Marvell Technology 10-Q 4 Dec 20 2021 Q3 Quarterly report Financial data

Cover Page

Cover Page - shares shares in Millions	9 Months Ended
	Oct. 31, 2020	Nov. 27, 2020
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Oct. 31, 2020
Document Transition Report	false
Entity File Number	000-30877
Entity Registrant Name	MARVELL TECHNOLOGY GROUP LTD
Entity Incorporation, State or Country Code	D0
Entity Tax Identification Number	77-0481679
Entity Address, Address Line One	Victoria Place, 5th Floor, 31 Victoria Street
Entity Address, City or Town	Hamilton
Entity Address, Postal Zip Code	HM 10
Entity Address, Country	BM
City Area Code	441
Local Phone Number	294-8096
Title of 12(b) Security	Common Stock, par value $0.002 per share
Trading Symbol	MRVL
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		671.8
Amendment Flag	false
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q3
Entity Central Index Key	0001058057
Current Fiscal Year End Date	--01-30

UNAUDITED CONDENSED CONSOLIDATE

UNAUDITED CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Oct. 31, 2020	Feb. 01, 2020
Current assets:
Cash and cash equivalents	$ 832,041	$ 647,604
Accounts receivable, net	490,271	492,346
Inventories	268,396	322,980
Prepaid expenses and other current assets	68,618	74,567
Total current assets	1,659,326	1,537,497
Property and equipment, net	331,769	357,092
Goodwill	5,336,356	5,337,405
Acquired intangible assets, net	2,380,382	2,764,600
Deferred tax assets	646,837	639,791
Other non-current assets	470,102	496,850
Total assets	10,824,772	11,133,235
Current liabilities:
Accounts payable	224,112	213,747
Accrued liabilities	406,986	346,639
Accrued employee compensation	187,982	149,780
Short-term debt	349,004	0
Total current liabilities	1,168,084	710,166
Long-term debt	992,801	1,439,024
Other non-current liabilities	274,270	305,465
Total liabilities	2,435,155	2,454,655
Commitments and contingencies (Note 10)
Shareholders’ equity:
Common shares, $0.002 par value	1,343	1,328
Additional paid-in capital	6,260,906	6,135,939
Retained earnings	2,127,368	2,541,313
Total shareholders’ equity	8,389,617	8,678,580
Total liabilities and shareholders’ equity	$ 10,824,772	$ 11,133,235

UNAUDITED CONDENSED CONSOLIDA_2

UNAUDITED CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares	Oct. 31, 2020	Feb. 01, 2020
Statement of Financial Position [Abstract]
Common shares, par value (in dollars per share)	$ 0.002	$ 0.002

UNAUDITED CONDENSED CONSOLIDA_3

UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 31, 2020	Nov. 02, 2019	Oct. 31, 2020	Nov. 02, 2019
Income Statement [Abstract]
Net revenue	$ 750,143	$ 662,470	$ 2,171,081	$ 1,981,490
Cost of goods sold	369,083	322,403	1,103,863	929,293
Gross profit	381,060	340,067	1,067,218	1,052,197
Operating expenses:
Research and development	255,637	267,781	812,360	801,002
Selling, general and administrative	115,501	118,993	350,322	342,988
Restructuring related charges	19,312	14,802	161,189	37,070
Total operating expenses	390,450	401,576	1,323,871	1,181,060
Operating loss	(9,390)	(61,509)	(256,653)	(128,863)
Interest income	608	1,092	2,243	3,437
Interest expense	(16,066)	(21,241)	(48,531)	(62,975)
Other income (loss), net	299	689	3,613	(1,624)
Interest and other income (loss), net	(15,159)	(19,460)	(42,675)	(61,162)
Loss before income taxes	(24,549)	(80,969)	(299,328)	(190,025)
Provision (benefit) for income taxes	(1,641)	1,532	(5,494)	(1,743)
Net loss	$ (22,908)	$ (82,501)	$ (293,834)	$ (188,282)
Net loss per share - basic (in dollars per share)	$ (0.03)	$ (0.12)	$ (0.44)	$ (0.28)
Net loss per share - diluted (in dollars per share)	$ (0.03)	$ (0.12)	$ (0.44)	$ (0.28)
Weighted-average shares:
Basic (in shares)	670,487	668,178	667,186	667,184
Diluted (in shares)	670,487	668,178	667,186	667,184

UNAUDITED CONDENSED CONSOLIDA_4

UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 31, 2020	Nov. 02, 2019	Oct. 31, 2020	Nov. 02, 2019
Statement of Comprehensive Income [Abstract]
Net loss	$ (22,908)	$ (82,501)	$ (293,834)	$ (188,282)
Other comprehensive income (loss), net of tax:
Net change in unrealized gain (loss) on cash flow hedges	(450)	37	0	37
Other comprehensive income (loss), net of tax	(450)	37	0	37
Comprehensive loss, net of tax	$ (23,358)	$ (82,464)	$ (293,834)	$ (188,245)

