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Document and Entity Information - shares shares in Millions	9 Months Ended
Document and Entity Information - shares shares in Millions	Nov. 01, 2014	Nov. 26, 2014
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Nov. 01, 2014
Document Fiscal Year Focus	2015
Document Fiscal Period Focus	Q3
Trading Symbol	MRVL
Entity Registrant Name	MARVELL TECHNOLOGY GROUP LTD
Entity Central Index Key	0001058057
Current Fiscal Year End Date	--02-01
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		511.1

CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Nov. 01, 2014	Feb. 01, 2014
Current assets:
Cash and cash equivalents	$ 1,183,993	$ 965,750
Short-term investments	1,218,785	1,003,655
Accounts receivable, net	445,050	453,496
Inventories	356,417	347,861
Prepaid expenses and other current assets	64,790	56,952
Deferred income taxes	17,327	11,506
Total current assets	3,286,362	2,839,220
Property and equipment, net	343,101	356,165
Long-term investments	10,077	16,279
Goodwill	2,029,945	2,029,945
Acquired intangible assets, net	34,283	49,035
Other non-current assets	145,039	160,366
Total assets	5,848,807	5,451,010
Current liabilities:
Accounts payable	341,431	316,389
Accrued liabilities	140,084	161,762
Accrued employee compensation	153,059	111,408
Deferred income	70,834	61,747
Total current liabilities	705,408	651,306
Non-current income taxes payable	73,167	81,325
Other non-current liabilities	36,322	42,469
Total liabilities	814,897	775,100
Commitments and contingencies (Note 10)
Shareholders' equity:
Common shares, $0.002 par value	1,022	1,005
Additional paid-in capital	3,041,400	2,941,650
Accumulated other comprehensive income (loss)	(2,964)	597
Retained earnings	1,994,452	1,732,658
Total shareholders' equity	5,033,910	4,675,910
Total liabilities and shareholders' equity	$ 5,848,807	$ 5,451,010

CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares	Nov. 01, 2014	Feb. 01, 2014
Common shares, par value	$ 0.002	$ 0.002

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Nov. 01, 2014	Nov. 02, 2013	Nov. 01, 2014	Nov. 02, 2013
Net revenue	$ 930,136	$ 931,226	$ 2,849,511	$ 2,472,651
Operating costs and expenses:
Cost of goods sold	454,974	464,981	1,426,575	1,186,478
Research and development	288,435	296,291	878,562	867,985
Selling and marketing	34,410	37,496	106,717	116,033
General and administrative	33,473	26,589	95,379	80,104
Amortization and write-off of acquired intangible assets	3,304	10,645	13,297	31,969
Total operating costs and expenses	814,596	836,002	2,520,530	2,282,569
Operating income	115,540	95,224	328,981	190,082
Interest and other income, net	4,764	1,536	18,952	12,949
Income before income taxes	120,304	96,760	347,933	203,031
Provision (benefit) for income taxes	5,000	(6,396)	(5,720)	(15,160)
Net income	$ 115,304	$ 103,156	$ 353,653	$ 218,191
Net income per share:
Basic	$ 0.22	$ 0.21	$ 0.69	$ 0.44
Diluted	$ 0.22	$ 0.21	$ 0.68	$ 0.43
Weighted average shares:
Basic	513,859	491,979	510,261	496,151
Diluted	519,907	501,189	520,309	502,401
Cash dividend declared per share	$ 0.06	$ 0.06	$ 0.18	$ 0.18

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Nov. 01, 2014	Nov. 02, 2013	Nov. 01, 2014	Nov. 02, 2013
Net income	$ 115,304	$ 103,156	$ 353,653	$ 218,191
Other comprehensive income, net of tax:
Net change in unrealized gain/loss on marketable securities	(1,209)	1,335	(1,052)	(1,199)
Net change in unrealized gain/loss on auction rate securities	305	(141)	448	(311)
Net change in unrealized gain/loss on cash flow hedges	(2,687)	435	(2,957)	419
Other comprehensive income (loss), net	(3,591)	1,629	(3,561)	(1,091)
Comprehensive income	$ 111,713	$ 104,785	$ 350,092	$ 217,100

- Definition

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

+ References + Details

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Nov. 01, 2014	Nov. 02, 2013
Cash flows from operating activities:
Net income	$ 353,653	$ 218,191
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	79,784	76,576
Share-based compensation	99,283	117,805
Amortization and write-off of acquired intangible assets	14,752	31,969
Other expense (income), net	(12,160)	5,994
Excess tax benefits from share-based compensation	(78)	(42)
Changes in assets and liabilities:
Accounts receivable	23,275	(136,491)
Inventories	(8,793)	(129,450)
Prepaid expenses and other assets	(8,621)	15,012
Accounts payable	16,937	128,311
Accrued liabilities and other non-current liabilities	(22,035)	(20,510)
Accrued employee compensation	41,651	13,965
Deferred income	9,087	26,220
Net cash provided by operating activities	586,735	347,550
Cash flows from investing activities:
Purchases of available-for-sale securities	(784,296)	(691,749)
Sales and maturities of available-for-sale securities	578,095	845,506
Investments in privately-held companies	(701)	(1,869)
Cash paid for acquisition, net		(2,551)
Purchases of technology licenses	(14,514)	(13,993)
Purchases of property and equipment	(48,615)	(53,283)
Net cash provided by (used in) investing activities	(270,031)	82,061
Cash flows from financing activities:
Repurchase of common stock	(43,774)	(376,285)
Proceeds from employee stock plans	71,308	97,276
Minimum tax withholding paid on behalf of employees for net share settlement	(25,586)	(10,406)
Dividend payments to shareholders	(91,859)	(89,560)
Payments on technology license obligations	(8,628)	(6,301)
Excess tax benefits from share-based compensation	78	42
Net cash used in financing activities	(98,461)	(385,234)
Net increase in cash and cash equivalents	218,243	44,377
Cash and cash equivalents at beginning of period	965,750	751,953
Cash and cash equivalents at end of period	$ 1,183,993	$ 796,330

The Company and Basis of Presentation

9 Months Ended

Nov. 01, 2014

The Company and Basis of Presentation

Note 1. The Company and Basis of Presentation

The Company

Marvell Technology Group Ltd., a Bermuda company (the “Company”), is a leading global semiconductor provider of high-performance application-specific standard products. The Company’s core strength of expertise 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 stand alone integrated circuits. The majority of the Company’s product portfolio leverages the ARM technology portfolio. 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 compared to individual components. The Company’s broad product portfolio includes devices for data storage, enterprise-class Ethernet data switching, Ethernet physical-layer transceivers, mobile handsets, connectivity and other consumer electronics.

Basis of Presentation

The Company’s fiscal year is the 52- or 53-week period ending on the Saturday closest to January 31. In a 52-week year, each fiscal quarter consists of 13 weeks. The additional week in a 53-week year is added to the fourth quarter, making such quarter consist of 14 weeks. Fiscal 2015 and 2014 each have a 52-week period.

The unaudited condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States (“GAAP”) for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and notes required by GAAP for annual financial statements. In the opinion of management, all adjustments consisting of normal and recurring entries considered necessary for a fair statement of the results for the interim periods have been included in the Company’s balance sheet as of November 1, 2014, the results of its operations for the three and nine months ended November 1, 2014 and November 2, 2013, its comprehensive income for the three and nine months ended November 1, 2014 and November 2, 2013, and its cash flows for the nine months ended November 1, 2014 and November 2, 2013. The February 1, 2014 condensed consolidated balance sheet data was derived from the audited consolidated financial statements included in the Company’s Annual Report on Form 10-K for the fiscal year ended February 1, 2014, but does not include all disclosures required for annual periods.

These condensed consolidated financial statements and related notes are unaudited and should be read in conjunction with the Company’s audited financial statements and related notes included in the Company’s Annual Report on Form 10-K for the fiscal year ended February 1, 2014 as filed on March 27, 2014 with the Securities and Exchange Commission. The results of operations for the three and nine months ended November 1, 2014 are not necessarily indicative of the results that may be expected for any other interim period or for the full fiscal year.

Use of Estimates

The preparation of consolidated financial statements in conformity with 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 assets and 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. In addition, the Company uses assumptions when employing the Black-Scholes valuation model to calculate the fair value of share-based awards that are granted. Actual results could differ from these estimates, and such differences could affect the results of operations reported in future periods.

Principles of Consolidation

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

Recent Accounting Pronouncements

9 Months Ended

Nov. 01, 2014

Recent Accounting Pronouncements

Note 2. Recent Accounting Pronouncements

Accounting Pronouncements Not Yet Effective

In April 2014, the Financial Accounting Standards Board (“FASB”) issued an amendment to its guidance regarding the reporting requirements of discontinued operations. Under this amended guidance, a discontinued operation is defined as a disposal of a component or group of components that is disposed of or is classified as held for sale and represents a strategic shift that has (or will have) a major effect on an entity’s operations and financial results. In addition, this amendment requires an entity to present, for each comparative period, the assets and liabilities of a disposal group that includes a discontinued operation separately in the asset and liability sections, respectively, of the statement of financial position and additional disclosures about discontinued operations. This amended guidance is effective for annual and interim reporting periods beginning after December 15, 2014. The Company expects this guidance to have an impact on its financial statements only in the event of a future disposition which meets the criteria.

In May 2014, the FASB issued a new standard on the recognition of revenue from contracts with customers, which will supersede nearly all existing revenue recognition guidance under GAAP. The core principal of the standard is that an entity should recognize revenue when a customer has control of promised goods or services in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. It also requires additional disclosure about the nature, amount, timing and uncertainty of revenue and cash flows arising from customer contracts, and assets recognized from costs incurred to obtain or fulfill a contract, including significant judgments and changes in judgments. This standard is effective for annual and interim reporting periods beginning after December 15, 2016 and will be effective for the Company’s first quarter of fiscal 2018. Early adoption is not permitted. The standard allows for either full retrospective or modified retrospective adoption. We are evaluating the transition method that will be elected and the potential effects of its adoption on our financial statements.

- Definition

The entire disclosure of changes in accounting principles, including adoption of new accounting pronouncements, that describes the new methods, amount and effects on financial statement line items.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Change in Accounting Principle
-URI http://asc.fasb.org/extlink&oid=6507316

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Direct Effects of a Change in Accounting Principle
-URI http://asc.fasb.org/extlink&oid=6510796

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=28359718&loc=d3e22583-107794

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Indirect Effects of a Change in Accounting Principle
-URI http://asc.fasb.org/extlink&oid=6515603

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=28359718&loc=d3e22580-107794

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 270
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.10-01.(b)(6))
-URI http://asc.fasb.org/extlink&oid=27015980&loc=d3e46468-122699

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Accounting Change
-URI http://asc.fasb.org/extlink&oid=6503790

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=28359718&loc=d3e22499-107794

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Retrospective Application
-URI http://asc.fasb.org/extlink&oid=6523989

Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 270
-SubTopic 10
-Section 45
-Paragraph 13
-URI http://asc.fasb.org/extlink&oid=6372559&loc=d3e765-108305

Reference 11: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 270
-SubTopic 10
-Section 45
-Paragraph 12
-URI http://asc.fasb.org/extlink&oid=6372559&loc=d3e725-108305

Reference 12: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 01
-Paragraph b
-Subparagraph 6
-Article 10

+ Details

Investments

9 Months Ended

Nov. 01, 2014

Investments

Note 3. Investments

The following tables summarize the Company’s investments (in thousands):


	November 1, 2014
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Value
Short-term investments:
Available-for-sale:
Corporate debt securities	$	842,487	$	2,121	$	(756	)	$	843,852
U.S. government and agency debt		234,649		136		(32	)		234,753
Asset backed securities		85,893		40		(67	)		85,866
Foreign government and agency debt		28,079		25		(20	)		28,084
Municipal debt securities		23,195		41		(6	)		23,230
Auction rate securities		3,000		—		—			3,000

Total short-term investments		1,217,303		2,363		(881	)		1,218,785
Long-term investments:
Available-for-sale:
Auction rate securities		12,500		—		(2,423	)		10,077

Total long-term investments		12,500		—		(2,423	)		10,077

Total investments	$	1,229,803	$	2,363	$	(3,304	)	$	1,228,862


	February 1, 2014
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Value
Short-term investments:
Available-for-sale:
Corporate debt securities	$	587,095	$	2,789	$	(370	)	$	589,514
U.S. government and agency debt		301,423		128		(72	)		301,479
Asset backed securities		76,220		89		(38	)		76,271
Foreign government and agency debt		20,324		12		(44	)		20,292
Municipal debt securities		16,059		44		(4	)		16,099

Total short-term investments		1,001,121		3,062		(528	)		1,003,655
Long-term investments:
Available-for-sale:
Auction rate securities		19,150		—		(2,871	)		16,279

Total long-term investments		19,150		—		(2,871	)		16,279

Total investments	$	1,020,271	$	3,062	$	(3,399	)	$	1,019,934

As of November 1, 2014, the Company’s investment portfolio included auction rate securities with an aggregate par value of $12.5 million classified as long-term investments. Although these securities have continued to pay interest, there is currently limited trading volume. To estimate the fair value of the auction rate securities, the Company uses a discounted cash flow model based on estimated timing and amount of future interest and principal payments. In developing the cash flow model, the Company considers the credit quality and liquidity of the underlying securities and related issuer, the collateralization of underlying security investments and other considerations. The fair value of these auction rate securities as of November 1, 2014 was $2.4 million less than their par value. Based on the Company’s balance of approximately $2.4 billion in cash, cash equivalents and short-term investments, and the fact that the Company continues to generate positive cash flow from operations on a quarterly basis, the Company does not anticipate having to sell these securities below par value and does not have the intent to sell these auction rate securities until recovery. Since the Company considers the impairment to be temporary, the Company recorded the unrealized loss to accumulated other comprehensive income, a component of shareholders’ equity.

