average period of recognition (in years)	1 year 11 months 4 days

Employee Benefit Plans - Stock Option Plan Activity (Details) - $ / shares shares in Thousands	12 Months Ended
	Feb. 01, 2020	Feb. 02, 2019	Feb. 03, 2018
Number of Shares
Balance at beginning of period (in shares)	9,624	11,772	25,096
Assumed Upon Acquisition (in shares)	808	3,026
Granted (in shares)	0	0	0
Exercised (in shares)	(6,178)	(4,812)	(10,305)
Canceled/Forfeited (in shares)	(37)	(362)	(3,019)
Balance at end of period (in shares)	4,217	9,624	11,772
Vested or expected to vest at end of period (in shares)	4,217
Weighted- Average Exercise Price
Balance at beginning of period (in usd per share)	$ 12.87	$ 12.36	$ 12.61
Assumed Upon Acquisition (in usd per share)	9.20	11.85
Granted (in usd per share)	0	0	0
Exercised (in usd per share)	12.67	10.93	12.38
Canceled/Forfeited (in usd per share)	13.57	13.64	14.33
Balance at end of period (in usd per share)	$ 12.44	$ 12.87	$ 12.36

Employee Benefit Plans - Option Plan and Stock Award Activity (Narrative) (Details) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Feb. 01, 2020	Feb. 02, 2019	Feb. 03, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options vested and expected to vest, aggregate intrinsic value	$ 48.9
Options exercisable, aggregate intrinsic value	47.5
Aggregate intrinsic value of stock options exercised	$ 70.5	$ 40.6	$ 57.0
Closing stock price (in usd per share)	$ 24.04
Unamortized compensation expense for stock options	$ 1.4
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized share based compensation cost, weighted-average period of recognition (in years)	1 year 2 months 8 days

Employee Benefit Plans - Schedule of Options, by Range of Exercise Prices (Details) shares in Thousands	12 Months Ended
	Feb. 01, 2020 $ / shares shares
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Outstanding Options, Number of Shares (in shares) \| shares	4,217
Outstanding Options, Weighted Average Remaining Contractual Term (in Years)	4 years 2 months 4 days
Outstanding Options, Weighted Average Exercise Price (in usd per share)	$ 12.44
Exercisable Options, Number of Shares (in shares) \| shares	4,082
Exercisable Options, Weighted Average Exercise Price (in usd per share)	$ 12.41
$3.89 - $10.31
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of Exercise Prices, Lower Limit (in usd per share)	3.89
Range of Exercise Prices, Upper Limit (in usd per share)	$ 10.31
Outstanding Options, Number of Shares (in shares) \| shares	678
Outstanding Options, Weighted Average Remaining Contractual Term (in Years)	5 years 3 months 3 days
Outstanding Options, Weighted Average Exercise Price (in usd per share)	$ 8.06
Exercisable Options, Number of Shares (in shares) \| shares	654
Exercisable Options, Weighted Average Exercise Price (in usd per share)	$ 8.03
$10.76 - $10.76
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of Exercise Prices, Lower Limit (in usd per share)	10.76
Range of Exercise Prices, Upper Limit (in usd per share)	$ 10.76
Outstanding Options, Number of Shares (in shares) \| shares	1,272
Outstanding Options, Weighted Average Remaining Contractual Term (in Years)	3 years 2 months 23 days
Outstanding Options, Weighted Average Exercise Price (in usd per share)	$ 10.76
Exercisable Options, Number of Shares (in shares) \| shares	1,272
Exercisable Options, Weighted Average Exercise Price (in usd per share)	$ 10.76
$10.89 - $14.35
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of Exercise Prices, Lower Limit (in usd per share)	10.89
Range of Exercise Prices, Upper Limit (in usd per share)	$ 14.35
Outstanding Options, Number of Shares (in shares) \| shares	1,145
Outstanding Options, Weighted Average Remaining Contractual Term (in Years)	5 years 1 month 6 days
Outstanding Options, Weighted Average Exercise Price (in usd per share)	$ 13.65
Exercisable Options, Number of Shares (in shares) \| shares	1,062
Exercisable Options, Weighted Average Exercise Price (in usd per share)	$ 13.65
$14.45 - $15.87
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of Exercise Prices, Lower Limit (in usd per share)	14.45
Range of Exercise Prices, Upper Limit (in usd per share)	$ 15.87
Outstanding Options, Number of Shares (in shares) \| shares	966
Outstanding Options, Weighted Average Remaining Contractual Term (in Years)	3 years 6 months 25 days
Outstanding Options, Weighted Average Exercise Price (in usd per share)	$ 15.58
Exercisable Options, Number of Shares (in shares) \| shares	965
Exercisable Options, Weighted Average Exercise Price (in usd per share)	$ 15.58
$15.91 - $22.27
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of Exercise Prices, Lower Limit (in usd per share)	15.91
Range of Exercise Prices, Upper Limit (in usd per share)	$ 22.27
Outstanding Options, Number of Shares (in shares) \| shares	156
Outstanding Options, Weighted Average Remaining Contractual Term (in Years)	4 years 2 months 12 days
Outstanding Options, Weighted Average Exercise Price (in usd per share)	$ 16.99
Exercisable Options, Number of Shares (in shares) \| shares	129
Exercisable Options, Weighted Average Exercise Price (in usd per share)	$ 16.91