UNAUDITED CONDENSED CONSOLIDA_5

UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock	Additional Paid-in-Capital	Accumulated Other Comprehensive Income (Loss)	Retained Earnings
Balance at beginning of period (in shares) at Feb. 02, 2019		658,514
Balance at beginning of period at Feb. 02, 2019	$ 7,306,410	$ 1,317	$ 6,188,598	$ 0	$ 1,116,495
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common shares in connection with equity incentive plans (in shares)		5,120
Issuance of common shares in connection with equity incentive plans	30,996	$ 11	30,985
Tax withholdings related to net share settlement of restricted stock units	(28,756)		(28,756)
Share-based compensation	59,422		59,422
Repurchase of common stock (in shares)		(2,359)
Repurchase of common stock	(50,023)	$ (5)	(50,018)
Cash dividends declared and paid ($0.06 per share)	(39,467)				(39,467)
Net loss	(48,450)				(48,450)
Balance at end of period (in shares) at May. 04, 2019		661,275
Balance at end of period at May. 04, 2019	7,230,132	$ 1,323	6,200,231	0	1,028,578
Balance at beginning of period (in shares) at Feb. 02, 2019		658,514
Balance at beginning of period at Feb. 02, 2019	7,306,410	$ 1,317	6,188,598	0	1,116,495
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(188,282)
Other comprehensive income	37
Balance at end of period (in shares) at Nov. 02, 2019		670,294
Balance at end of period at Nov. 02, 2019	7,165,818	$ 1,341	6,355,723	37	808,717
Balance at beginning of period (in shares) at May. 04, 2019		661,275
Balance at beginning of period at May. 04, 2019	7,230,132	$ 1,323	6,200,231	0	1,028,578
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common shares in connection with equity incentive plans (in shares)		6,167
Issuance of common shares in connection with equity incentive plans	50,506	$ 12	50,494
Tax withholdings related to net share settlement of restricted stock units	(32,881)		(32,881)
Share-based compensation	64,117		64,117
Issuance of warrant for common stock	3,407		3,407
Repurchase of common stock (in shares)		(627)
Repurchase of common stock	(14,249)	$ (1)	(14,248)
Cash dividends declared and paid ($0.06 per share)	(39,889)				(39,889)
Net loss	(57,331)				(57,331)
Balance at end of period (in shares) at Aug. 03, 2019		666,815
Balance at end of period at Aug. 03, 2019	7,203,812	$ 1,334	6,271,120	0	931,358
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common shares in connection with equity incentive plans (in shares)		3,479
Issuance of common shares in connection with equity incentive plans	21,569	$ 7	21,562
Tax withholdings related to net share settlement of restricted stock units	(19,217)		(19,217)
Share-based compensation	66,738		66,738
Replacement equity awards attributable to pre-acquisition service	15,520		15,520
Cash dividends declared and paid ($0.06 per share)	(40,140)				(40,140)
Net loss	(82,501)				(82,501)
Other comprehensive income	37			37
Balance at end of period (in shares) at Nov. 02, 2019		670,294
Balance at end of period at Nov. 02, 2019	7,165,818	$ 1,341	6,355,723	37	808,717
Balance at beginning of period (in shares) at Feb. 01, 2020		663,481
Balance at beginning of period at Feb. 01, 2020	8,678,580	$ 1,328	6,135,939	0	2,541,313
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common shares in connection with equity incentive plans (in shares)		2,993
Issuance of common shares in connection with equity incentive plans	5,471	$ 5	5,466
Tax withholdings related to net share settlement of restricted stock units	(31,498)		(31,498)
Share-based compensation	60,199		60,199
Repurchase of common stock (in shares)		(1,251)
Repurchase of common stock	(25,202)	$ (3)	(25,199)
Cash dividends declared and paid ($0.06 per share)	(39,763)				(39,763)
Net loss	(113,033)				(113,033)
Other comprehensive income	868			868
Balance at end of period (in shares) at May. 02, 2020		665,223
Balance at end of period at May. 02, 2020	8,535,622	$ 1,330	6,144,907	868	2,388,517
Balance at beginning of period (in shares) at Feb. 01, 2020		663,481
Balance at beginning of period at Feb. 01, 2020	8,678,580	$ 1,328	6,135,939	0	2,541,313
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(293,834)
Other comprehensive income	0
Balance at end of period (in shares) at Oct. 31, 2020		671,737
Balance at end of period at Oct. 31, 2020	8,389,617	$ 1,343	6,260,906	0	2,127,368
Balance at beginning of period (in shares) at May. 02, 2020		665,223
Balance at beginning of period at May. 02, 2020	8,535,622	$ 1,330	6,144,907	868	2,388,517
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common shares in connection with equity incentive plans (in shares)		4,794
Issuance of common shares in connection with equity incentive plans	42,773	$ 10	42,763
Tax withholdings related to net share settlement of restricted stock units	(25,212)		(25,212)
Share-based compensation	62,784		62,784
Cash dividends declared and paid ($0.06 per share)	(40,119)				(40,119)
Net loss	(157,893)				(157,893)
Other comprehensive income	(418)			(418)
Balance at end of period (in shares) at Aug. 01, 2020		670,017
Balance at end of period at Aug. 01, 2020	8,417,537	$ 1,340	6,225,242	450	2,190,505
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common shares in connection with equity incentive plans (in shares)		1,720
Issuance of common shares in connection with equity incentive plans	2,254	$ 3	2,251
Tax withholdings related to net share settlement of restricted stock units	(25,911)		(25,911)
Share-based compensation	59,324		59,324
Cash dividends declared and paid ($0.06 per share)	(40,229)				(40,229)
Net loss	(22,908)				(22,908)
Other comprehensive income	(450)			(450)
Balance at end of period (in shares) at Oct. 31, 2020		671,737
Balance at end of period at Oct. 31, 2020	$ 8,389,617	$ 1,343	$ 6,260,906	$ 0	$ 2,127,368