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


	Three Months Ended						Nine Months Ended
	November 1, 2014			November 2, 2013			November 1, 2014			November 2, 2013
Gross realized gains	$	415		$	497		$	1,367		$	1,289
Gross realized losses		(25	)		(216	)		(50	)		(253	)

Total net realized gains	$	390		$	281		$	1,317		$	1,036

The contractual maturities of available-for-sale securities are presented in the following table (in thousands):


	November 1, 2014				February 1, 2014
	Amortized Cost		Estimated Fair Value		Amortized Cost		Estimated Fair Value
Due in one year or less	$	356,973	$	357,266	$	309,543	$	309,861
Due between one and five years		848,587		849,763		686,062		688,280
Due over five years		24,243		21,833		24,666		21,793

	$	1,229,803	$	1,228,862	$	1,020,271	$	1,019,934

For individual securities that have been in a continuous unrealized loss position, the fair value and gross unrealized loss for these securities aggregated by investment category and length of time in an unrealized position are presented in the following tables (in thousands):


	November 1, 2014
	Less than 12 months					12 months or more					Total
	Fair Value		Unrealized Loss			Fair Value		Unrealized Loss			Fair Value		Unrealized Loss
Corporate debt securities	$	318,039	$	(746	)	$	992	$	(10	)	$	319,031	$	(756	)
U.S. government and agency debt		59,046		(32	)		—		—			59,046		(32	)
Asset backed securities		36,510		(67	)		—		—			36,510		(67	)
Foreign government and agency debt		16,572		(20	)		—		—			16,572		(20	)
Municipal debt securities		3,202		(6	)		—		—			3,202		(6	)
Auction rate securities		—		—			10,077		(2,423	)		10,077		(2,423	)

Total securities	$	433,369	$	(871	)	$	11,069	$	(2,433	)	$	444,438	$	(3,304	)


	February 1, 2014
	Less than 12 months					12 months or more					Total
	Fair Value		Unrealized Loss			Fair Value		Unrealized Loss			Fair Value		Unrealized Loss
Corporate debt securities	$	110,903	$	(366	)	$	2,105	$	(4	)	$	113,008	$	(370	)
U.S. government and agency debt		93,118		(72	)		—		—			93,118		(72	)
Asset backed securities		18,865		(19	)		1,912		(19	)		20,777		(38	)
Foreign government and agency debt		14,299		(44	)		—		—			14,299		(44	)
Municipal debt securities		723		(4	)		—		—			723		(4	)
Auction rate securities		—		—			16,279		(2,871	)		16,279		(2,871	)

Total securities	$	237,908	$	(505	)	$	20,296	$	(2,894	)	$	258,204	$	(3,399	)

Supplemental Financial Information

9 Months Ended

Nov. 01, 2014

Supplemental Financial Information

Note 4. Supplemental Financial Information (in thousands)


	November 1, 2014		February 1, 2014
Inventories:
Work-in-process	$	197,671	$	195,495
Finished goods		158,746		152,366

Total inventories	$	356,417	$	347,861


	November 1, 2014			February 1, 2014
Property and equipment, net:
Machinery and equipment	$	594,702		$	562,038
Buildings		144,320			144,320
Computer software		97,452			96,096
Land		53,373			53,373
Building improvements		49,786			49,645
Leasehold improvements		50,187			49,060
Furniture and fixtures		27,746			27,621
Construction in progress		5,396			2,911

		1,022,962			985,064
Less: Accumulated depreciation and amortization		(679,861	)		(628,899	)

Total property and equipment, net	$	343,101		$	356,165


	November 1, 2014		February 1, 2014
Other non-current assets:
Technology and other licenses	$	68,819	$	83,521
Deferred tax assets		23,442		19,282
Investments in privately-held companies		9,267		14,565
Prepaid land use rights		13,510		13,744
Deposits		11,918		12,433
Other		18,083		16,821

Total other non-current assets	$	145,039	$	160,366


	November 1, 2014		February 1, 2014
Accrued liabilities:
Accrued rebates	$	51,407	$	61,616
Accrued royalties		25,426		36,568
Technology license obligations		17,079		18,482
Accrued legal expense		9,857		14,589
Other		36,315		30,507

Total accrued liabilities	$	140,084	$	161,762


	November 1, 2014		February 1, 2014
Other non-current liabilities:
Technology license obligations	$	19,085	$	28,959
Long-term accrued employee compensation		4,622		4,370
Other		12,615		9,140

Other non-current liabilities	$	36,322	$	42,469

Accumulated other comprehensive income (loss)

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


	Unrealized Gain (Loss) on Marketable Securities			Unrealized Gain (Loss) on Auction Rate Securities			Unrealized Gain (Loss) on Cash Flow Hedges			Total
Balance at February 1, 2014	$	2,534		$	(2,871	)	$	934		$	597
Other comprehensive income before reclassifications		67			448			(1,603	)		(1,088	)
Amounts reclassified from accumulated other comprehensive income		(1,119	)		—			(1,354	)		(2,473	)

Other comprehensive income (loss)		(1,052	)		448			(2,957	)		(3,561	)

Balance at November 1, 2014	$	1,482		$	(2,423	)	$	(2,023	)	$	(2,964	)


	Unrealized Gain (Loss) on Marketable Securities			Unrealized Gain (Loss) on Auction Rate Securities			Unrealized Gain (Loss) on Cash Flow Hedges			Total
Balance at February 2, 2013	$	2,742		$	(2,681	)	$	1,087		$	1,148
Other comprehensive income before reclassifications		(276	)		(311	)		3,103			2,516
Amounts reclassified from accumulated other comprehensive income		(923	)		—			(2,684	)		(3,607	)

Other comprehensive income (loss)		(1,199	)		(311	)		419			(1,091	)

Balance at November 2, 2013	$	1,543		$	(2,992	)	$	1,506		$	57

The amounts reclassified from accumulated other comprehensive income by components are presented in the following table (in thousands):


	Three Months Ended				Nine Months Ended
Affected Line Item in the Statement of Operations	November 1, 2014		November 2, 2013		November 1, 2014		November 2, 2013
Available-for-sale securities:
Interest and other income, net	$	264	$	380	$	1,119	$	923
Cash flow hedges:
Cost of goods sold		22		41		85		149
Research and development		298		648		1,156		2,319
Selling and marketing		29		53		110		198
General and administrative		1		5		3		18

Total	$	614	$	1,127	$	2,473	$	3,607

Net income per share

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


	Three Months Ended				Nine Months Ended
	November 1, 2014		November 2, 2013		November 1, 2014		November 2, 2013
Numerator:
Net income	$	115,304	$	103,156	$	353,653	$	218,191

Denominator:
Weighted average shares — basic		513,859		491,979		510,261		496,151
Effect of dilutive securities:
Share-based awards		6,048		9,210		10,048		6,250

Weighted average shares — diluted		519,907		501,189		520,309		502,401

Net income per share:
Basic	$	0.22	$	0.21	$	0.69	$	0.44
Diluted	$	0.22	$	0.21	$	0.68	$	0.43

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


	Three Months Ended				Nine Months Ended
	November 1, 2014		November 2, 2013		November 1, 2014		November 2, 2013
Weighted average shares outstanding from stock options:
Time-based options		25,092		43,167		22,331		39,854
Market-based options		2,245		2,719		2,306		2,732

		27,337		45,886		24,637		42,586

Weighted average exercise price:
Time-based options	$	17.19	$	14.71	$	17.61	$	15.18

Market-based options	$	15.43	$	15.42	$	15.43	$	15.43

Total	$	17.04	$	14.75	$	17.41	$	15.20

Anti-dilutive potential shares for stock options are excluded from the calculation of diluted earnings per share for the periods reported above because either their exercise price exceeded the average market price during the period or certain stock options with exercise prices less than the average market price were determined to be anti-dilutive based on applying the treasury stock method.

Derivative Financial Instruments

9 Months Ended

Nov. 01, 2014

Derivative Financial Instruments

Note 5. Derivative Financial Instruments

The Company manages some of its foreign currency exchange rate risk through the purchase of foreign currency exchange contracts that hedge against the short-term effect of currency fluctuations. Beginning in fiscal 2015, the Company entered into contracts to hedge the Chinese yuan in addition to the Israeli shekel as operating expenses in China continue to grow. The Company’s policy is to enter into foreign currency forward contracts with maturities generally less than 12 months that mitigate the effect of rate fluctuations on certain local currency denominated operating expenses. All derivative instruments are recorded at fair value in either prepaid expenses and other current assets or accrued liabilities. The Company reports cash flows from derivative instruments in cash flows from operating activities. The Company uses quoted prices to value its derivative instruments.

The notional amounts of outstanding forward contracts were as follows (in thousands):


	November 1, 2014				February 1, 2014
	Buy Contracts		Sell Contracts		Buy Contracts
Israeli shekel	$	51,047	$	—	$	39,670
Chinese yuan		15,614		—		—
Euro		5,371		5,376		5,718
Swedish krona		—		—		3,709

	$	72,032	$	5,376	$	49,097

At February 1, 2014, there were no sell contracts. The fair value of foreign currency exchange contracts was not significant as of any period presented.

Cash Flow Hedges. The Company designates and documents its foreign currency forward exchange contracts as cash flow hedges for certain operating expenses. The Company evaluates and calculates the effectiveness of each hedge at least quarterly. The effective change is recorded in accumulated other comprehensive income and is subsequently reclassified to operating expense when the hedged expense is recognized. Ineffectiveness is recorded in interest and other income, net.

Other Foreign Currency Forward Contracts. The Company enters into foreign currency forward exchange contracts to hedge certain assets and liabilities denominated in various foreign currencies that it does not designate as hedges for accounting purposes. The maturities of these contracts are generally less than 12 months. Gains or losses arising from the remeasurement of these contracts to fair value each period are recorded in interest and other income, net.

- Definition

The entire disclosure for derivative instruments and hedging activities including, but not limited to, risk management strategies, non-hedging derivative instruments, assets, liabilities, revenue and expenses, and methodologies and assumptions used in determining the amounts.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 30
-Section 45
-Paragraph 1
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Reference 2: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
-Topic 815
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-Section 50
-Paragraph 4C
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Reference 3: http://www.xbrl.org/2003/role/presentationRef
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Reference 4: http://www.xbrl.org/2003/role/presentationRef
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Reference 5: http://www.xbrl.org/2003/role/presentationRef
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Reference 6: http://www.xbrl.org/2003/role/presentationRef
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Reference 7: http://www.xbrl.org/2003/role/presentationRef
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Reference 8: http://www.xbrl.org/2003/role/presentationRef
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Reference 9: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
-Topic 815
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-Paragraph 1A
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Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 11: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 12: http://www.xbrl.org/2003/role/presentationRef
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Reference 13: http://www.xbrl.org/2003/role/presentationRef
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Reference 14: http://www.xbrl.org/2003/role/presentationRef
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Reference 15: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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Reference 16: http://www.xbrl.org/2003/role/presentationRef
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Reference 17: http://www.xbrl.org/2003/role/presentationRef
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Reference 18: http://www.xbrl.org/2003/role/presentationRef
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Reference 19: http://www.xbrl.org/2003/role/presentationRef
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+ Details

Fair Value Measurements

9 Months Ended

Nov. 01, 2014

Fair Value Measurements

Note 6. 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—Include 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, corporate debt securities, foreign government and agency debt, municipal debt securities and asset backed securities as the market inputs to value these instruments consist of market yields, reported trades and broker/dealer quotes, which are corroborated with observable market data. In addition, forward contracts, the severance pay fund and an auction rate security are classified within Level 2 as the valuation inputs are based on quoted prices and market observable data of similar instruments. The Company’s Level 3 assets include its investments in auction rate securities, which are classified within Level 3 because there are currently no active markets for the auction rate securities and consequently the Company is unable to obtain independent valuations from market sources. Therefore, the auction rate securities are valued using a discounted cash flow model. Some of the inputs to the cash flow model are unobservable in the market. The total amount of assets measured using Level 3 valuation methodologies represented 0.2% of total assets as of November 1, 2014.

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


	Level 1		Level 2		Level 3		Portion of Carrying Value Measured at Fair Value at November 1, 2014
Items measured at fair value on a recurring basis:
Assets
Cash equivalents:
U.S. government and agency debt	$	12,200	$	—	$	—	$	12,200
Money market funds		16,290		—		—		16,290
Time deposits		—		206,580		—		206,580
Municipal debt securities		—		1,908		—		1,908
Corporate debt securities		—		28,332		—		28,332
Short-term investments:
U.S. government and agency debt		234,753		—		—		234,753
Corporate debt securities		—		843,852		—		843,852
Asset backed securities		—		85,866		—		85,866
Foreign government and agency debt		—		28,084		—		28,084
Municipal debt securities		—		23,230		—		23,230
Auction rate securities				3,000				3,000
Prepaid expenses and other current assets:
Foreign currency forward contracts		—		384		—		384
Long-term investments:
Auction rate securities		—		—		10,077		10,077
Other non-current assets:
Severance pay fund		—		1,841		—		1,841

Total assets	$	263,243	$	1,223,077	$	10,077	$	1,496,397

Liabilities
Accrued liabilities:
Foreign currency forward contracts	$	—	$	2,402	$	—	$	2,402


	Level 1		Level 2		Level 3		Portion of Carrying Value Measured at Fair Value at February 1, 2014
Items measured at fair value on a recurring basis:
Assets
Cash equivalents:
U.S. government and agency debt	$	11,999	$	—	$	—	$	11,999
Money market funds		2,804		—		—		2,804
Time deposits		—		247,958		—		247,958
Municipal debt securities		—		4,800		—		4,800
Corporate debt securities		—		3,400		—		3,400
Short-term investments:
U.S. government and agency debt		301,479		—		—		301,479
Corporate debt securities		—		589,514		—		589,514
Asset backed securities		—		76,271		—		76,271
Foreign government and agency debt		—		20,292		—		20,292
Municipal debt securities		—		16,099		—		16,099
Prepaid expenses and other current assets:
Foreign currency forward contracts		—		1,012		—		1,012
Long-term investments:
Auction rate securities		—		—		16,279		16,279
Other non-current assets:
Severance pay fund		—		2,193		—		2,193

Total assets	$	316,282	$	961,539	$	16,279	$	1,294,100

Liabilities
Accrued liabilities:
Foreign currency forward contracts	$	—	$	26	$	—	$	26

The following table summarizes the change in fair value for Level 3 assets (in thousands):


	Nine Months Ended
	November 1, 2014			November 2, 2013
Beginning balance	$	16,279		$	16,769
Sales and redemptions		(3,650	)		(300	)
Transfer out		(3,000	)		—
Unrealized losses included in accumulated other comprehensive income		448			(311	)

Ending balance	$	10,077		$	16,158

During the three months ended November 1, 2014, the Company received notification by the issuer of a mandatory full call on November 6, 2014 of an auction rate security to be redeemed at par value. As a result, the Company classified the security within Level 2 based on the issuer’s quoted price. Subsequent to the end of the quarter, the auction rate security was fully redeemed.

- 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

Acquired Intangible Assets, Net

9 Months Ended

Nov. 01, 2014

Acquired Intangible Assets, Net

Note 7. Acquired Intangible Assets, Net

The carrying amount of acquired intangible assets, net, are as follows (in thousands):


		November 1, 2014							February 1, 2014
	Range of Useful Lives	Gross Carrying Amounts		Accumulated Amortization and Write-Offs			Net Carrying Amount		Gross Carrying Amounts		Accumulated Amortization and Write-Offs			Net Carrying Amount
Purchased technology	4 - 6 years	$	49,240	$	(27,369	)	$	21,871	$	49,240	$	(20,634	)	$	28,606
Core technology	5 - 8 years		2,350		(1,850	)		500		2,350		(1,583	)		767
Trade names	5 years		1,300		(763	)		537		1,300		(568	)		732
Customer intangibles	5 - 6 years		28,600		(17,225	)		11,375		28,600		(13,056	)		15,544
IPR&D			—		—			—		3,386		—			3,386

Total intangible assets, net		$	81,490	$	(47,207	)	$	34,283	$	84,876	$	(35,841	)	$	49,035

The Company recorded a charge to write-off $3.4 million of IPR&D in the nine months ended November 1, 2014, upon the Company’s decision to discontinue the related project.

Based on the identified intangible assets recorded at November 1, 2014, the future amortization expense for the next five fiscal years is as follows (in thousands):


Fiscal Year
Remainder of fiscal 2015	$	3,585
2016		12,212
2017		11,027
2018		5,599
2019		1,860
Thereafter		—

	$	34,283

Restructuring

9 Months Ended

Nov. 01, 2014

Restructuring

Note 8. Restructuring

In connection with ongoing evaluations of its business, the Company decided to streamline its operations, primarily in Israel to align with its overall strategic plan, and to discontinue the development of a product it originally acquired from a business that it previously purchased.

The following table presents detail of the related restructuring charges recorded by the Company (in thousands):


	November 1, 2014
	Three Months Ended		Nine Months Ended
Severance and related costs	$	72	$	5,107
Facilities and related costs		1,117		1,815
Other exit-related costs		13		86

		1,202		7,008
Write-off of assets:
Equipment		—		17
Acquired intangible asset		—		3,386

	$	1,202	$	10,411

Facilities and related costs include a charge for a portion of the lease obligation related to vacating the floors the Company no longer planned to occupy in one of its Israel facilities. The write-off of an acquired intangible asset in the nine months ended November 1, 2014 was due to the Company’s decision to discontinue the related project. Other exit-related costs are primarily associated with ongoing operating expenses related to vacated facilities under restructure actions in previous fiscal years.