Employee Benefit Plans - Assumptions Used to Calculate Fair Value Awards for ESPP (Details) - Employee Stock Purchase Plan - $ / shares	12 Months Ended
	Feb. 01, 2020	Feb. 02, 2019	Feb. 03, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Estimated fair value (in usd per share)	$ 7.06	$ 4.91	$ 6.03
Expected volatility (as a percent)	35.00%	33.00%	30.00%
Expected term (in years)	1 year 2 months 12 days	1 year 2 months 12 days	1 year 2 months 12 days
Risk-free interest rate (as a percent)	1.80%	2.60%	1.60%
Expected dividend yield (as a percent)	1.00%	1.40%	1.10%

Employee Benefit Plans - Assumptions Used to Calculate Fair Value Awards of Total Shareholder Return Awards (Details)	12 Months Ended
	Feb. 01, 2020	Feb. 02, 2019	Feb. 03, 2018
Total Shareholder Return Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected term (in years)	3 years	2 years 10 months 24 days	2 years 10 months 24 days
Expected volatility (as a percent)	32.00%	35.00%	35.00%
Average correlation coefficient of peer companies	0.5	0.5	0.5
Risk-free interest rate (as a percent)	2.40%	2.50%	1.40%
Expected dividend yield (as a percent)	1.00%	1.10%	1.60%
Value Creation Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected term (in years)	4 years 7 months 28 days
Expected volatility (as a percent)	35.00%
Risk-free interest rate (as a percent)	1.80%
Expected dividend yield (as a percent)	1.00%

Employee Benefit Plans - Employee 401(k) Plans (Details) - USD ($)	12 Months Ended
	Feb. 01, 2020	Feb. 02, 2019	Feb. 03, 2018
United States
Defined Contribution Plan Disclosure [Line Items]
Maximum contribution per employee	$ 4,000
Matching contributions to employees	$ 11,000,000.0	$ 8,600,000	$ 4,600,000
United States \| Defined Contribution Plan, Tranche One
Defined Contribution Plan Disclosure [Line Items]
Employee pre-tax contributions to 401(k) (as a percent)	4.00%
Employer match contributions percentage	100.00%
United States \| Defined Contribution Plan, Tranche Two
Defined Contribution Plan Disclosure [Line Items]
Employee pre-tax contributions to 401(k) (as a percent)	2.00%
Employer match contributions percentage	50.00%
United States \| Minimum
Defined Contribution Plan Disclosure [Line Items]
Employee pre-tax contributions to 401(k) (as a percent)	1.00%
United States \| Maximum
Defined Contribution Plan Disclosure [Line Items]
Employee pre-tax contributions to 401(k) (as a percent)	50.00%
Non-U.S. Defined Contribution Plan
Defined Contribution Plan Disclosure [Line Items]
Matching contributions to employees	$ 9,600,000	$ 16,800,000	$ 12,300,000

Income Taxes - U.S. and Non-U.S. Components of Income Before Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Feb. 01, 2020	Feb. 02, 2019	Feb. 03, 2018
Income Tax Disclosure [Abstract]
U.S. operations	$ (95,884)	$ 666,508	$ 24,377
Non-U.S. operations	894,267	(671,155)	426,827
Income before income taxes	$ 798,383	$ (4,647)	$ 451,204

Income Taxes - Provision (Benefit) for Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Feb. 01, 2020	Feb. 02, 2019	Feb. 03, 2018
Current income tax provision (benefit):
Federal	$ 5,223	$ 46,519	$ 776
State	(1,937)	5,959	2
Foreign	(4,137)	3,322	(2,541)
Total current income tax provision (benefit)	(851)	55,800	(1,763)
Deferred income tax provision (benefit):
Federal	(125,892)	134,336	10,136
State	(9,382)	(6,567)	83
Foreign	(649,884)	(9,122)	9,606
Total deferred income tax provision (benefit)	(785,158)	118,647	19,825
Total provision (benefit) for income taxes	$ (786,009)	$ 174,447	$ 18,062