UNAUDITED CONDENSED CONSOLIDA_6

UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (Parenthetical) - $ / shares	3 Months Ended
	Oct. 31, 2020	Aug. 01, 2020	May 02, 2020	Nov. 02, 2019	Aug. 03, 2019	May 04, 2019
Statement of Stockholders' Equity [Abstract]
Cash dividends declared (in dollars per share)	$ 0.06	$ 0.06	$ 0.06	$ 0.06	$ 0.06	$ 0.06
Cash dividends paid (in dollars per share)	$ 0.06	$ 0.06	$ 0.06	$ 0.06	$ 0.06	$ 0.06

UNAUDITED CONDENSED CONSOLIDA_7

UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Oct. 31, 2020	Nov. 02, 2019
Cash flows from operating activities:
Net loss	$ (293,834)	$ (188,282)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization	149,922	112,662
Share-based compensation	182,060	189,036
Amortization of acquired intangible assets	333,934	253,467
Amortization of inventory fair value adjustment associated with acquisitions	17,284	3,316
Restructuring related impairment charges	123,559	16,243
Other expense, net	23,080	14,814
Changes in assets and liabilities:
Accounts receivable	2,075	8,374
Inventories	29,817	(30,602)
Prepaid expenses and other assets	(8,692)	(11,039)
Accounts payable	34,768	30,801
Accrued liabilities and other non-current liabilities	26,817	(106,258)
Accrued employee compensation	38,202	11,927
Net cash provided by operating activities	658,992	304,459
Cash flows from investing activities:
Sales of available-for-sale securities	0	18,832
Purchases of technology licenses	(8,476)	(1,936)
Purchases of property and equipment	(88,242)	(62,935)
Cash payment for acquisition, net of cash and cash equivalents acquired	0	(477,579)
Other, net	223	(1,793)
Net cash used in investing activities	(96,495)	(525,411)
Cash flows from financing activities:
Repurchases of common stock	(25,202)	(64,272)
Proceeds from employee stock plans	50,490	103,109
Tax withholding paid on behalf of employees for net share settlement	(82,626)	(80,862)
Dividend payments to shareholders	(120,111)	(119,496)
Payments on technology license obligations	(76,794)	(57,213)
Proceeds from issuance of debt	0	350,000
Principal payments of debt	(100,000)	(50,000)
Payment of debt financing costs	(22,313)	0
Other, net	(1,504)	(4,355)
Net cash provided by (used in) financing activities	(378,060)	76,911
Net increase (decrease) in cash and cash equivalents	184,437	(144,041)
Cash and cash equivalents at beginning of period	647,604	582,410
Cash and cash equivalents at end of period	$ 832,041	$ 438,369

Basis of Presentation

Basis of Presentation	9 Months Ended
	Oct. 31, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Basis of Presentation The unaudited condensed consolidated financial statements of Marvell Technology Group Ltd., a Bermuda exempted company, and its wholly owned subsidiaries (the “Company”), as of and for the three and nine months ended October 31, 2020, have been prepared as required by the U.S. Securities and Exchange Commission (the “SEC”). Certain information and footnote disclosures normally included in financial statements prepared in accordance with U.S. generally accepted accounting principles (“U.S. GAAP”) have been condensed or omitted as permitted by the SEC. These unaudited condensed consolidated financial statements and related notes should be read in conjunction with the Company's fiscal year 2020 audited financial statements included in the Company's Annual Report on Form 10-K for the fiscal year ended February 1, 2020. In the opinion of management, the financial statements include all adjustments, including normal recurring adjustments and other adjustments, that are considered necessary for fair presentation of the Company’s financial position and results of operations. All inter-company accounts and transactions have been eliminated. Operating results for the periods presented herein are not necessarily indicative of the results that may be expected for the entire year. Certain prior year amounts have been reclassified to conform to current year presentation. These amounts were not material to any of the periods presented. These financial statements should also be read in conjunction with the Company’s critical accounting policies included in the Company’s Annual Report on Form 10-K for the year ended February 1, 2020 and those included in this Form 10-Q below. The Company’s fiscal year is the 52- or 53-week period ending on the Saturday closest to January 31. Accordingly, every fifth or sixth fiscal year will have a 53-week period. The additional week in a 53-week year is added to the fourth quarter, making such quarter consist of 14 weeks. Fiscal 2020 had a 52-week year. Fiscal 2021 is a 52-week year. On October 29, 2020, the Company entered into a merger agreement (the “Merger Agreement”) with Inphi Corporation (“Inphi”), whereby the Company will pay Inphi's stockholders $66 per share in cash and 2.323 common shares for each Inphi share, which represents purchase consideration of approximately $10 billion. The Company intends to fund the cash consideration with $4.0 billion in debt financing, and has obtained commitments consisting of a $2.5 billion bridge loan commitment, a $750 million 3-year term loan facility commitment and a $750 million 5-year term loan facility commitment from JP Morgan Chase Bank, N.A., in each case subject to customary terms and conditions. The transaction is not subject to any financing condition. The Company has recorded $22.3 million of associated deferred debt financing costs, with $11.2 million recorded in prepaid expenses and other current assets and $11.1 million recorded in other non-current assets on the accompanying unaudited condensed consolidated balance sheet as of October 31, 2020. The transaction is expected to close in the second half of calendar 2021, pending approval by Inphi's and the Company's stockholders, as well as regulatory approval and satisfaction of other customary closing conditions. As a result of the transaction, the parent company will be domiciled in the United States upon closing of the transaction. For periods after closing, the combined company will be subject to taxation in the United States, which may adversely impact the Company's future effective tax rates and tax liabilities. A fee of up to $460 million may be payable by the Company or $300 million payable by Inphi upon termination of the transaction, as more fully described in the Merger Agreement. If the Merger Agreement is terminated due to failure to obtain stockholder approval, the party whose stockholders did not approve the transaction will be obligated to reimburse the other party up to $25 million for its merger related fees and costs. Use of Estimates