The following table presents details of restructuring charges by functional line item (in thousands):


	Three Months Ended				Nine Months Ended
	November 1, 2014		November 2, 2013		November 1, 2014		November 2, 2013
Research and development	$	87	$	2,886	$	5,181	$	2,886
Selling and marketing		—		795		—		795
General and administrative		1,115		527		1,844		933
Write-off of acquired intangible assets		—		—		3,386		—

	$	1,202	$	4,208	$	10,411	$	4,614

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):


	Severance and Related Costs			Facilities and Related Costs			Other Exit-Related Costs			Total
Balance at February 1, 2014	$	51		$	2,383		$	19		$	2,453
Restructuring charges		5,107			1,815			86			7,008
Net cash payments		(5,124	)		(1,828	)		(105	)		(7,057	)

Balance at November 1, 2014	$	34		$	2,370		$	—		$	2,404

The severance costs included in the table above are expected to be paid by the end of the calendar year. The balance at November 1, 2014 for facility and related costs includes remaining payments under lease obligations related to vacated space that are expected to be paid through fiscal 2018.

Income Tax

9 Months Ended

Nov. 01, 2014

Income Tax

Note 9. Income Tax

The income tax provision for the three months ended November 1, 2014 included the current income tax liability of $4.5 million and a $0.9 million increase in unrecognized tax benefits from interest on non-U.S. jurisdictions, which was partially offset by a $0.4 million tax benefit due to a return-to-provision adjustment upon the filing of a tax return in a non-U.S. jurisdiction. The income tax benefit for the nine months ended November 1, 2014 included the current income tax liability of $15.1 million, which was offset by tax benefits of $8.9 million from a net reduction in unrecognized tax benefits, $11.5 million from an increase in the net deferred tax assets because of the tax rate change in Singapore and $0.4 million from a return-to-provision adjustment upon the filing of a tax return in a non-U.S. jurisdiction. The net reduction in unrecognized tax benefits arose from the release of $13.2 million due to the expiration of statutes of limitation, which was reduced by a $4.3 million increase in current unrecognized tax benefit estimates in various non-U.S. jurisdictions.

The income tax benefit for the three months ended November 2, 2013 included the current income tax liability of $4.3 million, which was offset by a net reduction in unrecognized tax benefits of $7.3 million, a $2.5 million tax benefit due to return-to-provision adjustments upon the filing of tax returns and a $0.9 million tax benefit from an increase in the deferred tax asset of a non-U.S. entity due to a change in its statutory tax rate. The net reduction in unrecognized tax benefits primarily arose from the expiration of the statute of limitations. The income tax benefit for the nine months ended November 2, 2013 included the current income tax liability of $11.3 million plus $0.7 million in settlements of audits in non-U.S. jurisdictions, which were offset by a net reduction in unrecognized tax benefits of $23.8 million, a $2.5 million tax benefit due to return-to-provision adjustments upon filing of tax returns in three months ended November 2, 2013 and a $0.9 million tax benefit from an increase in the deferred tax asset of a non-U.S. entity due to a change in its statutory tax rate in the three months ended November 2, 2013. The net reduction in unrecognized tax benefits primarily arose from the expiration of statute of limitations in non-U.S. jurisdictions and from the settlement of two audits in non-U.S. jurisdictions (one for $3.5 million and the other for $4.1 million), less an increase in current unrecognized tax estimates.

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 $17 million from the lapse of statutes of limitation in various jurisdictions during the next 12 months. Government tax authorities from several non-U.S. jurisdictions are also examining returns. The Company believes that it has adequately provided for any reasonably foreseeable outcomes related to its tax audits and that any settlement will not have a material effect on its results at this time.

The Company operates under tax incentives in certain countries, which may be extended if certain additional requirements are satisfied. The tax incentives are conditional upon meeting certain employment and investment thresholds. The impact of these tax incentives decreased foreign taxes by $1.8 million and $12.3 million for the three and nine months ended November 1, 2014, respectively, and $5.7 million and $14.9 million for the three and nine months ended November 2, 2013, respectively. The benefit of the tax incentives on net income per share was less than $0.01 per share for the three months ended November 1, 2014 and $0.02 per share for the nine months ended November 1, 2014, compared to $0.01 per share for the three months ended November 2, 2013 and $0.03 per share for the nine months ended November 2, 2013.

Our principal source of liquidity as of November 1, 2014 consisted of approximately $2.4 billion of cash, cash equivalents and short-term investments, of which approximately $900 million was held by foreign subsidiaries (outside Bermuda). Approximately $500 million of this amount held by foreign subsidiaries is related to undistributed earnings, which have been indefinitely reinvested outside of Bermuda. These funds are primarily held in Israel, the United States and Switzerland. We have 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. If such funds were needed by the parent company in Bermuda or if the amounts were otherwise no longer considered indefinitely reinvested, we would incur a tax expense of approximately $150 million.

Commitments and Contingencies

9 Months Ended

Nov. 01, 2014

Commitments and Contingencies

Note 10. Commitments and Contingencies

Purchase Commitments

Under the Company’s manufacturing relationships with its foundry partners, cancellation of all outstanding purchase orders are allowed but require payment of all costs and expenses incurred through the date of cancellation. As of November 1, 2014, these foundries had incurred approximately $213.9 million of manufacturing costs and expenses relating to the Company’s outstanding purchase orders.

Intellectual Property Indemnification

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 under an infringement claim as well as the attorneys’ fees and costs. 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. 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.

Contingencies

The Company and certain of its subsidiaries are currently parties to various legal proceedings, including those noted in this section. The legal proceedings and claims described below could result in substantial costs and could divert the attention and resources of the Company’s management. The Company is also engaged in other legal proceedings and claims not described below, which arise in the ordinary course of its business. Litigation is subject to inherent uncertainties and unfavorable rulings could occur. An unfavorable ruling in litigation could require the Company to pay damages, one-time license fees or ongoing royalty payments, and could prevent the Company from manufacturing or selling some of its products or limit or restrict the type of work that employees involved in such litigation may perform for the Company, any of which could adversely affect financial results in future periods. The Company believes that its products do not infringe valid and enforceable claims and it will continue to conduct a vigorous defense in these proceedings. However, there can be no assurance that these matters will be resolved in a manner that is not adverse to the Company’s business, financial condition, results of operations or cash flows.

As of November 1, 2014, the Company has a $3.2 million accrued liability related to certain legal proceedings described below in this section. The reduction in the accrued liability from the prior quarter related to litigation matters that were paid or resolved favorably during the quarter. The amount recorded does not relate to the litigation with Carnegie Mellon University (“CMU”). Other than for the matters that the Company has recognized in the consolidated financial statements, it has not recorded any amounts for contingent losses associated with the matters described below based on its belief that losses, while reasonably possible, are not probable. Unless otherwise stated, the Company is currently unable to predict the final outcome of these lawsuits and therefore cannot determine the likelihood of loss nor estimate a range of possible loss.

Carnegie Mellon University Litigation. On March 6, 2009, CMU filed a complaint in the U.S. District Court for the Western District of Pennsylvania naming Marvell Semiconductor, Inc. (“MSI”) and the Company as defendants and alleging patent infringement. CMU has asserted U.S. Patent Nos. 6,201,839 and 6,438,180 (collectively, the “CMU patents in suit”), which relate to read-channel integrated circuit devices and the hard disk drive (“HDD”) incorporating such devices. A jury trial began on November 26, 2012. On December 26, 2012, a jury delivered a verdict that found the CMU patents in suit were literally and willfully infringed and valid, and awarded past damages in the amount of $1.17 billion. CMU sought in its post-trial motions enhanced damages up to three times the jury verdict, pre-judgment interest up to $322 million, post-judgment interest, supplemental damages, attorneys’ fees, and an injunction and/or ongoing royalties. Post-trial motions were heard on May 1 and 2, 2013. On June 26, 2013, the District Court denied CMU’s post-trial motion for attorney fees without prejudice. On August 23, 2013, the District Court denied the Company’s motion for mistrial. On September 23, 2013, the District Court denied the Company’s motion for judgment as a matter of law or a new trial on non-infringement, invalidity and other non-damages issue as well as the Company’s motion for reduced damages. On the same day, the District Court granted-in-part CMU’s motion for a finding of willful infringement and enhanced damages, reserving its further rulings on any enhancement of the verdict for a separate opinion. On December 6, 2013, CMU filed a motion to permit registration of judgment and a motion for supplemental relief including a request to enjoin future share repurchases, any leveraged buyout or similar asset leveraging transaction, and dividends (including the dividend scheduled for December 23, 2013), in the absence of a court approved bond or other security. On December 23, 2013, the District Court denied the motions. On January 8, 2014, CMU filed a motion for telephonic status conference, which was denied on January 28, 2014. On January 14, 2014, the District Court denied the Company’s post-trial motion on laches. On March 31, 2014, the District Court rejected CMU’s motion for an injunction. The District Court also denied CMU’s request for pre-judgment interest, and substantially scaled back CMU’s request for enhanced damages. Based on these decisions, the District Court calculated the damages including enhancement to total approximately $1.54 billion, and held that, under its decision, CMU is entitled to post judgment interest and an ongoing royalty. On May 7, 2014, the District Court entered final judgment, from which the Company filed a notice of appeal on May 14, 2014. The Company filed its opening appeal brief on August 4, 2014. CMU filed its opposition brief on October 20, 2014 and the Company filed its reply brief on November 20, 2014. The District Court has required the Company to report ongoing royalties under the current judgment. Based on the royalty rate assessed by the District Court, such additional royalties for the period of time commencing on the date ordered by the District Court, January 15, 2013, through November 1, 2014 could be as much as $350 million. The Company has secured certain surety bonds for the duration of the appeal to stay execution of judgment pending the appeal. See “—Surety Bond.”

The Company and MSI believe that the evidence and the law do not support the jury’s findings of infringement, validity and the award of damages and do not believe a material loss is probable. The Company believes that there are strong grounds for appeal and the Company and MSI are currently pursuing an appeal before the U.S. Court of Appeals for the Federal Circuit in Washington, D.C. The Company believes the low end of the possible range of loss is zero, but it cannot reasonably estimate the upper range of the possible loss, as a number of factors could significantly change the assessment of damages.

USEI Litigation. On October 9, 2009, U.S. Ethernet Innovations, LLC (“USEI”) filed a complaint in the U.S. District Court for the Eastern District of Texas, in which USEI has accused a number of system manufacturers, including the Company’s customers, of patent infringement (the “USEI litigation”). Specifically, USEI has asserted that these customers infringe U.S. Patent Nos. 5,307,459, 5,434,872, 5,732,094 and 5,299,313, which relate to Ethernet technologies. The complaint seeks unspecified damages and an injunction.

On May 4, 2010, MSI filed a motion to intervene in the USEI litigation, which was granted on May 19, 2010. On July 13, 2010, the District Court issued an order granting the defendants’ motion to transfer the action to the U.S. District Court for the Northern District of California; the case was formally transferred on August 23, 2010. On September 14, 2011, USEI withdrew its allegations against MSI for the ‘459 patent. The court issued a first claim construction ruling on January 31, 2012 and a supplemental claim construction ruling on August 29, 2012. On August 16, 2013, the District Court granted defendants’ summary judgment motion to preclude the plaintiff from recovering certain pre-suit damages. On November 7, 2014, on summary judgment, the District Court found that all the patents-in-suit were either invalid or not infringed.

Lake Cherokee Patent Litigation. On June 30, 2010, Lake Cherokee Hard Drive Technologies, L.L.C. (“Lake Cherokee”) filed a complaint in the U.S. District Court for the Eastern District of Texas. The complaint alleged infringement of U.S. Patent Nos. 5,844,738 and 5,978,162 (collectively, the “Lake Cherokee patents”) which purportedly relate to read-channel integrated circuit devices and to certain HDD products incorporating such devices. Lake Cherokee’s damages claim was approximately $193 million at the start of trial. The case proceeded to trial on August 12, 2013. On August 16, 2013, an Eastern District of Texas jury returned a verdict which unanimously found that MSI did not infringe the Lake Cherokee patents and the Court entered judgment in MSI’s favor. Lake Cherokee then moved for a new trial and the briefing was concluded on October 28, 2013.

On September 5, 2013, Lake Cherokee filed a second suit in the U.S. District Court for the Eastern District of Texas against Marvell Asia Pte., Ltd. and several of the Company’s storage customers, alleging infringement of the Lake Cherokee patents.

On September 25, 2013, Lake Cherokee filed a third suit in the U.S. District Court for the Eastern District of Texas against MSI, MAPL and two of the Company’s customers, alleging infringement of U.S. Patent No. 5,583,706, which purportedly relates to certain HDD related technologies.

All the parties involved in the three cases reached settlement in August 2014 and the three cases were dismissed with prejudice. The settlement did not have a significant impact on the Company’s financial statements.

Azure Networks Litigation. On March 22, 2011, Azure Networks, LLC and Tri-County Excelsior Foundation filed suit in the U.S. District Court for the Eastern District of Texas against MSI and eight other companies. The Complaint asserts U.S. Patent No. 7,756,129 against MSI’s Bluetooth products. MSI filed its answer and counterclaims on July 20, 2011. On November 2, 2012, MSI and the other defendants filed a motion for summary judgment of invalidity, which was denied. A claim construction hearing was held on December 20, 2012. On January 15, 2013, the magistrate judge issued a claim construction ruling. On May 20, 2013, the District Court issued an order denying plaintiff’s motion for reconsideration and adopted the magistrate judge’s claim construction ruling. On May 30, 2013, the District Court entered a judgment of non-infringement. On June 24, 2013, Azure appealed, and the appeal has been briefed. Oral argument before a Federal Circuit panel was held on April 11, 2014. On November 6, 2014, the Federal Circuit issued an order vacating the judgment of non-infringement and remanding for further proceedings.

Power Management Systems Litigation. On August 22, 2011, Power Management Systems LLC (“PMS”), a subsidiary of Acacia Research Corp., filed a complaint against the Company’s subsidiary Marvell Semiconductor, Ltd. (“MSL”) and other defendants, in the U.S. District Court for the District of Delaware. The complaint asserts U.S. Patent No. 5,504,909, which relates to a power management apparatus, against various products. The complaint seeks unspecified damages. On October 17, 2011, PMS amended its complaint by substituting MSL with MSI. MSI filed its answer and counterclaims on November 4, 2011. A claim construction hearing was held on January 18, 2013, and a ruling was issued on May 30, 2013. On June 14, 2013, the District Court entered a judgment of non-infringement. On June 17, 2013, PMS appealed, and the appeal has been briefed. The Federal Circuit Court of Appeals heard oral argument on January 10, 2014, and affirmed the district court’s rulings on January 14, 2014. The deadline for PMS to appeal to the United States Supreme Court passed in mid-April 2014 without PMS taking any further action.

France Telecom Litigation. On June 26, 2012, France Telecom S.A. filed a complaint against MSI in the U.S. District Court for the Southern District of New York. The complaint asserts U.S. Patent No.5,446,747 against MSI’s communications processors and thin modems. The complaint seeks unspecified damages as well as injunctive relief. MSI answered the complaint on July 18, 2012 and August 1, 2012. On July 30, 2012, MSI filed a motion to transfer the lawsuit to the U.S. District Court for the Northern District of California. On September 17, 2012, the Court granted MSI’s motion and transferred the case to the Northern District of California. A claim construction hearing was held on December 13, 2013. On April 14, 2014, the Court denied MSI’s motion for summary judgment of invalidity, and granted MSI’s summary judgment motion concerning certain damages preclusion. A jury trial began on September 17, 2014. On September 30, 2014, a jury delivered a verdict that found the patent in suit was literally, but not willfully, infringed and valid, and awarded damages. The award did not have a significant impact on the Company’s financial statements. A hearing for post-trial motions and non-jury issues is scheduled to take place on January 14, 2015.