Income Taxes - Reconciliation Statutory Rate and the Effective Tax Rate (Details) - USD ($) $ in Thousands	12 Months Ended
	Feb. 01, 2020	Feb. 02, 2019	Feb. 03, 2018
Income Tax Disclosure [Abstract]
Provision at U.S. statutory rate	$ 167,660	$ (976)	$ 152,134
State taxes, net of federal benefit	(9,878)	(9,652)	0
Difference in U.S. and non-U.S. tax rates	(181,625)	46,988	(137,419)
Foreign income inclusion in U.S.	13,736	167,093	0
Non-deductible compensation	6,196	13,215	0
Intellectual property transaction	(762,933)	93,777	0
Federal research and development credits	(42,604)	(29,503)	(21,620)
Uncertain tax positions	(3,913)	4,238	0
Change in valuation allowance	26,971	(110,921)	21,339
Other	381	188	3,628
Total provision (benefit) for income taxes	$ (786,009)	$ 174,447	$ 18,062

Income Taxes - Narrative (Details) $ in Thousands	1 Months Ended		12 Months Ended
Income Taxes - Narrative (Details) $ in Thousands	Jun. 30, 2014	Jul. 31, 1999	Feb. 01, 2020 USD ($) branch	Feb. 02, 2019 USD ($)	Feb. 03, 2018 USD ($)
Income Taxes [Line Items]
Federal statutory tax rate			21.00%		33.70%
Tax benefit for intellectual property transfer			$ 763,000
Deferred tax asset related to tax basis in intellectual property			659,000
Income tax benefit related to tax basis in intellectual property			659,000
Reversal of intangible assets, deferred tax liability			(104,000)
Valuation allowance			676,780	$ 597,829
Decrease in valuation allowance			79,000
Unrecognized tax benefit that would affect the effective income tax rate if recognized			127,300
Unrecognized tax benefits offset by deferred tax assets			146,600	135,600	$ 8,600
Unrecognized tax benefit, interest and penalties accrued			12,400	15,100	17,200
Interest and penalties related to unrecognized tax benefits included in consolidated statements of operation			1,400	$ 2,700	$ 2,300
Uncertain tax positions decrease from the lapse of the statutes of limitation in various jurisdictions during the next 12 months			15,200
Cash, cash equivalents and short-term investments			648,000
Unrecognized deferred tax liability on undistributed earnings of foreign subsidiaries			$ 176,000
Marvell Israel
Income Taxes [Line Items]
Number of branches entitled to tax programs \| branch			2
Foreign Subsidiaries
Income Taxes [Line Items]
Cash, cash equivalents and short-term investments			$ 421,000
Office of the Tax Commissioner, Bermuda
Income Taxes [Line Items]
Applicable statutory rate			0.00%	0.00%	0.00%
Economic Development Board of Singapore Pioneer Status
Income Taxes [Line Items]
Expiration of tax exemption, period	15 years	10 years
Federal
Income Taxes [Line Items]
Net operating loss carryforwards			$ 932,100
Operating loss carryforwards subject to annual limitation			718,500
Tax credit carryforwards subject to annual limitation			120,400
Federal \| Research Tax Credit
Income Taxes [Line Items]
Tax credit carryforwards			310,700
State \| California
Income Taxes [Line Items]
Net operating loss carryforwards			597,400
State \| California \| Research Tax Credit
Income Taxes [Line Items]
Tax credit carryforwards			440,500
State \| Other State \| Research and Investment Tax Credit
Income Taxes [Line Items]
Tax credit carryforwards			26,000
Foreign
Income Taxes [Line Items]
Net operating loss carryforwards			$ 514,800

Income Taxes - Deferred Tax Assets (Details) - USD ($) $ in Thousands	Feb. 01, 2020	Feb. 02, 2019
Deferred tax assets:
Net operating losses	$ 105,925	$ 134,598
Federal and California income tax credits	631,805	557,333
Intangible assets	632,537	0
Reserves and accruals	22,719	18,404
Share-based compensation	4,117	5,213
Lease liabilities	32,120	0
Gross deferred tax assets	1,429,223	715,548
Valuation allowance	(676,780)	(597,829)
Total deferred tax assets	752,443	117,719
Deferred tax liabilities:
Intangible assets	(69,771)	(185,973)
Fixed assets	(27,540)	(13,370)
Unremitted earnings of non-U.S. subsidiaries	(21,284)	(52,828)
Royalty income	0	(99,340)
Right of use assets	(25,290)	0
Total deferred tax liabilities	(143,885)	(351,511)
Net deferred tax assets (liabilities)	$ 608,558
Net deferred tax assets (liabilities)		$ (233,792)

Income Taxes - Classification of Deferred Tax Assets (Liabilities) (Details) - USD ($) $ in Thousands	Feb. 01, 2020	Feb. 02, 2019
Income Tax Disclosure [Abstract]
Non-current deferred tax assets	$ 639,791	$ 12,460
Non-current deferred tax liabilities	(31,233)	(246,252)
Net deferred tax assets (liabilities)	$ 608,558
Net deferred tax assets (liabilities)		$ (233,792)