Recent Accounting Pronouncement

Recent Accounting Pronouncements	9 Months Ended
	Oct. 31, 2020
Accounting Changes and Error Corrections [Abstract]
Recent Accounting Pronouncements	Recent Accounting Pronouncements Accounting Pronouncements Recently Adopted In June 2016, the Financial Accounting Standards Board (“FASB”) issued a new standard requiring financial assets measured at amortized cost be presented at the net amount expected to be collected, through an allowance for credit losses that is deducted from the amortized cost basis. The standard eliminates the probable initial recognition threshold and reflects an entity’s current estimate of all expected credit losses. The measurement of expected credit losses is based on historical experience, current conditions, and reasonable and supportable forecasts that affect the collectability of the financial assets. The new standard was adopted by the Company on February 2, 2020 and did not have a material effect on the Company's consolidated financial statements. In August 2018, the FASB issued an accounting standards update to align the requirements for capitalizing implementation costs incurred in a software hosting arrangement that is a service contract and costs to develop or obtain internal-use software. The new standard was adopted by the Company on February 2, 2020 on a prospective basis and did not have a material effect on the Company's consolidated financial statements. In August 2018, the FASB issued an accounting standards update that modifies the disclosure requirements on fair value measurements. The new guidance adds, modifies and removes certain fair value measurement disclosure requirements. The new standard was adopted by the Company on February 2, 2020 and did not have a material effect on the Company's consolidated financial statements. In November 2018, the FASB issued an accounting standards update that clarifies when transactions between participants in a collaborative arrangement are within the scope of the new revenue recognition standard that the Company adopted at the beginning of fiscal 2019. The new standard was adopted by the Company on February 2, 2020 and did not have a material effect on the Company's consolidated financial statements. Accounting Pronouncements Not Yet Effective In December 2019, the FASB issued an accounting standards update that simplifies the accounting for income taxes by eliminating certain exceptions related to the approach for intraperiod tax allocation and modified the methodology for calculating income taxes in an interim period. It also clarifies and simplifies other aspects of the accounting for income taxes. The guidance is effective for the Company beginning in the first quarter of fiscal year 2022, with early adoption permitted. The Company does not expect the adoption of this guidance to have a material effect on its consolidated financial statements.

Business Combinations

Business Combinations	9 Months Ended
	Oct. 31, 2020
Business Combinations [Abstract]
Business Combinations	Business Combinations Avera On November 5, 2019, the Company completed the acquisition of Avera, the ASIC business of GlobalFoundries. Avera is a leading provider of ASIC semiconductor solutions. The Company acquired Avera to expand its ASIC design capabilities. Total purchase consideration consisted of cash consideration paid to GlobalFoundries of $593.5 million, net of working capital and other adjustments. An additional $90 million in cash would have been paid to acquire additional assets if certain conditions were satisfied. GlobalFoundries and the Company have agreed to terminate this requirement to acquire the additional assets. The purchase consideration allocation set forth herein is preliminary and may be revised as additional information becomes available during the measurement period of up to 12 months from the closing date of the acquisition. Any such revisions or changes may be material. The purchase price allocation is as follows (in thousands): Inventories $ 106,465 Prepaid expenses and other current assets 17,495 Property and equipment, net 25,677 Acquired intangible assets, net 379,000 Other non-current assets 6,870 Goodwill 129,392 Accrued liabilities (64,155) Deferred tax liabilities (6,594) Other non-current liabilities (650) Total merger consideration $ 593,500 The Company incurred total acquisition related costs of $5.7 million related to the acquisition. Aquantia Corp. On September 19, 2019, the Company completed the acquisition of Aquantia. Aquantia is a manufacturer of high speed transceivers which includes copper and optical physical layer products. The Company acquired Aquantia to further its position in automatic in-vehicle networking and strengthen its multi-gig ethernet PHY portfolio for enterprise infrastructure, data center and access application. The total consideration paid to acquire Aquantia, which consisted of cash and share based compensation awards was approximately $502.2 million. The purchase price allocation is as follows (in thousands): Previously Reported February 1, 2020 (Provisional) Measurement Period Adjustments October 31, 2020 Cash and short term investments $ 27,914 $ — $ 27,914 Inventory 33,900 — 33,900 Acquired intangible assets 193,000 — 193,000 Goodwill 227,594 (1,049) 226,545 Other non-current assets 35,123 1,049 36,172 Accrued liabilities (21,813) — (21,813) Other, net 6,471 — 6,471 Total merger consideration $ 502,189 $ — $ 502,189 The previously reported provisional amounts presented in the table above pertained to the preliminary purchase price allocation reported in the Company's Form 10-K for the year ended February 1, 2020. The measurement period adjustments were primarily related to changes in estimates related to finalizing Aquantia's U.S. tax return. The Company does not believe that the measurement period adjustments had a material impact on its consolidated statements of operations, balance sheets or cash flows in any periods reported. The Company incurred total acquisition related costs of $5.3 million related to the acquisition. Unaudited Supplemental Pro Forma Information The unaudited supplemental pro forma financial information presented below is for illustrative purposes only and is not necessarily indicative of the financial position or results of operations that would have been realized if the acquisitions had been completed on the date indicated, does not reflect synergies that might have been achieved, nor is it indicative of future operating results or financial position. The pro forma adjustments are based upon currently available information and certain assumptions the Company believes are reasonable under the circumstances. The following unaudited supplemental pro forma information presents the combined results of operations for each of the periods presented, as if Avera and Aquantia had been acquired as of the beginning of fiscal year 2019. The unaudited supplemental pro forma information includes adjustments to amortization and depreciation for acquired intangible assets and property and equipment, adjustments to share-based compensation expense, the purchase accounting effect on inventories acquired, interest expense, and transaction costs. The unaudited supplemental pro forma information presented below is for informational purposes only and is not necessarily indicative of our unaudited condensed consolidated results of operations of the combined business had the Avera and Aquantia acquisitions actually occurred at the beginning of fiscal year 2019 or of the results of our future operations of the combined business. The unaudited supplemental pro forma financial information for the periods presented is as follows (in thousands): Nine Months Ended November 2, Pro forma net revenue $ 2,293,879 Pro forma net loss $ (273,216)