Freescale Litigation. On July 6, 2012, Freescale Semiconductor, Inc. (“Freescale”) filed a complaint against MSI in the U.S. District Court for the Western District of Texas, and amended the complaint on February 4, 2013. On January 4, 2013, three of the Company’s subsidiaries, MSI, Marvell International Ltd. and Marvell World Trade Ltd., filed a complaint against Freescale in the U.S. District Court for the Western District of Texas, and amended the compliant on January 14, 2013. On April 11, 2014, the Court dismissed both of the above two cases with prejudice pursuant to a settlement and patent license agreement. The settlement did not have a significant impact on the Company’s financial statements.

Progressive Semiconductor Solutions Patent Litigation. On September 30, 2013, Progressive Semiconductor Solutions LLC (“PSS”) filed a complaint in the Central District of California against MSI and another defendant, alleging infringement of U.S. Patent Nos. 6,473,349 (the “349 patent”) and 6,862,208 (the “208 patent”). The patents purportedly relate to certain memory devices. On March 3, 2014, the District Court dismissed MSI without prejudice. On March 4, 2014, PSS filed a new complaint against MSI, alleging infringement of the ‘349 patent but not the ‘208 patent. The parties reached settlement in August 2014 and the case was dismissed with prejudice on August 21, 2014. The settlement did not have a significant impact on the Company’s financial statements.

Vantage Point Technology Patent Litigation. On November 21, 2013, Vantage Point Technology, Inc. (“VPT”) filed suit against a third party defendant for patent infringement relating to processor technology. On February 3, 2014, VPT filed an amended complaint against the third party and added MSI as an additional defendant. The complaint seeks unspecified damages. A claim construction hearing is currently scheduled for January 27, 2015. The first trial in the series of VPT cases against various defendants is currently scheduled for July 13, 2015.

Voss Litigation and Consolidated Cases. On April 7, 2014, Lee Voss (“Voss”) filed an action asserting putative class action claims on behalf of the Company’s shareholders and derivative claims ostensibly on behalf of the Company in the United States District Court for the Northern District of California, San Jose Division. The complaint alleges that certain officers and directors of the Company breached their fiduciary duties by causing or allowing the Company to engage in the purported willful infringement of certain patents asserted against it in litigation by CMU and by failing to institute adequate internal controls, resulting in an adverse verdict. Additionally, the complaint alleges unjust enrichment and a breach of the duty of honest services by three of the officers. The Company is named as a nominal defendant. Voss requests damages and restitution in unspecified amounts, equitable and/or injunctive relief, and the costs and fees of bringing the action. On June 2, 2014, Sebastiano D’Arrigo filed a second, nearly identical complaint in the same court, which was consolidated with the Voss action. On June 13, 2014, James and Marie DiBiase filed a third, nearly identical complaint in the Superior Court for the County of Santa Clara Superior Court, which was removed to the United States District Court for the Northern District of California, San Jose Division and consolidated with the Voss action. The plaintiffs filed an amended consolidated complaint on August 15, 2014. The Company and the defendant officers and directors filed a motion to dismiss the amended consolidated complaint on September 4, 2014, which the plaintiffs opposed on October 30, 2014. The defendants’ filed their reply brief on November 25, 2014. The Court has scheduled a hearing on the defendants’ motion to dismiss for January 22, 2015. The action is in the preliminary stages and the Court has permitted only limited discovery.

Bandspeed Litigation. On May 9, 2014, Bandspeed, Inc. filed suit against MSI, alleging infringement of U.S. Patent Nos. 7,027,418; 7,570,614; 7,477,624; 7,903,608; 8,542,643, purportedly related to certain Bluetooth technology. The complaint seeks unspecified damages. A claim construction hearing is currently scheduled for July 24, 2015.

SOTA Litigation. On October 24, 2014, SOTA Semiconductor LLC filed suit against MSI, alleging infringement of U.S. Patent Nos. 5,991,545 and 6,643,713, purportedly related to certain processor technology. The complaint seeks unspecified damages.

Surety Bond

On May 14, 2014, the Company filed a Notice of Appeal to appeal the final judgment issued by the District Court in the CMU litigation. In order to stay the execution of the final judgment pending its appeal, the Company filed a supersedeas bond for $1.54 billion with the District Court. The bond was issued by a consortium of sureties authorized by the U.S. Treasury. If the judgment is affirmed after the completion of all appellate proceedings, and the Company does not thereafter fully satisfy the judgment within thirty days, the sureties are obligated under the bond to make payment to CMU. In support of the bond, the Company entered into separate indemnity agreements with each of the sureties to indemnify the sureties from all costs and payments made under the bond. The indemnity agreements did not require collateral to be posted at the time of the issuance of the bond. Therefore no cash is considered restricted as of the date of this filing. However, the indemnity agreements provide that each of the sureties have the right to demand to be placed in funds or call for collateral under pre-defined events. The indemnity agreements will remain outstanding for as long as the underlying bond remains outstanding.

The Court has required us to report ongoing royalties under the current judgment. Based on the royalty rate assessed by the District Court, such additional royalties for the period of time commencing on the date ordered by the District Court, January 15, 2013, through November 1, 2014 could be as much as $350 million. On November 14, 2014, we filed a second surety bond for $216 million and filed a commitment letter from the sureties to issue up to an additional $95 million in bonding under certain conditions. The second bond and commitment are secured by our campus located in Santa Clara, California, which has a carrying value of $147 million at November 1, 2014. We and CMU have agreed that the second bond and commitment satisfy the security for ongoing royalties while the appeal is pending.

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 intellectual property indemnities to the Company’s customers in connection with the sales of its products, indemnities for liabilities associated with the infringement of other parties’ technology based upon the Company’s products, 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.

Shareholders' Equity

9 Months Ended

Nov. 01, 2014

Shareholders' Equity

Note 11. Shareholders’ Equity

Stock Plans

Activity under the Company’s stock option plans is included in the following table (in thousands, except per share amounts):


	Time-Based Options					Market-Based Options					Total
	Number of Shares			Weighted Average Exercise Price		Number of Shares			Weighted Average Exercise Price		Number of Shares			Weighted Average Exercise Price
Balance at February 1, 2014		49,156		$	13.40		2,623		$	15.43		51,779		$	13.51
Granted		6,177		$	15.35		—		$	—		6,177		$	15.35
Exercised		(3,052	)	$	10.44		—		$	—		(3,052	)	$	10.44
Canceled/Forfeited		(3,896	)	$	14.73		(388	)	$	15.43		(4,284	)	$	14.79

Balance at November 1, 2014		48,385		$	13.73		2,235		$	15.43		50,620		$	13.81

Vested or expected to vest at November 1, 2014		45,280		$	13.79

Exercisable at November 1, 2014		23,453		$	15.15

For time-based stock options vested and expected to vest at November 1, 2014, the aggregate intrinsic value was $72.9 million and the weighted average remaining contractual term was 6.0 years. For time-based stock options exercisable at November 1, 2014, the aggregate intrinsic value was $36.3 million and the weighted average remaining contractual term was 3.7 years. The aggregate intrinsic value of stock options exercised during the three months ended November 1, 2014 and November 2, 2013 was $1.5 million and $5.6 million, respectively. The aggregate intrinsic value of stock options exercised during the nine months ended November 1, 2014 and November 2, 2013 was $15.1 million and $21.7 million, respectively. There was no aggregate intrinsic value for market-based stock options at November 1, 2014 and the weighted average remaining contractual term of market-based stock options expected to reach the end of the vesting period at November 1, 2014 was 6.5 years. The Company’s closing stock price of $13.44 as reported on the NASDAQ Global Select Market for all in-the-money options as of October 31, 2014 was used to calculate the aggregate intrinsic value.

As of November 1, 2014, the unamortized compensation expense for time-based stock options was $60.3 million and market-based stock options were fully amortized in fiscal 2014. The unamortized compensation expense for time-based stock options will be amortized on a straight-line basis and is expected to be recognized over a weighted average period of 2.5 years.

Activity related to the non-vested portion of the restricted stock units is included in the following table (in thousands, except for share prices):


	Time-Based					Performance-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
Balance at February 1, 2014		11,254		$	14.11		100		$	10.52			11,354		$	14.08
Granted		5,435		$	15.23		1,277	*	$	14.98	*		6,712		$	15.18
Vested		(5,652	)	$	13.95		(3	)	$	10.52			(5,655	)	$	13.95
Canceled/Forfeited		(908	)	$	14.25		(110	)	$	10.96			(1,018	)	$	13.89

Balance at November 1, 2014		10,129		$	14.82		1,264		$	14.99			11,393		$	14.84

*	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 financial and strategic goals is achieved.

The Company grants performance-based restricted stock units (“PSUs”) to certain members of senior management. Pursuant to the PSUs, each eligible employee is entitled to vest in a certain number of shares based on such employee’s achievement of individual financial and strategic performance goals for fiscal 2015, including, for example, net revenue and operating expense targets, and other individual strategic milestones. The actual number of shares that will vest for each eligible employee based on the achievement of such performance goals will be determined at the end of fiscal 2015 and will vest over two years, with 50% vesting on April 1, 2015 and 50% on April 1, 2016. The Company recognizes expenses associated with the PSUs when it becomes probable that the performance conditions will be met. Once it becomes probable that a PSU will vest, the Company recognizes compensation expense equal to the number of shares multiplied by the fair value of the related shares measured at the grant date.

The aggregate intrinsic value of restricted stock units expected to vest as of November 1, 2014 was $140.6 million. The number of restricted stock units that are expected to vest is 10.5 million shares.

As of November 1, 2014, unamortized compensation expense related to restricted stock units was $99.1 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 1.6 years.

Executive Performance Awards

In April 2014, the Company granted performance-based equity awards to each of our executive officers which are based on their achievement of certain performance goals in fiscal 2015 and 2016. These equity awards include restricted stock units which vest based on financial performance criteria (“Financial Performance RSU”) and restricted stock units which vest based on both financial performance criteria and individual strategic goals (“Strategic Performance Award”). The Financial Performance RSUs will be earned based on the achievement of revenue and modified non-GAAP operating income that have been established at “threshold,” “target” and “maximum” levels. Each Financial Performance RSU will vest 50% on the first anniversary of the commencement date based on achievement of fiscal 2015 financial performance criteria and 50% on the second anniversary of the vesting commencement date based on the achievement of fiscal 2016 financial performance criteria. The Strategic Performance Awards will vest based on achievement at the threshold level of either the revenue or modified non-GAAP operating income objective established for the Financial Performance RSU, in addition to the achievement of additional individual strategic goals. Each Strategic Performance Award will vest 50% on the first anniversary of the commencement date based on achievement of fiscal 2015 individual strategic goals and 50% on second anniversary date based on the achievement of the fiscal 2016 individual strategic goals.

Employee Stock Purchase Plan

During the three months ended November 1, 2014 and November 2, 2013, the Company issued no shares under the 2000 Employee Stock Purchase Plan, as amended and restated (the “ESPP”). A total of 5.2 million shares were issued at a weighted average price of $7.58 per share in the nine months ended November 1, 2014 and a total of 5.0 million shares were issued at a weighted average price of $7.34 per share in the nine months ended November 2, 2013 under the ESPP. As of November 1, 2014, there was $6.1 million of unrecognized compensation cost related to the ESPP.

Share Repurchase Program

The Company repurchased 3.7 million of its common shares for $45.0 million during the three and nine months ended November 1, 2014. During the three and nine months ended November 2, 2013, the Company repurchased 6.1 million of its common shares for $71.3 million in cash and 33.2 million of its common shares for $354.1 million, 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 trade date. As of November 1, 2014, a total of 220.5 million cumulative shares have been repurchased under the Company’s share repurchase program for a total $2.8 billion in cash and there was $213.4 million remaining available for future share repurchases.

Dividends

The Company paid the following cash dividends:


	Three Months Ended				Nine Months Ended
	November 1,		November 2,		November 1,		November 2,
	2014		2013		2014		2013
Cash dividend per share	$	0.06	$	0.06	$	0.18	$	0.18

Total payment to shareholders (in thousands)	$	30,867	$	29,516	$	91,859	$	89,560

On November 20, 2014, the Company announced that its board of directors declared a cash dividend of $0.06 per share to be paid on December 29, 2014 to shareholders of record as of December 11, 2014.

Future payment of a regular quarterly cash dividend on the Company’s common shares will be subject to, among other things, the best interests of the Company, the Company’s results of operations, cash balances and future cash requirements, financial condition, statutory requirements under Bermuda law and other factors that the Company’s board of directors may deem relevant. The Company’s dividend payments may change from time to time, and the Company cannot provide assurance that it will continue to declare dividends at all or in any particular amounts. In addition, developments in ongoing litigation could affect the Company’s ability to make a dividend payment on a declared payment date until such time as the Company can meet statutory requirements under Bermuda law.

- Definition

The entire disclosure for shareholders' equity comprised of portions attributable to the parent entity and noncontrolling interest, including other comprehensive income. Includes, but is not limited to, balances of common stock, preferred stock, additional paid-in capital, other capital and retained earnings, accumulated balance for each classification of other comprehensive income and amount of comprehensive income.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(d),(e))
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Reference 2: http://www.xbrl.org/2003/role/presentationRef
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-Paragraph 4
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Reference 3: http://www.xbrl.org/2003/role/presentationRef
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Reference 4: http://www.xbrl.org/2003/role/presentationRef
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Reference 5: http://www.xbrl.org/2003/role/presentationRef
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-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.29-31)
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Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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Reference 7: http://www.xbrl.org/2003/role/presentationRef
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Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-Subparagraph (SX 210.3-04)
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Reference 9: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
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-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21475-112644

Reference 11: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Preferred Stock
-URI http://asc.fasb.org/extlink&oid=6521494

Reference 12: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 14: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
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-Article 4

Reference 15: http://www.xbrl.org/2003/role/presentationRef
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Reference 16: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Staff Accounting Bulletin (SAB)
-Number Topic 4
-Section E

Reference 17: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 08
-Article 4

Reference 18: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Staff Accounting Bulletin (SAB)
-Number Topic 4
-Section C

Reference 19: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 04
-Article 3

+ Details

Share-Based Compensation

9 Months Ended

Nov. 01, 2014

Share-Based Compensation

Note 12. Share-Based Compensation

The following table presents details of share-based compensation expenses by functional line item (in thousands):


	Three Months Ended				Nine Months Ended
	November 1,		November 2,		November 1,		November 2,
	2014		2013		2014		2013
Cost of goods sold	$	1,934	$	2,531	$	5,966	$	6,266
Research and development		24,198		30,084		68,842		82,345
Selling and marketing		2,855		3,738		8,400		10,778
General and administrative		5,307		6,848		16,075		18,416

	$	34,294	$	43,201	$	99,283	$	117,805

Share-based compensation capitalized in inventory was $1.5 million at November 1, 2014 and $1.7 million at February 1, 2014.