Income Taxes - Changes in Unrecognized Tax Benefits (Details) - USD ($) $ in Thousands	12 Months Ended
	Feb. 01, 2020	Feb. 02, 2019	Feb. 03, 2018
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Unrecognized tax benefits as of the beginning of the period	$ 158,323	$ 23,252	$ 23,793
Increases related to acquired tax positions	9,215	131,631	0
Increases related to prior year tax positions	1,789	1,836	0
Decreases related to prior year tax positions	(6,747)	(6,259)	0
Increases related to current year tax positions	7,614	11,154	2,776
Settlements	(443)	0	0
Lapse in the statute of limitations	(4,044)	(3,198)	(3,341)
Foreign exchange (gain) loss		(93)
Foreign exchange (gain) loss	1,121		24
Gross amounts of unrecognized tax benefits as of the end of the period	$ 166,828	$ 158,323	$ 23,252

Net Income (Loss) Per Share - Computation of Basic and Diluted Net Income (Loss) Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Feb. 01, 2020	Feb. 02, 2019	Feb. 03, 2018
Numerator:
Income (loss) from continuing operations, net of tax	$ 1,584,391	$ (179,094)	$ 433,142
Income (loss) from discontinued operations, net of tax	0	0	87,689
Net income (loss)	$ 1,584,391	$ (179,094)	$ 520,831
Denominator:
Weighted average shares — basic (in shares)	664,709	591,232	498,008
Effect of dilutive securities:
Share-based awards (in shares)	11,385	0	11,659
Weighted average shares — diluted (in shares)	676,094	591,232	509,667
Income (loss) from continuing operations per share:
Basic (in usd per share)	$ 2.38	$ (0.30)	$ 0.87
Diluted (in usd per share)	2.34	(0.30)	0.85
Income (loss) from discontinued operations per share:
Basic (in usd per share)	0	0	0.18
Diluted (in usd per share)	0	0	0.17
Net income (loss) per share:
Net Income (loss) per share - Basic (in usd per share)	2.38	(0.30)	1.05
Net Income (loss) per share - diluted (in usd per share)	$ 2.34	$ (0.30)	$ 1.02

Net Income (Loss) Per Share - Anti-dilutive Potential Shares (Details) - shares shares in Thousands	12 Months Ended
	Feb. 01, 2020	Feb. 02, 2019	Feb. 03, 2018
Weighted average shares outstanding:
Share-based awards	1,124	20,435	412

Segment and Geographic Information - Additional Information (Details)	12 Months Ended
	Feb. 01, 2020 segment
Segment Reporting [Abstract]
Number of reportable segments	1

Segment and Geographic Information - Long-Lived Asset Information (Details) - USD ($) $ in Thousands	Feb. 01, 2020	Feb. 02, 2019
Revenues from External Customers and Long-Lived Assets [Line Items]
Property and equipment, net	$ 357,092	$ 318,978
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Property and equipment, net	265,685	228,744
Singapore
Revenues from External Customers and Long-Lived Assets [Line Items]
Property and equipment, net	37,717	21,929
India
Revenues from External Customers and Long-Lived Assets [Line Items]
Property and equipment, net	20,815	15,322
Israel
Revenues from External Customers and Long-Lived Assets [Line Items]
Property and equipment, net	15,808	18,754
China
Revenues from External Customers and Long-Lived Assets [Line Items]
Property and equipment, net	11,979	9,950
Others
Revenues from External Customers and Long-Lived Assets [Line Items]
Property and equipment, net	$ 5,088	$ 24,279

SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS (Details) - USD ($) $ in Thousands	12 Months Ended
	Feb. 01, 2020	Feb. 02, 2019	Feb. 03, 2018
Allowance for doubtful accounts
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Year	$ 2,637	$ 984
Additions	3,448	1,653
Deductions	(3,959)	0
Balance at End of Year	2,126	2,637	$ 984
Allowance for doubtful accounts and sales return reserve
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Year		2,500	1,384
Additions			2,352
Deductions			(1,236)
Balance at End of Year			2,500
Deferred tax asset valuation allowance
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Year	597,829	618,353	456,541
Additions	78,951	0	161,812
Deductions	0	(20,524)	0
Balance at End of Year	$ 676,780	$ 597,829	$ 618,353

Label	Element	Value
Cumulative Effect of New Accounting Principle in Period of Adoption	us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	$ 0
Cumulative Effect of New Accounting Principle in Period of Adoption	us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	34,218,000
Retained Earnings [Member]
Cumulative Effect of New Accounting Principle in Period of Adoption	us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	(1,969,000)
Cumulative Effect of New Accounting Principle in Period of Adoption	us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	34,218,000
Additional Paid-in Capital [Member]
Cumulative Effect of New Accounting Principle in Period of Adoption	us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	$ 1,969,000