Goodwill and Acquired Intangibl

Goodwill and Acquired Intangible Assets, Net	9 Months Ended
	Oct. 31, 2020
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Acquired Intangible Assets, Net	Goodwill and Acquired Intangible Assets, Net Goodwill Goodwill represents the excess of the purchase price over the fair value of net tangible and identifiable intangible assets acquired in a business combination. The carrying value of goodwill as of October 31, 2020 and February 1, 2020 is $5.3 billion. See “Note 3 - Business Combinations” for discussion of the acquisitions and changes to the carrying value of goodwill. Acquired Intangible Assets, Net In connection with the Cavium acquisition on July 6, 2018, the Aquantia acquisition on September 19, 2019 and the Avera acquisition on November 5, 2019, the Company recognized $3.3 billion of intangible assets. As of October 31, 2020 and February 1, 2020, net carrying amounts are as follows (in thousands, except for weighted-average remaining amortization period): October 31, 2020 Gross Carrying Amounts Accumulated Amortization Net Carrying Amounts Weighted-Average Remaining Amortization Period (Years) Developed technologies $ 2,441,000 $ (640,888) $ 1,800,112 5.78 Customer contracts and related relationships 643,000 (203,868) 439,132 5.87 Trade names 23,000 (12,862) 10,138 2.37 Total acquired amortizable intangible assets $ 3,107,000 $ (857,618) $ 2,249,382 5.78 IPR&D 131,000 — 131,000 n/a Total acquired intangible assets $ 3,238,000 $ (857,618) $ 2,380,382 The Company regularly analyzes the results of its business to determine whether events or circumstances exist that indicate whether the carrying amount of the intangible assets may not be recoverable. During the second quarter ended August 1, 2020, impairment charges of $50.3 million related to certain intangible assets acquired from Cavium were recognized as part of restructuring actions. The gross carrying amounts and the accumulated amortization of those impaired intangible assets were excluded from the table above. See “Note 5 - Restructuring” for additional information. February 1, 2020 Gross Carrying Amounts Accumulated Amortization Net Carrying Amounts Weighted-Average Remaining Amortization Period (Years) Developed technologies $ 2,511,000 $ (413,735) $ 2,097,265 6.41 Customer contracts and related relationships 643,000 (128,939) 514,061 6.61 Trade names 23,000 (8,726) 14,274 2.96 Total acquired amortizable intangible assets $ 3,177,000 $ (551,400) $ 2,625,600 6.43 IPR&D 139,000 — 139,000 n/a Total acquired intangible assets $ 3,316,000 $ (551,400) $ 2,764,600 The intangible assets are amortized on a straight-line basis over the estimated useful lives, except for certain Cavium customer contracts and related relationships, which are amortized using an accelerated method of amortization over the expected customer lives, which more closely align with the pattern of realization of economic benefits expected to be obtained. The IPR&D will be accounted for as an indefinite-lived intangible asset and will not be amortized until the underlying projects reach technological feasibility and commercial production at which point the IPR&D will be amortized over the estimated useful life. Useful lives for these IPR&D projects are expected to range between 3 to 10 years. In the event the IPR&D is abandoned, the related assets will be written off. Amortization expense for acquired intangible assets for the three and nine months ended October 31, 2020 was $109.4 million and $333.9 million, respectively. Amortization expense for acquired intangible assets for the three and nine months ended November 2, 2019 was $92.8 million and $253.5 million, respectively. The following table presents the estimated future amortization expense of acquired amortizable intangible assets as of October 31, 2020 (in thousands): Fiscal Year Amount Remainder of 2021 $ 109,433 2022 428,015 2023 414,937 2024 393,863 2025 354,012 Thereafter 549,122 $ 2,249,382