Valuation Assumptions

The following weighted average assumptions were used for each respective period to calculate the fair value of each time-based stock option award on the date of grant using the Black-Scholes valuation model:


	Three Months Ended						Nine Months Ended
	November 1,			November 2,			November 1,			November 2,
	2014			2013			2014			2013
Time-based Stock Options:
Weighted average fair value	$	3.43		$	3.91		$	4.35		$	3.42
Expected volatility		34	%		42	%		35	%		45	%
Expected term (in years)		5.0			5.0			5.0			5.0
Risk-free interest rate		1.7	%		1.5	%		1.6	%		0.8	%
Expected dividend yield		1.8	%		2.0	%		1.6	%		2.4	%


	Nine Months Ended
	November 1,			November 2,
	2014			2013
Employee Stock Purchase Plan:
Estimated fair value	$	4.13		$	3.45
Volatility		32	%		40	%
Expected term (in years)		1.3			1.3
Risk-free interest rate		0.2	%		0.2	%
Dividend yield		1.6	%		2.2	%

The Company and Basis of Presentation (Policies)	9 Months Ended
The Company and Basis of Presentation (Policies)	Nov. 01, 2014
Basis of Presentation	*Basis of Presentation* The Company’s fiscal year is the 52- or 53-week period ending on the Saturday closest to January 31. In a 52-week year, each fiscal quarter consists of 13 weeks. The additional week in a 53-week year is added to the fourth quarter, making such quarter consist of 14 weeks. Fiscal 2015 and 2014 each have a 52-week period. The unaudited condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States (“GAAP”) for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and notes required by GAAP for annual financial statements. In the opinion of management, all adjustments consisting of normal and recurring entries considered necessary for a fair statement of the results for the interim periods have been included in the Company’s balance sheet as of November 1, 2014, the results of its operations for the three and nine months ended November 1, 2014 and November 2, 2013, its comprehensive income for the three and nine months ended November 1, 2014 and November 2, 2013, and its cash flows for the nine months ended November 1, 2014 and November 2, 2013. The February 1, 2014 condensed consolidated balance sheet data was derived from the audited consolidated financial statements included in the Company’s Annual Report on Form 10-K for the fiscal year ended February 1, 2014, but does not include all disclosures required for annual periods. These condensed consolidated financial statements and related notes are unaudited and should be read in conjunction with the Company’s audited financial statements and related notes included in the Company’s Annual Report on Form 10-K for the fiscal year ended February 1, 2014 as filed on March 27, 2014 with the Securities and Exchange Commission. The results of operations for the three and nine months ended November 1, 2014 are not necessarily indicative of the results that may be expected for any other interim period or for the full fiscal year.
Use of Estimates	*Use of Estimates* The preparation of consolidated financial statements in conformity with 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 assets and 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. In addition, the Company uses assumptions when employing the Black-Scholes valuation model to calculate the fair value of share-based awards that are granted. Actual results could differ from these estimates, and such differences could affect the results of operations reported in future periods.
Principles of Consolidation	*Principles of Consolidation* The unaudited condensed consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries. All intercompany accounts and transactions have been eliminated. The functional currency of the Company and its subsidiaries is the U.S. dollar.
Accounting Pronouncements Not Yet Effective	*Accounting Pronouncements Not Yet Effective* In April 2014, the Financial Accounting Standards Board (“FASB”) issued an amendment to its guidance regarding the reporting requirements of discontinued operations. Under this amended guidance, a discontinued operation is defined as a disposal of a component or group of components that is disposed of or is classified as held for sale and represents a strategic shift that has (or will have) a major effect on an entity’s operations and financial results. In addition, this amendment requires an entity to present, for each comparative period, the assets and liabilities of a disposal group that includes a discontinued operation separately in the asset and liability sections, respectively, of the statement of financial position and additional disclosures about discontinued operations. This amended guidance is effective for annual and interim reporting periods beginning after December 15, 2014. The Company expects this guidance to have an impact on its financial statements only in the event of a future disposition which meets the criteria. In May 2014, the FASB issued a new standard on the recognition of revenue from contracts with customers, which will supersede nearly all existing revenue recognition guidance under GAAP. The core principal of the standard is that an entity should recognize revenue when a customer has control of promised goods or services in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. It also requires additional disclosure about the nature, amount, timing and uncertainty of revenue and cash flows arising from customer contracts, and assets recognized from costs incurred to obtain or fulfill a contract, including significant judgments and changes in judgments. This standard is effective for annual and interim reporting periods beginning after December 15, 2016 and will be effective for the Company’s first quarter of fiscal 2018. Early adoption is not permitted. The standard allows for either full retrospective or modified retrospective adoption. We are evaluating the transition method that will be elected and the potential effects of its adoption on our financial statements.

Investments (Tables)

9 Months Ended

Nov. 01, 2014

Schedule of Available-for-sale Securities Reconciliation

The following tables summarize the Company’s investments (in thousands):


	November 1, 2014
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Value
Short-term investments:
Available-for-sale:
Corporate debt securities	$	842,487	$	2,121	$	(756	)	$	843,852
U.S. government and agency debt		234,649		136		(32	)		234,753
Asset backed securities		85,893		40		(67	)		85,866
Foreign government and agency debt		28,079		25		(20	)		28,084
Municipal debt securities		23,195		41		(6	)		23,230
Auction rate securities		3,000		—		—			3,000

Total short-term investments		1,217,303		2,363		(881	)		1,218,785
Long-term investments:
Available-for-sale:
Auction rate securities		12,500		—		(2,423	)		10,077

Total long-term investments		12,500		—		(2,423	)		10,077

Total investments	$	1,229,803	$	2,363	$	(3,304	)	$	1,228,862


	February 1, 2014
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Value
Short-term investments:
Available-for-sale:
Corporate debt securities	$	587,095	$	2,789	$	(370	)	$	589,514
U.S. government and agency debt		301,423		128		(72	)		301,479
Asset backed securities		76,220		89		(38	)		76,271
Foreign government and agency debt		20,324		12		(44	)		20,292
Municipal debt securities		16,059		44		(4	)		16,099

Total short-term investments		1,001,121		3,062		(528	)		1,003,655
Long-term investments:
Available-for-sale:
Auction rate securities		19,150		—		(2,871	)		16,279

Total long-term investments		19,150		—		(2,871	)		16,279

Total investments	$	1,020,271	$	3,062	$	(3,399	)	$	1,019,934

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

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


	Three Months Ended						Nine Months Ended
	November 1, 2014			November 2, 2013			November 1, 2014			November 2, 2013
Gross realized gains	$	415		$	497		$	1,367		$	1,289
Gross realized losses		(25	)		(216	)		(50	)		(253	)

Total net realized gains	$	390		$	281		$	1,317		$	1,036

Investments Classified by Contractual Maturity Date

The contractual maturities of available-for-sale securities are presented in the following table (in thousands):


	November 1, 2014				February 1, 2014
	Amortized Cost		Estimated Fair Value		Amortized Cost		Estimated Fair Value
Due in one year or less	$	356,973	$	357,266	$	309,543	$	309,861
Due between one and five years		848,587		849,763		686,062		688,280
Due over five years		24,243		21,833		24,666		21,793

	$	1,229,803	$	1,228,862	$	1,020,271	$	1,019,934

Unrealized Loss Position Investments


	November 1, 2014
	Less than 12 months					12 months or more					Total
	Fair Value		Unrealized Loss			Fair Value		Unrealized Loss			Fair Value		Unrealized Loss
Corporate debt securities	$	318,039	$	(746	)	$	992	$	(10	)	$	319,031	$	(756	)
U.S. government and agency debt		59,046		(32	)		—		—			59,046		(32	)
Asset backed securities		36,510		(67	)		—		—			36,510		(67	)
Foreign government and agency debt		16,572		(20	)		—		—			16,572		(20	)
Municipal debt securities		3,202		(6	)		—		—			3,202		(6	)
Auction rate securities		—		—			10,077		(2,423	)		10,077		(2,423	)

Total securities	$	433,369	$	(871	)	$	11,069	$	(2,433	)	$	444,438	$	(3,304	)


	February 1, 2014
	Less than 12 months					12 months or more					Total
	Fair Value		Unrealized Loss			Fair Value		Unrealized Loss			Fair Value		Unrealized Loss
Corporate debt securities	$	110,903	$	(366	)	$	2,105	$	(4	)	$	113,008	$	(370	)
U.S. government and agency debt		93,118		(72	)		—		—			93,118		(72	)
Asset backed securities		18,865		(19	)		1,912		(19	)		20,777		(38	)
Foreign government and agency debt		14,299		(44	)		—		—			14,299		(44	)
Municipal debt securities		723		(4	)		—		—			723		(4	)
Auction rate securities		—		—			16,279		(2,871	)		16,279		(2,871	)

Total securities	$	237,908	$	(505	)	$	20,296	$	(2,894	)	$	258,204	$	(3,399	)

Supplemental Financial Information (Tables)

9 Months Ended

Nov. 01, 2014

Schedule of Inventory, Current


	November 1, 2014		February 1, 2014
Inventories:
Work-in-process	$	197,671	$	195,495
Finished goods		158,746		152,366

Total inventories	$	356,417	$	347,861

Property, Plant and Equipment


	November 1, 2014			February 1, 2014
Property and equipment, net:
Machinery and equipment	$	594,702		$	562,038
Buildings		144,320			144,320
Computer software		97,452			96,096
Land		53,373			53,373
Building improvements		49,786			49,645
Leasehold improvements		50,187			49,060
Furniture and fixtures		27,746			27,621
Construction in progress		5,396			2,911

		1,022,962			985,064
Less: Accumulated depreciation and amortization		(679,861	)		(628,899	)

Total property and equipment, net	$	343,101		$	356,165

Schedule of Other Assets, Noncurrent


	November 1, 2014		February 1, 2014
Other non-current assets:
Technology and other licenses	$	68,819	$	83,521
Deferred tax assets		23,442		19,282
Investments in privately-held companies		9,267		14,565
Prepaid land use rights		13,510		13,744
Deposits		11,918		12,433
Other		18,083		16,821

Total other non-current assets	$	145,039	$	160,366

Schedule of Accrued Liabilities


	November 1, 2014		February 1, 2014
Accrued liabilities:
Accrued rebates	$	51,407	$	61,616
Accrued royalties		25,426		36,568
Technology license obligations		17,079		18,482
Accrued legal expense		9,857		14,589
Other		36,315		30,507

Total accrued liabilities	$	140,084	$	161,762

Other Noncurrent Liabilities


	November 1, 2014		February 1, 2014
Other non-current liabilities:
Technology license obligations	$	19,085	$	28,959
Long-term accrued employee compensation		4,622		4,370
Other		12,615		9,140

Other non-current liabilities	$	36,322	$	42,469

Changes in Accumulated Other Comprehensive Income (loss) by Component

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


	Unrealized Gain (Loss) on Marketable Securities			Unrealized Gain (Loss) on Auction Rate Securities			Unrealized Gain (Loss) on Cash Flow Hedges			Total
Balance at February 1, 2014	$	2,534		$	(2,871	)	$	934		$	597
Other comprehensive income before reclassifications		67			448			(1,603	)		(1,088	)
Amounts reclassified from accumulated other comprehensive income		(1,119	)		—			(1,354	)		(2,473	)

Other comprehensive income (loss)		(1,052	)		448			(2,957	)		(3,561	)

Balance at November 1, 2014	$	1,482		$	(2,423	)	$	(2,023	)	$	(2,964	)


	Unrealized Gain (Loss) on Marketable Securities			Unrealized Gain (Loss) on Auction Rate Securities			Unrealized Gain (Loss) on Cash Flow Hedges			Total
Balance at February 2, 2013	$	2,742		$	(2,681	)	$	1,087		$	1,148
Other comprehensive income before reclassifications		(276	)		(311	)		3,103			2,516
Amounts reclassified from accumulated other comprehensive income		(923	)		—			(2,684	)		(3,607	)

Other comprehensive income (loss)		(1,199	)		(311	)		419			(1,091	)

Balance at November 2, 2013	$	1,543		$	(2,992	)	$	1,506		$	57

Amounts Reclassified from Accumulated Other Comprehensive Income by Components

The amounts reclassified from accumulated other comprehensive income by components are presented in the following table (in thousands):


	Three Months Ended				Nine Months Ended
Affected Line Item in the Statement of Operations	November 1, 2014		November 2, 2013		November 1, 2014		November 2, 2013
Available-for-sale securities:
Interest and other income, net	$	264	$	380	$	1,119	$	923
Cash flow hedges:
Cost of goods sold		22		41		85		149
Research and development		298		648		1,156		2,319
Selling and marketing		29		53		110		198
General and administrative		1		5		3		18

Total	$	614	$	1,127	$	2,473	$	3,607

Schedule of Calculation of Numerator and Denominator in Earnings Per Share

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


	Three Months Ended				Nine Months Ended
	November 1, 2014		November 2, 2013		November 1, 2014		November 2, 2013
Numerator:
Net income	$	115,304	$	103,156	$	353,653	$	218,191

Denominator:
Weighted average shares — basic		513,859		491,979		510,261		496,151
Effect of dilutive securities:
Share-based awards		6,048		9,210		10,048		6,250

Weighted average shares — diluted		519,907		501,189		520,309		502,401

Net income per share:
Basic	$	0.22	$	0.21	$	0.69	$	0.44
Diluted	$	0.22	$	0.21	$	0.68	$	0.43

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


	Three Months Ended				Nine Months Ended
	November 1, 2014		November 2, 2013		November 1, 2014		November 2, 2013
Weighted average shares outstanding from stock options:
Time-based options		25,092		43,167		22,331		39,854
Market-based options		2,245		2,719		2,306		2,732

		27,337		45,886		24,637		42,586

Weighted average exercise price:
Time-based options	$	17.19	$	14.71	$	17.61	$	15.18

Market-based options	$	15.43	$	15.42	$	15.43	$	15.43

Total	$	17.04	$	14.75	$	17.41	$	15.20

Derivative Financial Instruments (Tables)

9 Months Ended

Nov. 01, 2014

Schedule of Derivative Instruments

The notional amounts of outstanding forward contracts were as follows (in thousands):


	November 1, 2014				February 1, 2014
	Buy Contracts		Sell Contracts		Buy Contracts
Israeli shekel	$	51,047	$	—	$	39,670
Chinese yuan		15,614		—		—
Euro		5,371		5,376		5,718
Swedish krona		—		—		3,709

	$	72,032	$	5,376	$	49,097

- Definition

Tabular disclosure of pertinent information about a derivative or group of derivatives on a disaggregated basis, such as for individual instruments, or small groups of similar instruments. May include a combination of the type of instrument, risks being hedged, notional amount, hedge designation, related hedged item, inception date, maturity date, or other relevant item.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=35706170&loc=d3e41641-113959

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4B
-URI http://asc.fasb.org/extlink&oid=35706170&loc=SL5624163-113959

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=35706170&loc=d3e41678-113959

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=35706170&loc=d3e41638-113959

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1B
-URI http://asc.fasb.org/extlink&oid=35706170&loc=SL5580258-113959

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1A
-URI http://asc.fasb.org/extlink&oid=35706170&loc=SL5579245-113959

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4C
-URI http://asc.fasb.org/extlink&oid=35706170&loc=SL5624171-113959

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 25
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6886632&loc=d3e76258-113986

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=35706170&loc=SL5579240-113959

Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=35706170&loc=d3e41620-113959

Reference 11: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(n)(2))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

+ Details

Fair Value Measurements (Tables)

9 Months Ended

Nov. 01, 2014

Fair Value, Assets Measured on Recurring Basis


	Level 1		Level 2		Level 3		Portion of Carrying Value Measured at Fair Value at November 1, 2014
Items measured at fair value on a recurring basis:
Assets
Cash equivalents:
U.S. government and agency debt	$	12,200	$	—	$	—	$	12,200
Money market funds		16,290		—		—		16,290
Time deposits		—		206,580		—		206,580
Municipal debt securities		—		1,908		—		1,908
Corporate debt securities		—		28,332		—		28,332
Short-term investments:
U.S. government and agency debt		234,753		—		—		234,753
Corporate debt securities		—		843,852		—		843,852
Asset backed securities		—		85,866		—		85,866
Foreign government and agency debt		—		28,084		—		28,084
Municipal debt securities		—		23,230		—		23,230
Auction rate securities				3,000				3,000
Prepaid expenses and other current assets:
Foreign currency forward contracts		—		384		—		384
Long-term investments:
Auction rate securities		—		—		10,077		10,077
Other non-current assets:
Severance pay fund		—		1,841		—		1,841