Restructuring

Restructuring	9 Months Ended
	Oct. 31, 2020
Restructuring and Related Activities [Abstract]
Restructuring	Restructuring The Company continuously evaluates its existing operations to increase operational efficiency, decrease costs and increase profitability. In November 2019, as part of the integration of the acquired Avera business, the Company initiated a restructuring plan intended to further achieve the aforementioned goals. The Company expects to complete these restructuring actions by the end of fiscal 2021. During the second quarter ended August 1, 2020, the Company made changes to the scope of its server processor product line in response to changes in the associated market. The Company transitioned its product offering from standard server processors to the broad server market to focus only on customized server processors for a few targeted customers. This change in strategy required the Company to assess whether the carrying value of the associated assets would be recoverable. As a result of the assessment, the Company determined the carrying amount of certain impacted assets were not recoverable, which resulted in recognition of $119.0 million of restructuring related charges associated with the server processor product during the second quarter ended August 1, 2020. The charges included $50.3 million in impairment of acquired intangibles, $36.0 million in purchased IP licenses and $32.7 million in equipment and inventory impairment and other related restructuring charges. The Company expects to complete these restructuring actions by the end of fiscal 2022. The following table provides a summary of restructuring related charges, including the impairments described above, as presented in the unaudited condensed consolidated statements of operations (in thousands): Three Months Ended Nine Months Ended October 31, November 2, October 31, November 2, Cost of goods sold $ — $ — $ 9,594 $ — Restructuring related charges 19,312 14,802 161,189 37,070 $ 19,312 $ 14,802 $ 170,783 $ 37,070 The following table presents details related to the restructuring related charges as presented in the unaudited condensed consolidated statements of operations (in thousands): Three Months Ended Nine Months Ended October 31, November 2, October 31, November 2, Severance and related costs $ 12,300 $ 6,874 $ 40,125 $ 15,501 Facilities and related costs 5,741 7,546 11,825 18,590 Other exit-related costs 1,651 535 119,858 3,991 19,692 14,955 171,808 38,082 Release of reserves: Severance (367) (12) (908) (12) Facilities and related costs (10) (141) (114) (873) Other exit-related costs (3) — (3) (127) $ 19,312 $ 14,802 $ 170,783 $ 37,070 The following table sets forth a reconciliation of the beginning and ending restructuring liability balances by each major type of cost associated with the restructuring charges (in thousands): Severance and Related Costs Facilities and Related Costs Other Exit-Related Costs Total Balance at February 1, 2020 $ 13,228 $ 653 $ 547 $ 14,428 Restructuring charges (1) 40,125 3,391 6,622 50,138 Release of reserves (367) (114) (3) (484) Net cash payments (35,321) (3,866) (3,310) (42,497) Exchange rate adjustment (13) — — (13) Balance at October 31, 2020 (1) 17,652 64 3,856 21,572 Less: non-current portion — 64 589 653 Current portion $ 17,652 $ — $ 3,267 $ 20,919 (1) Impairment charges of $112.1 million, recognized in the second quarter ended August 1, 2020, associated with the server processor product line were recorded directly to the unaudited condensed consolidated statement of operations and were not included in the above liabilities.

Revenue

Revenue	9 Months Ended
	Oct. 31, 2020
Revenue from Contract with Customer [Abstract]
Revenue	Revenue The majority of the Company's revenue is generated from sales of the Company’s products. The following table summarizes net revenue disaggregated by product group (in thousands, except percentages): Three Months Ended Nine Months Ended October 31, % of Total November 2, % of Total October 31, % of Total November 2, % of Total Net revenue by product group: Networking (1) $ 444,756 59 % $ 329,962 50 % $ 1,244,684 57 % $ 1,000,911 51 % Storage (2) 276,279 37 % 287,708 43 % 825,462 38 % 841,280 42 % Other (3) 29,108 4 % 44,800 7 % 100,935 5 % 139,299 7 % $ 750,143 $ 662,470 $ 2,171,081 $ 1,981,490 (1) Networking products are comprised primarily of Ethernet Solutions, Embedded Processors and Custom ASICs. (2) Storage products are comprised primarily of Storage Controllers and Fibre Channel Adapters. (3) Other products are comprised primarily of Printer Solutions. The following table summarizes net revenue disaggregated by primary geographical market based on destination of shipment (in thousands, except percentages): Three Months Ended Nine Months Ended October 31, % of Total November 2, % of Total October 31, % of Total November 2, % of Total Net revenue based on destination of shipment: China $ 324,927 43 % $ 258,028 39 % $ 908,255 42 % $ 790,473 40 % United States 73,751 10 % 61,772 9 % 241,814 11 % 190,357 10 % Malaysia 73,582 10 % 53,551 8 % 198,436 9 % 152,890 8 % Thailand 55,617 7 % 59,112 9 % 183,625 8 % 169,289 9 % Philippines 44,356 6 % 51,710 8 % 118,485 5 % 174,484 9 % Japan 32,811 4 % 41,149 6 % 104,676 5 % 121,239 6 % Other 145,099 20 % 137,148 21 % 415,790 20 % 382,758 18 % $ 750,143 $ 662,470 $ 2,171,081 $ 1,981,490 These destinations of shipment are not necessarily indicative of the geographic location of the Company's end customers or the country in which the Company's end customers sell devices containing the Company's products. For example, a substantial majority of the shipments made to China relate to sales to non-China based customers that have factories or contract manufacturing operations located within China. The following table summarizes net revenue disaggregated by customer type (in thousands, except percentages): Three Months Ended Nine Months Ended October 31, % of Total November 2, % of Total October 31, % of Total November 2, % of Total Net revenue by customer type: Direct customers $ 573,759 76 % $ 476,253 72 % $ 1,646,511 76 % $ 1,475,554 74 % Distributors 176,384 24 % 186,217 28 % 524,570 24 % 505,936 26 % $ 750,143 $ 662,470 $ 2,171,081 $ 1,981,490 Contract Liabilities Contract liabilities consist of the Company’s obligation to transfer goods or services to a customer for which the Company has received consideration or the amount is due from the customer. As of October 31, 2020, contract liability balances are comprised of variable consideration estimated based on a portfolio basis using the expected value methodology based on analysis of historical data, current economic conditions, and contractual terms. Variable consideration estimates consist of the estimated returns, price discounts, price protection, rebates, and stock rotation programs. As of the end of a reporting period, some of the performance obligations associated with contracts will have been unsatisfied or only partially satisfied. In accordance with the practical expedients available in the guidance, the Company does not disclose the value of unsatisfied performance obligations for contracts with an original expected duration of one year or less. Contract liabilities are included in accrued liabilities in the unaudited condensed consolidated balance sheets. The opening balance of contract liabilities at the beginning of the first quarter of fiscal year 2021 was $111.5 million. During the nine months ended October 31, 2020, contract liabilities increased by $617.7 million associated with variable consideration estimates, offset by $596.3 million decrease in such reserves primarily due to credit memos issued to customers. The ending balance of contract liabilities as of the third quarter of fiscal year 2021 was $132.9 million. The amount of revenue recognized during the nine months ended October 31, 2020 that was included in the contract liabilities balance at February 1, 2020 was not material. Sales Commissions The Company has elected to apply the practical expedient to expense commissions when incurred as the amortization period is typically one year or less. These costs are recorded in selling, general and administrative expenses in the unaudited condensed consolidated statements of operations.

Supplemental Financial Informat

Supplemental Financial Information	9 Months Ended
	Oct. 31, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Supplemental Financial Information	Supplemental Financial Information (in thousands) Consolidated Balance Sheets October 31, February 1, Inventories: Work-in-process $ 181,961 $ 216,496 Finished goods 86,435 106,484 Inventories $ 268,396 $ 322,980 October 31, February 1, Property and equipment, net: Machinery and equipment $ 677,843 $ 686,351 Land, buildings, and leasehold improvements 288,859 285,084 Computer software 101,955 100,613 Furniture and fixtures 27,152 24,582 1,095,809 1,096,630 Less: Accumulated depreciation and amortization (764,040) (739,538) Property and equipment, net $ 331,769 $ 357,092 October 31, February 1, Other non-current assets: Technology and other licenses $ 218,666 $ 277,634 Operating right-of-use assets 108,659 110,907 Prepaid ship and debit * 88,989 75,362 Other 53,788 32,947 Other non-current assets $ 470,102 $ 496,850 * Prepaid ship and debit of $89.0 million and $75.4 million as of October 31, 2020 and February 1, 2020, respectively, relate to certain prepaid distributor arrangements for ship and debit claims. October 31, February 1, Accrued liabilities: Contract liabilities $ 132,850 $ 111,486 Technology license obligations 81,182 71,623 Deferred non-recurring engineering credits 47,804 51,109 Lease liabilities-current 32,134 28,662 Accrued restructuring 20,919 14,302 Deferred revenue 19,466 5,647 Accrued interest 19,085 7,892 Other 53,546 55,918 Accrued liabilities $ 406,986 $ 346,639 October 31, February 1, Other non-current liabilities Lease liabilities-non current $ 111,760 $ 115,778 Technology license obligations 72,896 107,893 Deferred tax liabilities 37,645 31,233 Non-current income tax payable 26,263 37,983 Other 25,706 12,578 Other non-current liabilities $ 274,270 $ 305,465 Accumulated Other Comprehensive Income The changes in accumulated other comprehensive income by components for the current period are presented in the following table: Unrealized Gain Balance at February 1, 2020 $ — Other comprehensive income before reclassifications 1,214 Amounts reclassified from accumulated other comprehensive income (1,214) Net current-period other comprehensive income, net of tax — Balance at October 31, 2020 $ — Unrealized Gain Balance at February 2, 2019 $ — Other comprehensive income before reclassifications — Amounts reclassified from accumulated other comprehensive income 37 Net current-period other comprehensive income, net of tax 37 Balance at November 2, 2019 $ 37 Share Repurchase Program On November 17, 2016, the Company announced that its Board of Directors authorized a $1.0 billion share repurchase plan. The newly authorized stock repurchase program replaced in its entirety the prior $3.25 billion stock repurchase program. On October 16, 2018, the Company announced that its Board of Directors authorized a $700 million addition to the balance of its existing share repurchase program. As of October 31, 2020, there was $564.5 million remaining available for future share repurchases. The Company intends to effect share repurchases in accordance with the conditions of Rule 10b-18 under the Exchange Act, but may also make repurchases in the open market outside of Rule 10b-18 or in privately negotiated transactions. The share repurchase program will be subject to market conditions and other factors, and does not obligate the Company to repurchase any dollar amount or number of its common shares and the repurchase program may be extended, modified, suspended or discontinued at any time.