Total assets	$	263,243	$	1,223,077	$	10,077	$	1,496,397

Liabilities
Accrued liabilities:
Foreign currency forward contracts	$	—	$	2,402	$	—	$	2,402


	Level 1		Level 2		Level 3		Portion of Carrying Value Measured at Fair Value at February 1, 2014
Items measured at fair value on a recurring basis:
Assets
Cash equivalents:
U.S. government and agency debt	$	11,999	$	—	$	—	$	11,999
Money market funds		2,804		—		—		2,804
Time deposits		—		247,958		—		247,958
Municipal debt securities		—		4,800		—		4,800
Corporate debt securities		—		3,400		—		3,400
Short-term investments:
U.S. government and agency debt		301,479		—		—		301,479
Corporate debt securities		—		589,514		—		589,514
Asset backed securities		—		76,271		—		76,271
Foreign government and agency debt		—		20,292		—		20,292
Municipal debt securities		—		16,099		—		16,099
Prepaid expenses and other current assets:
Foreign currency forward contracts		—		1,012		—		1,012
Long-term investments:
Auction rate securities		—		—		16,279		16,279
Other non-current assets:
Severance pay fund		—		2,193		—		2,193

Total assets	$	316,282	$	961,539	$	16,279	$	1,294,100

Liabilities
Accrued liabilities:
Foreign currency forward contracts	$	—	$	26	$	—	$	26

Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation

The following table summarizes the change in fair value for Level 3 assets (in thousands):


	Nine Months Ended
	November 1, 2014			November 2, 2013
Beginning balance	$	16,279		$	16,769
Sales and redemptions		(3,650	)		(300	)
Transfer out		(3,000	)		—
Unrealized losses included in accumulated other comprehensive income		448			(311	)

Ending balance	$	10,077		$	16,158

Acquired Intangible Assets, Net (Tables)

9 Months Ended

Nov. 01, 2014

Schedule of Finite-Lived Intangible Assets by Major Class

The carrying amount of acquired intangible assets, net, are as follows (in thousands):


		November 1, 2014							February 1, 2014
	Range of Useful Lives	Gross Carrying Amounts		Accumulated Amortization and Write-Offs			Net Carrying Amount		Gross Carrying Amounts		Accumulated Amortization and Write-Offs			Net Carrying Amount
Purchased technology	4 - 6 years	$	49,240	$	(27,369	)	$	21,871	$	49,240	$	(20,634	)	$	28,606
Core technology	5 - 8 years		2,350		(1,850	)		500		2,350		(1,583	)		767
Trade names	5 years		1,300		(763	)		537		1,300		(568	)		732
Customer intangibles	5 - 6 years		28,600		(17,225	)		11,375		28,600		(13,056	)		15,544
IPR&D			—		—			—		3,386		—			3,386

Total intangible assets, net		$	81,490	$	(47,207	)	$	34,283	$	84,876	$	(35,841	)	$	49,035

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense

Based on the identified intangible assets recorded at November 1, 2014, the future amortization expense for the next five fiscal years is as follows (in thousands):


Fiscal Year
Remainder of fiscal 2015	$	3,585
2016		12,212
2017		11,027
2018		5,599
2019		1,860
Thereafter		—

	$	34,283

Restructuring (Tables)

9 Months Ended

Nov. 01, 2014

Schedule of Restructuring Reserve by Type of Cost

The following table presents detail of the related restructuring charges recorded by the Company (in thousands):


	November 1, 2014
	Three Months Ended		Nine Months Ended
Severance and related costs	$	72	$	5,107
Facilities and related costs		1,117		1,815
Other exit-related costs		13		86

		1,202		7,008
Write-off of assets:
Equipment		—		17
Acquired intangible asset		—		3,386

	$	1,202	$	10,411

The following table presents details of restructuring charges by functional line item (in thousands):


	Three Months Ended				Nine Months Ended
	November 1, 2014		November 2, 2013		November 1, 2014		November 2, 2013
Research and development	$	87	$	2,886	$	5,181	$	2,886
Selling and marketing		—		795		—		795
General and administrative		1,115		527		1,844		933
Write-off of acquired intangible assets		—		—		3,386		—

	$	1,202	$	4,208	$	10,411	$	4,614

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):


	Severance and Related Costs			Facilities and Related Costs			Other Exit-Related Costs			Total
Balance at February 1, 2014	$	51		$	2,383		$	19		$	2,453
Restructuring charges		5,107			1,815			86			7,008
Net cash payments		(5,124	)		(1,828	)		(105	)		(7,057	)

Balance at November 1, 2014	$	34		$	2,370		$	—		$	2,404

Shareholders' Equity (Tables)

9 Months Ended

Nov. 01, 2014

Disclosure of Share-based Compensation Arrangements by Share-based Payment Award

Activity under the Company’s stock option plans is included in the following table (in thousands, except per share amounts):


	Time-Based Options					Market-Based Options					Total
	Number of Shares			Weighted Average Exercise Price		Number of Shares			Weighted Average Exercise Price		Number of Shares			Weighted Average Exercise Price
Balance at February 1, 2014		49,156		$	13.40		2,623		$	15.43		51,779		$	13.51
Granted		6,177		$	15.35		—		$	—		6,177		$	15.35
Exercised		(3,052	)	$	10.44		—		$	—		(3,052	)	$	10.44
Canceled/Forfeited		(3,896	)	$	14.73		(388	)	$	15.43		(4,284	)	$	14.79

Balance at November 1, 2014		48,385		$	13.73		2,235		$	15.43		50,620		$	13.81

Vested or expected to vest at November 1, 2014		45,280		$	13.79

Exercisable at November 1, 2014		23,453		$	15.15

Schedule of Nonvested Share Activity

Activity related to the non-vested portion of the restricted stock units is included in the following table (in thousands, except for share prices):


	Time-Based					Performance-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
Balance at February 1, 2014		11,254		$	14.11		100		$	10.52			11,354		$	14.08
Granted		5,435		$	15.23		1,277	*	$	14.98	*		6,712		$	15.18
Vested		(5,652	)	$	13.95		(3	)	$	10.52			(5,655	)	$	13.95
Canceled/Forfeited		(908	)	$	14.25		(110	)	$	10.96			(1,018	)	$	13.89

Balance at November 1, 2014		10,129		$	14.82		1,264		$	14.99			11,393		$	14.84

*	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 financial and strategic goals is achieved.

Schedule of Cash Dividends

The Company paid the following cash dividends:


	Three Months Ended				Nine Months Ended
	November 1,		November 2,		November 1,		November 2,
	2014		2013		2014		2013
Cash dividend per share	$	0.06	$	0.06	$	0.18	$	0.18

Total payment to shareholders (in thousands)	$	30,867	$	29,516	$	91,859	$	89,560

Share-Based Compensation (Tables)

9 Months Ended

Nov. 01, 2014

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

The following table presents details of share-based compensation expenses by functional line item (in thousands):


	Three Months Ended				Nine Months Ended
	November 1,		November 2,		November 1,		November 2,
	2014		2013		2014		2013
Cost of goods sold	$	1,934	$	2,531	$	5,966	$	6,266
Research and development		24,198		30,084		68,842		82,345
Selling and marketing		2,855		3,738		8,400		10,778
General and administrative		5,307		6,848		16,075		18,416

	$	34,294	$	43,201	$	99,283	$	117,805

Employee Stock Purchase Plan

Weighted Average Assumptions Used to Calculate Fair Value Awards


	Nine Months Ended
	November 1,			November 2,
	2014			2013
Employee Stock Purchase Plan:
Estimated fair value	$	4.13		$	3.45
Volatility		32	%		40	%
Expected term (in years)		1.3			1.3
Risk-free interest rate		0.2	%		0.2	%
Dividend yield		1.6	%		2.2	%

Time Based Option Award

Weighted Average Assumptions Used to Calculate Fair Value Awards


	Three Months Ended						Nine Months Ended
	November 1,			November 2,			November 1,			November 2,
	2014			2013			2014			2013
Time-based Stock Options:
Weighted average fair value	$	3.43		$	3.91		$	4.35		$	3.42
Expected volatility		34	%		42	%		35	%		45	%
Expected term (in years)		5.0			5.0			5.0			5.0
Risk-free interest rate		1.7	%		1.5	%		1.6	%		0.8	%
Expected dividend yield		1.8	%		2.0	%		1.6	%		2.4	%

Summary of Investments (Detail) - USD ($) $ in Thousands	Nov. 01, 2014	Feb. 01, 2014
Gain (Loss) on Investments [Line Items]
Amortized Cost	$ 1,229,803	$ 1,020,271
Gross Unrealized Gains	2,363	3,062
Gross Unrealized Losses	(3,304)	(3,399)
Estimated Fair Value	1,228,862	1,019,934
Short-term Investments
Gain (Loss) on Investments [Line Items]
Amortized Cost	1,217,303	1,001,121
Gross Unrealized Gains	2,363	3,062
Gross Unrealized Losses	(881)	(528)
Estimated Fair Value	1,218,785	1,003,655
Short-term Investments \| Corporate debt securities
Gain (Loss) on Investments [Line Items]
Amortized Cost	842,487	587,095
Gross Unrealized Gains	2,121	2,789
Gross Unrealized Losses	(756)	(370)
Estimated Fair Value	843,852	589,514
Short-term Investments \| U.S. government and agency debt
Gain (Loss) on Investments [Line Items]
Amortized Cost	234,649	301,423
Gross Unrealized Gains	136	128
Gross Unrealized Losses	(32)	(72)
Estimated Fair Value	234,753	301,479
Short-term Investments \| Asset-backed Securities
Gain (Loss) on Investments [Line Items]
Amortized Cost	85,893	76,220
Gross Unrealized Gains	40	89
Gross Unrealized Losses	(67)	(38)
Estimated Fair Value	85,866	76,271
Short-term Investments \| Foreign government and agency debt
Gain (Loss) on Investments [Line Items]
Amortized Cost	28,079	20,324
Gross Unrealized Gains	25	12
Gross Unrealized Losses	(20)	(44)
Estimated Fair Value	28,084	20,292
Short-term Investments \| Municipal debt securities
Gain (Loss) on Investments [Line Items]
Amortized Cost	23,195	16,059
Gross Unrealized Gains	41	44
Gross Unrealized Losses	(6)	(4)
Estimated Fair Value	23,230	16,099
Short-term Investments \| Auction rate securities
Gain (Loss) on Investments [Line Items]
Amortized Cost	3,000
Estimated Fair Value	3,000
Long-term investments
Gain (Loss) on Investments [Line Items]
Amortized Cost	12,500	19,150
Gross Unrealized Losses	(2,423)	(2,871)
Estimated Fair Value	10,077	16,279
Long-term investments \| Auction rate securities
Gain (Loss) on Investments [Line Items]
Amortized Cost	12,500	19,150
Gross Unrealized Losses	(2,423)	(2,871)
Estimated Fair Value	$ 10,077	$ 16,279

Investments - Additional Information (Detail) - USD ($) $ in Thousands	Nov. 01, 2014	Feb. 01, 2014
Gain (Loss) on Investments [Line Items]
Amortized Cost	$ 1,229,803	$ 1,020,271
Gross Unrealized Losses	3,304	3,399
Cash, cash equivalents and short-term investments	2,400,000
Long-term investments
Gain (Loss) on Investments [Line Items]
Amortized Cost	12,500	19,150
Gross Unrealized Losses	2,423	2,871
Long-term investments \| Auction rate securities
Gain (Loss) on Investments [Line Items]
Amortized Cost	12,500	19,150
Gross Unrealized Losses	$ 2,423	$ 2,871

- Definition

Cash includes currency on hand as well as demand deposits with banks or financial institutions. It also includes other kinds of accounts that have the general characteristics of demand deposits in that the customer may deposit additional funds at any time and effectively may withdraw funds at any time without prior notice or penalty. Cash equivalents, excluding items classified as marketable securities, include short-term, highly liquid Investments that are both readily convertible to known amounts of cash, and so near their maturity that they present minimal risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify under that definition. Original maturity means original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three years ago does not become a cash equivalent when its remaining maturity is three months. Short-term investments, exclusive of cash equivalents, generally consist of marketable securities intended to be sold within one year (or the normal operating cycle if longer) and may include trading securities, available-for-sale securities, or held-to-maturity securities (if maturing within one year), as applicable.

+ References + Details

Gross Realized Gains and Losses on Sale of Available-for-Sales Securities (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Nov. 01, 2014	Nov. 02, 2013	Nov. 01, 2014	Nov. 02, 2013
Schedule of Available-for-sale Securities [Line Items]
Gross realized gains	$ 415	$ 497	$ 1,367	$ 1,289
Gross realized losses	(25)	(216)	(50)	(253)
Total net realized gains	$ 390	$ 281	$ 1,317	$ 1,036

Contractual Maturities of Available for Sale Securities (Detail) - USD ($) $ in Thousands	Nov. 01, 2014	Feb. 01, 2014
Amortized Cost
Due in one year or less	$ 356,973	$ 309,543
Due between one and five years	848,587	686,062
Due over five years	24,243	24,666
Amortized Cost	1,229,803	1,020,271
Estimated Fair Value
Due in one year or less	357,266	309,861
Due between one and five years	849,763	688,280
Due over five years	21,833	21,793
Estimated Fair Value	$ 1,228,862	$ 1,019,934

Summary of Investments Gross Unrealized Losses and Fair Value (Detail) - USD ($) $ in Thousands	Nov. 01, 2014	Feb. 01, 2014
Investments, Unrealized Loss Position [Line Items]
Less than 12 months Fair Value	$ 433,369	$ 237,908
Less than 12 months Unrealized Losses	(871)	(505)
12 months or more Fair Value	11,069	20,296
12 months or more Unrealized Losses	(2,433)	(2,894)
Total Fair Value	444,438	258,204
Total Unrealized Losses	(3,304)	(3,399)
Corporate debt securities
Investments, Unrealized Loss Position [Line Items]
Less than 12 months Fair Value	318,039	110,903
Less than 12 months Unrealized Losses	(746)	(366)
12 months or more Fair Value	992	2,105
12 months or more Unrealized Losses	(10)	(4)
Total Fair Value	319,031	113,008
Total Unrealized Losses	(756)	(370)
U.S. government and agency debt
Investments, Unrealized Loss Position [Line Items]
Less than 12 months Fair Value	59,046	93,118
Less than 12 months Unrealized Losses	(32)	(72)
Total Fair Value	59,046	93,118
Total Unrealized Losses	(32)	(72)
Asset-backed Securities
Investments, Unrealized Loss Position [Line Items]
Less than 12 months Fair Value	36,510	18,865
Less than 12 months Unrealized Losses	(67)	(19)
12 months or more Fair Value		1,912
12 months or more Unrealized Losses		(19)
Total Fair Value	36,510	20,777
Total Unrealized Losses	(67)	(38)
Foreign government and agency debt
Investments, Unrealized Loss Position [Line Items]
Less than 12 months Fair Value	16,572	14,299
Less than 12 months Unrealized Losses	(20)	(44)
Total Fair Value	16,572	14,299
Total Unrealized Losses	(20)	(44)
Municipal debt securities
Investments, Unrealized Loss Position [Line Items]
Less than 12 months Fair Value	3,202	723
Less than 12 months Unrealized Losses	(6)	(4)
Total Fair Value	3,202	723
Total Unrealized Losses	(6)	(4)
Auction rate securities
Investments, Unrealized Loss Position [Line Items]
12 months or more Fair Value	10,077	16,279
12 months or more Unrealized Losses	(2,423)	(2,871)
Total Fair Value	10,077	16,279
Total Unrealized Losses	$ (2,423)	$ (2,871)

Inventories (Detail) - USD ($) $ in Thousands	Nov. 01, 2014	Feb. 01, 2014
Inventory [Line Items]
Work-in-process	$ 197,671	$ 195,495
Finished goods	158,746	152,366
Total inventories	$ 356,417	$ 347,861

Property and Equipment Net (Detail) - USD ($) $ in Thousands	Nov. 01, 2014	Feb. 01, 2014
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 1,022,962	$ 985,064
Less: Accumulated depreciation and amortization	(679,861)	(628,899)
Total property and equipment, net	343,101	356,165
Machinery and equipment
Property, Plant and Equipment [Line Items]
Property and equipment, gross	594,702	562,038
Buildings
Property, Plant and Equipment [Line Items]
Property and equipment, gross	144,320	144,320
Computer software
Property, Plant and Equipment [Line Items]
Property and equipment, gross	97,452	96,096
Land
Property, Plant and Equipment [Line Items]
Property and equipment, gross	53,373	53,373
Building improvements
Property, Plant and Equipment [Line Items]
Property and equipment, gross	49,786	49,645
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property and equipment, gross	50,187	49,060
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Property and equipment, gross	27,746	27,621
Construction in progress
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 5,396	$ 2,911

Other Non Current Assets (Detail) - USD ($) $ in Thousands	Nov. 01, 2014	Feb. 01, 2014
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Line Items]
Technology and other licenses	$ 68,819	$ 83,521
Deferred tax assets	23,442	19,282
Investments in privately-held companies	9,267	14,565
Prepaid land use rights	13,510	13,744
Deposits	11,918	12,433
Other	18,083	16,821
Total other non-current assets	$ 145,039	$ 160,366

Accrued Liabilities (Detail) - USD ($) $ in Thousands	Nov. 01, 2014	Feb. 01, 2014
Schedule of Accrued Liabilities [Line Items]
Accrued rebates	$ 51,407	$ 61,616
Accrued royalties	25,426	36,568
Technology license obligations	17,079	18,482
Accrued legal expense	9,857	14,589
Other	36,315	30,507
Total accrued liabilities	$ 140,084	$ 161,762

Other Long Term Liabilities (Detail) - USD ($) $ in Thousands	Nov. 01, 2014	Feb. 01, 2014
Schedule of Other Liabilities [Line Items]
Technology license obligations	$ 19,085	$ 28,959
Long-term accrued employee compensation	4,622	4,370
Other	12,615	9,140
Other non-current liabilities	$ 36,322	$ 42,469

Changes in Accumulated Other Comprehensive Income (Loss) by Component (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Nov. 01, 2014	Nov. 02, 2013	Nov. 01, 2014	Nov. 02, 2013
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance			$ 597	$ 1,148
Other comprehensive income before reclassifications			(1,088)	2,516
Amounts reclassified from accumulated other comprehensive income			(2,473)	(3,607)
Other comprehensive income (loss), net	$ (3,591)	$ 1,629	(3,561)	(1,091)
Ending Balance	(2,964)	57	(2,964)	57
Unrealized Gain (Loss) on Marketable Securities
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance			2,534	2,742
Other comprehensive income before reclassifications			67	(276)
Amounts reclassified from accumulated other comprehensive income			(1,119)	(923)
Other comprehensive income (loss), net			(1,052)	(1,199)
Ending Balance	1,482	1,543	1,482	1,543
Unrealized Gain (Loss) on Auction Rate Securities
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance			(2,871)	(2,681)
Other comprehensive income before reclassifications			448	(311)
Other comprehensive income (loss), net			448	(311)
Ending Balance	(2,423)	(2,992)	(2,423)	(2,992)
Unrealized Gain (Loss) on Cash Flow Hedges
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance			934	1,087
Other comprehensive income before reclassifications			(1,603)	3,103
Amounts reclassified from accumulated other comprehensive income			(1,354)	(2,684)
Other comprehensive income (loss), net			(2,957)	419
Ending Balance	$ (2,023)	$ 1,506	$ (2,023)	$ 1,506

- Definition

Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge.

+ References + Details

Amounts Reclassified from Accumulated Other Comprehensive Income by Components (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Nov. 01, 2014	Nov. 02, 2013	Nov. 01, 2014	Nov. 02, 2013
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Interest and other income, net	$ 4,764	$ 1,536	$ 18,952	$ 12,949
Cost of goods sold	(454,974)	(464,981)	(1,426,575)	(1,186,478)
Research and development	(288,435)	(296,291)	(878,562)	(867,985)
Selling and marketing	(34,410)	(37,496)	(106,717)	(116,033)
General and administrative	(33,473)	(26,589)	(95,379)	(80,104)
Net income	115,304	103,156	353,653	218,191
Reclassification out of Accumulated Other Comprehensive Income
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net income	614	1,127	2,473	3,607
Reclassification out of Accumulated Other Comprehensive Income \| Unrealized Gain (Loss) on Marketable Securities
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Interest and other income, net	264	380	1,119	923
Reclassification out of Accumulated Other Comprehensive Income \| Unrealized Gain (Loss) on Cash Flow Hedges
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Cost of goods sold	22	41	85	149
Research and development	298	648	1,156	2,319
Selling and marketing	29	53	110	198
General and administrative	$ 1	$ 5	$ 3	$ 18

Computations of Basic and Diluted Net Income Per Share (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Nov. 01, 2014	Nov. 02, 2013	Nov. 01, 2014	Nov. 02, 2013
Numerator:
Net income	$ 115,304	$ 103,156	$ 353,653	$ 218,191
Denominator:
Weighted average shares - basic	513,859	491,979	510,261	496,151
Effect of dilutive securities:
Share-based awards	6,048	9,210	10,048	6,250
Weighted average shares - diluted	519,907	501,189	520,309	502,401
Basic	$ 0.22	$ 0.21	$ 0.69	$ 0.44
Diluted	$ 0.22	$ 0.21	$ 0.68	$ 0.43
Time-based options
Effect of dilutive securities:
Weighted average shares outstanding from stock options	25,092	43,167	22,331	39,854
Weighted average exercise price	$ 17.19	$ 14.71	$ 17.61	$ 15.18
Market Based Option Award
Effect of dilutive securities:
Weighted average shares outstanding from stock options	2,245	2,719	2,306	2,732
Weighted average exercise price	$ 15.43	$ 15.42	$ 15.43	$ 15.43
Stock Options
Effect of dilutive securities:
Weighted average shares outstanding from stock options	27,337	45,886	24,637	42,586
Weighted average exercise price	$ 17.04	$ 14.75	$ 17.41	$ 15.20

Notional Amounts of Outstanding Foreign Currency Forward Contracts (Detail) - USD ($) $ in Thousands	Nov. 01, 2014	Feb. 01, 2014
Foreign Exchange Buy Contracts
Derivative [Line Items]
Derivative, notional amount	$ 72,032	$ 49,097
Foreign Exchange Buy Contracts \| Israeli shekel
Derivative [Line Items]
Derivative, notional amount	51,047	39,670
Foreign Exchange Buy Contracts \| China yuan
Derivative [Line Items]
Derivative, notional amount	15,614
Foreign Exchange Buy Contracts \| Euro
Derivative [Line Items]
Derivative, notional amount	5,371	5,718
Foreign Exchange Buy Contracts \| Swedish krona
Derivative [Line Items]
Derivative, notional amount		$ 3,709
Foreign Exchange Sell Contracts
Derivative [Line Items]
Derivative, notional amount	5,376
Foreign Exchange Sell Contracts \| Euro
Derivative [Line Items]
Derivative, notional amount	$ 5,376

Fair Value Measurements - Additional Information (Detail)	Nov. 01, 2014
Fair Value, Measurement Inputs, Disclosure [Line Items]
Percentage of total amount of assets measured using Level 3 valuation methodologies to total assets	0.20%

Financial Assets that were Accounted for at Fair Value (Detail) - USD ($) $ in Thousands	Nov. 01, 2014	Feb. 01, 2014
Portion of Carrying Value Measured at Fair Value
Assets
Total assets	$ 1,496,397	$ 1,294,100
Portion of Carrying Value Measured at Fair Value \| Accrued Liabilities \| Foreign currency forward contracts
Liabilities
Accrued liabilities	2,402	26
Cash equivalents \| Portion of Carrying Value Measured at Fair Value \| U.S. government and agency debt
Assets
Cash equivalents	12,200	11,999
Cash equivalents \| Portion of Carrying Value Measured at Fair Value \| Money market funds
Assets
Cash equivalents	16,290	2,804
Cash equivalents \| Portion of Carrying Value Measured at Fair Value \| Time deposits
Assets
Cash equivalents	206,580	247,958
Cash equivalents \| Portion of Carrying Value Measured at Fair Value \| Municipal debt securities
Assets
Cash equivalents	1,908	4,800
Cash equivalents \| Portion of Carrying Value Measured at Fair Value \| Corporate debt securities
Assets
Cash equivalents	28,332	3,400
Short-term Investments \| Portion of Carrying Value Measured at Fair Value \| U.S. government and agency debt
Assets
Investments	234,753	301,479
Short-term Investments \| Portion of Carrying Value Measured at Fair Value \| Municipal debt securities
Assets
Investments	23,230	16,099
Short-term Investments \| Portion of Carrying Value Measured at Fair Value \| Corporate debt securities
Assets
Investments	843,852	589,514
Short-term Investments \| Portion of Carrying Value Measured at Fair Value \| Asset-backed Securities
Assets
Investments	85,866	76,271
Short-term Investments \| Portion of Carrying Value Measured at Fair Value \| Foreign government and agency debt
Assets
Investments	28,084	20,292
Short-term Investments \| Portion of Carrying Value Measured at Fair Value \| Auction rate securities
Assets
Investments	3,000
Prepaid expenses and other current assets \| Portion of Carrying Value Measured at Fair Value \| Foreign currency forward contracts
Assets
Prepaid expenses and other current assets	384	1,012
Long-term investments \| Portion of Carrying Value Measured at Fair Value \| Auction rate securities
Assets
Investments	10,077	16,279
Other non-current assets \| Portion of Carrying Value Measured at Fair Value \| Severance Pay Fund
Assets
Other non-current asset	1,841	2,193
Level 1 \| Items measured at fair value
Assets
Total assets	263,243	316,282
Level 1 \| Cash equivalents \| Items measured at fair value \| U.S. government and agency debt
Assets
Cash equivalents	12,200	11,999
Level 1 \| Cash equivalents \| Items measured at fair value \| Money market funds
Assets
Cash equivalents	16,290	2,804
Level 1 \| Short-term Investments \| Items measured at fair value \| U.S. government and agency debt
Assets
Investments	234,753	301,479
Level 2 \| Items measured at fair value
Assets
Total assets	1,223,077	961,539
Level 2 \| Items measured at fair value \| Accrued Liabilities \| Foreign currency forward contracts
Liabilities
Accrued liabilities	2,402	26
Level 2 \| Cash equivalents \| Items measured at fair value \| Time deposits
Assets
Cash equivalents	206,580	247,958
Level 2 \| Cash equivalents \| Items measured at fair value \| Municipal debt securities
Assets
Cash equivalents	1,908	4,800
Level 2 \| Cash equivalents \| Items measured at fair value \| Corporate debt securities
Assets
Cash equivalents	28,332	3,400
Level 2 \| Short-term Investments \| Items measured at fair value \| Municipal debt securities
Assets
Investments	23,230	16,099
Level 2 \| Short-term Investments \| Items measured at fair value \| Corporate debt securities
Assets
Investments	843,852	589,514
Level 2 \| Short-term Investments \| Items measured at fair value \| Asset-backed Securities
Assets
Investments	85,866	76,271
Level 2 \| Short-term Investments \| Items measured at fair value \| Foreign government and agency debt
Assets
Investments	28,084	20,292
Level 2 \| Short-term Investments \| Items measured at fair value \| Auction rate securities
Assets
Investments	3,000
Level 2 \| Prepaid expenses and other current assets \| Items measured at fair value \| Foreign currency forward contracts
Assets
Prepaid expenses and other current assets	384	1,012
Level 2 \| Other non-current assets \| Items measured at fair value \| Severance Pay Fund
Assets
Other non-current asset	1,841	2,193
Level 3 \| Items measured at fair value
Assets
Total assets	10,077	16,279
Level 3 \| Long-term investments \| Items measured at fair value \| Auction rate securities
Assets
Investments	$ 10,077	$ 16,279

Summary of Change in Fair Values for Level Three Items (Detail) - USD ($) $ in Thousands	9 Months Ended
	Nov. 01, 2014	Nov. 02, 2013
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning balance	$ 16,279	$ 16,769
Sales and redemptions	(3,650)	(300)
Transfer out	(3,000)
Unrealized losses included in accumulated other comprehensive income	448	(311)
Ending balance	$ 10,077	$ 16,158

Acquired Intangible Assets Net (Detail) - USD ($) $ in Thousands	9 Months Ended
	Nov. 01, 2014	Feb. 01, 2014
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amounts	$ 81,490	$ 84,876
Accumulated Amortization and Write-Offs	(47,207)	(35,841)
Net Carrying Amount	34,283	49,035
In-process research and development
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amounts, Indefinite-Lived		3,386
Accumulated Amortization and Write-Offs, Indefinite-Lived	0	0
Net Carrying Amount, Indefinite-Lived		3,386
Purchased technology
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amounts, Finite-Lived	49,240	49,240
Accumulated Amortization and Write-Offs	(27,369)	(20,634)
Net Carrying Amount, Finite-Lived	$ 21,871	28,606
Purchased technology \| Minimum
Acquired Finite-Lived Intangible Assets [Line Items]
Useful Lives	4 years
Purchased technology \| Maximum
Acquired Finite-Lived Intangible Assets [Line Items]
Useful Lives	6 years
Core technology
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amounts, Finite-Lived	$ 2,350	2,350
Accumulated Amortization and Write-Offs	(1,850)	(1,583)
Net Carrying Amount, Finite-Lived	$ 500	767
Core technology \| Minimum
Acquired Finite-Lived Intangible Assets [Line Items]
Useful Lives	5 years
Core technology \| Maximum
Acquired Finite-Lived Intangible Assets [Line Items]
Useful Lives	8 years
Trade names
Acquired Finite-Lived Intangible Assets [Line Items]
Useful Lives	5 years
Gross Carrying Amounts, Finite-Lived	$ 1,300	1,300
Accumulated Amortization and Write-Offs	(763)	(568)
Net Carrying Amount, Finite-Lived	537	732
Customer intangibles
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amounts, Finite-Lived	28,600	28,600
Accumulated Amortization and Write-Offs	(17,225)	(13,056)
Net Carrying Amount, Finite-Lived	$ 11,375	$ 15,544
Customer intangibles \| Minimum
Acquired Finite-Lived Intangible Assets [Line Items]
Useful Lives	5 years
Customer intangibles \| Maximum
Acquired Finite-Lived Intangible Assets [Line Items]
Useful Lives	6 years

Acquired Intangible Assets, Net - Additional Information (Detail) $ in Millions	9 Months Ended
	Nov. 01, 2014 USD ($)
Goodwill and Intangible Assets Disclosure [Line Items]
Write off of acquired IPR&D	$ 3.4

Future Amortization Expense of Identified Intangibles (Detail) - In Process Research and Development Excluded $ in Thousands	Nov. 01, 2014 USD ($)
Fiscal Year
Remainder of fiscal 2015	$ 3,585
2016	12,212
2017	11,027
2018	5,599
2019	1,860
Thereafter	0
Net Carrying Amount, Finite-Lived	$ 34,283

Restructuring Charges (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
Restructuring Charges (Detail) - USD ($) $ in Thousands	Nov. 01, 2014	Nov. 02, 2013	Nov. 01, 2014	Nov. 02, 2013
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 1,202		$ 7,008
Restructuring charges	1,202	$ 4,208	10,411	$ 4,614
Severance and Related Costs
Restructuring Cost and Reserve [Line Items]
Restructuring charges	72		5,107
Facilities and Related Costs
Restructuring Cost and Reserve [Line Items]
Restructuring charges	1,117		1,815
Other Exit-Related Costs
Restructuring Cost and Reserve [Line Items]
Restructuring charges	13		86
Research and development
Restructuring Cost and Reserve [Line Items]
Restructuring charges	87	2,886	5,181	2,886
Selling and marketing
Restructuring Cost and Reserve [Line Items]
Restructuring charges		795		795
General and administrative
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 1,115	$ 527	1,844	$ 933
Write-off of acquired intangible assets
Restructuring Cost and Reserve [Line Items]
Restructuring charges			3,386
Equipment
Restructuring Cost and Reserve [Line Items]
Restructuring charges			$ 17

Reconciliation of Beginning and Ending Restructuring Liability Balances by Major Type of Costs (Detail) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Nov. 01, 2014	Nov. 01, 2014
Restructuring Cost and Reserve [Line Items]
Restructuring liabilities, beginning of balance		$ 2,453
Restructuring charges	$ 1,202	7,008
Net cash payments		(7,057)
Restructuring liabilities, ending balance	2,404	2,404
Severance and Related Costs
Restructuring Cost and Reserve [Line Items]
Restructuring liabilities, beginning of balance		51
Restructuring charges	72	5,107
Net cash payments		(5,124)
Restructuring liabilities, ending balance	34	34
Facilities and Related Costs
Restructuring Cost and Reserve [Line Items]
Restructuring liabilities, beginning of balance		2,383
Restructuring charges	1,117	1,815
Net cash payments		(1,828)
Restructuring liabilities, ending balance	2,370	2,370
Other Exit-Related Costs
Restructuring Cost and Reserve [Line Items]
Restructuring liabilities, beginning of balance		19
Restructuring charges	$ 13	86
Net cash payments		$ (105)

Restructuring - Additional Information (Detail)	9 Months Ended
Restructuring - Additional Information (Detail)	Nov. 01, 2014
Through Fiscal Year 2018
Restructuring Cost and Reserve [Line Items]
Year of expected payments under lease obligations	2018

Income Tax - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		9 Months Ended
	Nov. 01, 2014	Nov. 02, 2013	Nov. 01, 2014	Nov. 02, 2013
Income Taxes [Line Items]
Current income tax liability	$ 4.5	$ 4.3	$ 15.1	$ 11.3
Net reduction in unrecognized tax benefits		(7.3)	(8.9)	(23.8)
Tax benefit from an increase in deferred tax asset due to change in negotiated development and expansion incentive	0.9	0.9	11.5	0.9
Reduction in unrecognized tax benefits arising from the expiration of statute of limitations			13.2
Increase in current year unrecognized tax benefit estimates			4.3
Tax benefit due to return-to-provision adjustments	0.4	2.5	0.4	2.5
Settlements of audits in non-U.S. jurisdictions				0.7
Uncertain tax positions decrease from the lapse of the statutes of limitation in various jurisdictions during the next 12 months	(17.0)		(17.0)
Tax incentives, tax savings amount	$ 1.8	$ 5.7	$ 12.3	$ 14.9
Tax incentives, per share effect on earning	$ 0.01		$ 0.02
Cash, cash equivalents and short-term investments	$ 2,400.0		$ 2,400.0
Undistributed earnings of foreign subsidiaries	500.0		500.0
Foreign Subsidiaries
Income Taxes [Line Items]
Cash, cash equivalents and short-term investments	$ 900.0		900.0
Increase (decrease) in tax expense in the event of undistributed earnings needed by the parent company or no longer considered indefinitely reinvested outside of Bermuda			$ 150.0
Maximum
Income Taxes [Line Items]
Tax incentives, per share effect on earning		$ 0.01		$ 0.03
Audit Settlement One
Income Taxes [Line Items]
Settlements of audits in non-U.S. jurisdictions				$ 3.5
Audit Settlement Two
Income Taxes [Line Items]
Settlements of audits in non-U.S. jurisdictions				$ 4.1

Commitments and Contingencies - Additional Information (Detail) - USD ($) $ in Millions				9 Months Ended
	Mar. 31, 2014	Dec. 26, 2012	Jun. 30, 2010	Nov. 01, 2014	Nov. 14, 2014	May 14, 2014
Commitments and Contingencies Disclosure [Line Items]
Accrued liability related to legal proceedings				$ 3.2
Carrying value of pledged assets				$ 147.0
Lake Cherokee Patent I Litigation
Commitments and Contingencies Disclosure [Line Items]
Loss contingency, damages claim			$ 193.0
Carnegie Mellon Litigation
Commitments and Contingencies Disclosure [Line Items]
Date of lawsuit filed				Mar. 06, 2009
Loss contingency, awarded amount	$ 1,540.0	$ 1,170.0
Pre-judgment interest		$ 322.0
Additional royalties				$ 350.0
Loss contingency, range of possible loss, minimum				0.0
Surety Bond
Commitments and Contingencies Disclosure [Line Items]
Bond						$ 1,540.0
Surety Bond \| Subsequent Event
Commitments and Contingencies Disclosure [Line Items]
Bond					$ 216.0
Commitment Letter \| Subsequent Event
Commitments and Contingencies Disclosure [Line Items]
Bond					$ 95.0
Manufacturing Expense
Commitments and Contingencies Disclosure [Line Items]
Purchase commitment, outstanding commitment				$ 213.9

Stock Option Plan Activity (Detail) shares in Thousands	9 Months Ended
Stock Option Plan Activity (Detail) shares in Thousands	Nov. 01, 2014 $ / shares shares
Options Outstanding
Beginning Balance \| shares	51,779
Granted \| shares	6,177
Exercised \| shares	(3,052)
Canceled/Forfeited \| shares	(4,284)
Ending Balance \| shares	50,620
Weighted Average Exercise Price
Beginning Balance \| $ / shares	$ 13.51
Granted \| $ / shares	15.35
Exercised \| $ / shares	10.44
Canceled/Forfeited \| $ / shares	14.79
Ending Balance \| $ / shares	$ 13.81
Time Based Option Award
Options Outstanding
Beginning Balance \| shares	49,156
Granted \| shares	6,177
Exercised \| shares	(3,052)
Canceled/Forfeited \| shares	(3,896)
Ending Balance \| shares	48,385
Vested or expected to vest at November 1, 2014 \| shares	45,280
Exercisable at November 1, 2014 \| shares	23,453
Weighted Average Exercise Price
Beginning Balance \| $ / shares	$ 13.40
Granted \| $ / shares	15.35
Exercised \| $ / shares	10.44
Canceled/Forfeited \| $ / shares	14.73
Ending Balance \| $ / shares	13.73
Vested or expected to vest at November 1, 2014 \| $ / shares	13.79
Exercisable at November 1, 2014 \| $ / shares	$ 15.15
Market Based Option Award
Options Outstanding
Beginning Balance \| shares	2,623
Canceled/Forfeited \| shares	(388)
Ending Balance \| shares	2,235
Weighted Average Exercise Price
Beginning Balance \| $ / shares	$ 15.43
Canceled/Forfeited \| $ / shares	15.43
Ending Balance \| $ / shares	$ 15.43

Shareholders' Equity - Additional Information (Detail) - USD ($) $ / shares in Units, shares in Millions, $ in Millions		1 Months Ended	3 Months Ended		9 Months Ended
	Nov. 20, 2014	Apr. 30, 2014	Nov. 01, 2014	Nov. 02, 2013	Nov. 01, 2014	Nov. 02, 2013	Oct. 31, 2014
Stockholders Equity Note [Line Items]
Closing stock price							$ 13.44
Share repurchase program, shares repurchased			3.7	6.1	3.7	33.2
Share repurchase program, amount repurchased			$ 45.0	$ 71.3	$ 45.0	$ 354.1
Share repurchase program, cumulative shares repurchased			220.5		220.5
Share repurchase program, total amount of repurchases			$ 2,800.0		$ 2,800.0
Share repurchase program, remaining available for future share repurchases			$ 213.4		$ 213.4
Dividend per share, declared			$ 0.06	$ 0.06	$ 0.18	$ 0.18
Dividends declared, date to be paid					Dec. 29, 2014
Dividends declared, date of record					Dec. 11, 2014
Subsequent Event
Stockholders Equity Note [Line Items]
Dividend per share, declared	$ 0.06
Time Based Option Award
Stockholders Equity Note [Line Items]
Options vested and expected to vest, aggregate intrinsic value			$ 72.9		$ 72.9
Options vested and expected to vest, weighted average remaining contractual term (in years)					6 years
Options exercisable, aggregate intrinsic value			36.3		$ 36.3
Options exercisable, weighted average remaining contractual term (in years)					3 years 8 months 12 days
Aggregate intrinsic value of stock options exercised			1.5	$ 5.6	$ 15.1	$ 21.7
Unrecognized share based compensation cost			60.3		$ 60.3
Unrecognized share based compensation cost, weighted-average period of recognition					2 years 6 months
Market Based Option Award
Stockholders Equity Note [Line Items]
Options vested and expected to vest, aggregate intrinsic value			0.0		$ 0.0
Options vested and expected to vest, weighted average remaining contractual term (in years)					6 years 6 months
Restricted Stock Units (RSUs)
Stockholders Equity Note [Line Items]
Unrecognized share based compensation cost			99.1		$ 99.1
Unrecognized share based compensation cost, weighted-average period of recognition					1 year 7 months 6 days
Restricted stock units, aggregate intrinsic value			$ 140.6		$ 140.6
Restricted stock units vested and expected to vest			10.5		10.5
Performance Based Restricted Stock Unit
Stockholders Equity Note [Line Items]
Performance awards vesting period					2 years
Performance Based Restricted Stock Unit \| Vesting Period One
Stockholders Equity Note [Line Items]
Performance awards vesting percentage					50.00%
Performance awards vesting Date					Apr. 01, 2015
Performance Based Restricted Stock Unit \| Vesting Period Two
Stockholders Equity Note [Line Items]
Performance awards vesting percentage					50.00%
Performance awards vesting Date					Apr. 01, 2016
Executive Performance Awards \| Financial Performance RSU \| First Anniversary
Stockholders Equity Note [Line Items]
Performance awards vesting percentage		50.00%
Executive Performance Awards \| Financial Performance RSU \| Second Anniversary
Stockholders Equity Note [Line Items]
Performance awards vesting percentage		50.00%
Executive Performance Awards \| Strategic Performance Award \| First Anniversary
Stockholders Equity Note [Line Items]
Performance awards vesting percentage		50.00%
Executive Performance Awards \| Strategic Performance Award \| Second Anniversary
Stockholders Equity Note [Line Items]
Performance awards vesting percentage		50.00%
Employee Stock Purchase Plan, 2000 Restated Plan
Stockholders Equity Note [Line Items]
Unrecognized share based compensation cost			$ 6.1		$ 6.1
Employee stock purchase plan, shares issued			0.0	0.0	5.2	5.0
Employee stock purchase plan, weighted-average price			$ 7.58	$ 7.34	$ 7.58	$ 7.34

Activity Related to Non Vested Portion of Restricted Stock Units (Detail)
shares in Thousands

9 Months Ended

Nov. 01, 2014

$ / shares

Time Based Restricted Units

Restricted Stock Units Outstanding

Beginning Balance | shares

11,254

Granted | shares

5,435

Vested | shares

(5,652)

Canceled/Forfeited | shares

(908)

Ending Balance | shares

10,129

Weighted Average Grant Date Fair Value

Beginning Balance | $ / shares

$ 14.11

Granted | $ / shares

15.23

Vested | $ / shares

13.95

Canceled/Forfeited | $ / shares

14.25

Ending Balance | $ / shares

$ 14.82

Performance Based Restricted Stock Unit

Restricted Stock Units Outstanding

Beginning Balance | shares

100

Granted | shares

1,277

^[1]

Vested | shares

(3)

Canceled/Forfeited | shares

(110)

Ending Balance | shares

1,264

Weighted Average Grant Date Fair Value

Beginning Balance | $ / shares

$ 10.52

Granted | $ / shares

14.98

^[1]

Vested | $ / shares

10.52

Canceled/Forfeited | $ / shares

10.96

Ending Balance | $ / shares

$ 14.99

Restricted Stock Units (RSUs)

Restricted Stock Units Outstanding

Beginning Balance | shares

11,354

Granted | shares

6,712

Vested | shares

(5,655)

Canceled/Forfeited | shares

(1,018)

Ending Balance | shares

11,393

Weighted Average Grant Date Fair Value

Beginning Balance | $ / shares

$ 14.08

Granted | $ / shares

15.18

Vested | $ / shares

13.95

Canceled/Forfeited | $ / shares

13.89

Ending Balance | $ / shares

$ 14.84

[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 financial and strategic goals is achieved.

Activity Related to Non Vested Portion of Restricted Stock Units (Parenthetical) (Detail)	9 Months Ended
	Nov. 01, 2014
Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock unit vested	200.00%

Schedule of Cash Dividends (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Nov. 01, 2014	Nov. 02, 2013	Nov. 01, 2014	Nov. 02, 2013
Cash dividend
Cash dividend per share	$ 0.06	$ 0.06	$ 0.18	$ 0.18
Total payment to shareholders (in thousands)	$ 30,867	$ 29,516	$ 91,859	$ 89,560

Total Stock Compensation by Expense (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Nov. 01, 2014	Nov. 02, 2013	Nov. 01, 2014	Nov. 02, 2013
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Share-based compensation expense	$ 34,294	$ 43,201	$ 99,283	$ 117,805
Cost of goods sold
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Share-based compensation expense	1,934	2,531	5,966	6,266
Research and development
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Share-based compensation expense	24,198	30,084	68,842	82,345
Selling and marketing
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Share-based compensation expense	2,855	3,738	8,400	10,778
General and administrative
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Share-based compensation expense	$ 5,307	$ 6,848	$ 16,075	$ 18,416

Share Based Compensation - Additional Information (Detail) - USD ($) $ in Millions	Nov. 01, 2014	Feb. 01, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation capitalized in inventory	$ 1.5	$ 1.7

Weighted Average Assumptions Used to Calculate Fair Value of Time Based Equity Award (Detail) - Time Based Option Award - $ / shares	3 Months Ended		9 Months Ended
	Nov. 01, 2014	Nov. 02, 2013	Nov. 01, 2014	Nov. 02, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average fair value	$ 3.43	$ 3.91	$ 4.35	$ 3.42
Expected volatility	34.00%	42.00%	35.00%	45.00%
Expected term (in years)	5 years	5 years	5 years	5 years
Risk-free interest rate	1.70%	1.50%	1.60%	0.80%
Expected dividend yield	1.80%	2.00%	1.60%	2.40%

Valuation Assumptions (Detail) - Employee Stock Purchase Plan - $ / shares	9 Months Ended
	Nov. 01, 2014	Nov. 02, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Estimated fair value	$ 4.13	$ 3.45
Volatility	32.00%	40.00%
Expected term (in years)	1 year 3 months 18 days	1 year 3 months 18 days
Risk-free interest rate	0.20%	0.20%
Dividend yield	1.60%	2.20%