Fair Value Measurements

Fair Value Measurements	9 Months Ended
	Oct. 31, 2020
Fair Value Disclosures [Abstract]
Fair Value Measurements	Fair Value Measurements Fair value is an exit price representing the amount that would be received in the sale of an asset or paid to transfer a liability in an orderly transaction between market participants. As such, fair value is a market-based measurement that should be determined based on assumptions that market participants would use in pricing an asset or a liability. As a basis for considering such assumptions, the accounting guidance establishes a three-tier value hierarchy, which prioritizes the inputs used in the valuation methodologies in measuring fair value: Level 1—Observable inputs that reflect quoted prices for identical assets or liabilities in active markets. Level 2—Other inputs that are directly or indirectly observable in the marketplace. Level 3—Unobservable inputs that are supported by little or no market activity. The fair value hierarchy also requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value. The Company’s Level 1 assets include institutional money-market funds that are classified as cash equivalents and which are valued primarily using quoted market prices. The Company’s Level 2 assets include time deposits, as the market inputs used to value these instruments consist of market yields. In addition, the severance pay fund is classified as a Level 2 asset as the valuation inputs are based on quoted prices and market observable data of similar instruments. The tables below set forth, by level, the Company’s assets and liabilities that are measured at fair value on a recurring basis. The tables do not include assets and liabilities that are measured at historical cost or any basis other than fair value (in thousands): Fair Value Measurements at October 31, 2020 Level 1 Level 2 Level 3 Total Items measured at fair value on a recurring basis: Assets Cash equivalents: Time deposits $ — $ 132,456 $ — $ 132,456 Other non-current assets: Severance pay fund — 588 — 588 Total assets $ — $ 133,044 $ — $ 133,044 Fair Value Measurements at February 1, 2020 Level 1 Level 2 Level 3 Total Items measured at fair value on a recurring basis: Assets Cash equivalents: Money market funds $ 46,355 $ — $ — $ 46,355 Time deposits — 88,177 — 88,177 Other non-current assets: Severance pay fund — 693 — 693 Total assets $ 46,355 $ 88,870 $ — $ 135,225 Fair Value of Debt The Company classified the Term Loan, the 2023 Notes and 2028 Notes under Level 2 of the fair value measurement hierarchy. The carrying value of the Term Loan approximates its fair value as the Term Loan is carried at a market observable interest rate that resets periodically. The estimated aggregate fair value of the 2023 Notes and 2028 Notes was $1.1 billion at October 31, 2020 and at February 1, 2020, and were classified as Level 2 as there are quoted prices from less active markets for the notes.

Debt

Debt	9 Months Ended
	Oct. 31, 2020
Debt Disclosure [Abstract]
Debt	Debt In connection with the acquisition of Cavium, the Company executed debt agreements in June 2018 to obtain a $900.0 million term loan, a $500.0 million revolving credit facility and $1.0 billion of senior unsecured notes. Term Loan and Revolving Credit Facility On June 13, 2018, the Company entered into a credit agreement (“Credit Agreement”) with twelve lenders. The Credit Agreement provides for borrowings of: (i) up to $500.0 million in the form of a revolving line of credit ("Revolving Credit Facility") and (ii) $900.0 million in the form of a term loan (“Term Loan”). The proceeds of the Term Loan were used to fund a portion of the cash consideration for the Cavium acquisition, repay Cavium’s debt, and pay transaction expenses in connection with the Cavium acquisition. The proceeds of the Revolving Credit Facility are intended for general corporate purposes of the Company and its subsidiaries, which may include, among other things, the financing of acquisitions, the refinancing of other indebtedness and the payment of transaction expenses related to the foregoing. As of October 31, 2020, there was no outstanding balance related to the Revolving Credit Facility. Following is further detail of the terms of the various debt agreements. The Term Loan has a three year term which matures on July 6, 2021 and has a stated floating interest rate which equates to reserve-adjusted LIBOR + 137.5 bps. The effective interest rate for the Term Loan was 3.684% as of October 31, 2020. The Term Loan does not require any scheduled principal payments prior to final maturity but does permit the Company to make early principal payments without premium or penalty. During the three months ended October 31, 2020, the Company repaid $100.0 million of the principal outstanding and wrote off $0.3 million of associated unamortized debt issuance costs. The Revolving Credit Facility has a five year term and has a stated floating interest rate which equates to reserve-adjusted LIBOR + 150.0 bps. As of October 31, 2020, the full amount of the Revolving Credit Facility of $500.0 million was undrawn and will be available for draw down through June 13, 2023. An unused commitment fee is payable quarterly based on unused balances at a rate that is based on the ratings of the Company's senior unsecured long-term indebtedness. This rate was 0.175% at October 31, 2020. The Company currently carries debt that rely on the LIBOR as the benchmark rate, with the Term Loan maturing on July 6, 2021. LIBOR is expected to be phased out as a benchmark rate by the end of 2021. The Company expects its debt to continue to use LIBOR until the rate is no longer available or a relevant governmental authority makes a public statement that LIBOR will no longer be available after a certain date. To the extent LIBOR ceases to exist, the Company will need to amend its credit agreements that utilize LIBOR as a factor in determining the interest rate. Currently, there is not a firm timeframe for this change. This update currently has no foreseeable impact on the Company's unaudited condensed consolidated financial statements; however, it may have an effect in the future. The Credit Agreement requires that the Company and its subsidiaries comply, subject to certain exceptions, with covenants relating to customary matters such as creating or permitting certain liens, entering into sale and leaseback transactions, consolidating, merging, liquidating or dissolving, and entering into restrictive agreements. It also prohibits subsidiaries of the Company from incurring additional indebtedness, and requires the Company to comply with a leverage ratio financial covenant as of the end of any fiscal quarter. As of October 31, 2020, the Company was in compliance with all of its debt covenants. Senior Unsecured Notes On June 22, 2018, the Company completed a public offering of (i) $500.0 million aggregate principal amount of the Company's 4.200% Senior Notes due 2023 (the “2023 Notes”) and (ii) $500.0 million aggregate principal amount of the Company's 4.875% Senior Notes due 2028 (the “2028 Notes” and, together with the 2023 Notes, the “Senior Notes”). The 2023 Notes mature on June 22, 2023 and the 2028 Notes mature on June 22, 2028. The stated and effective interest rates for the 2023 Notes are 4.200% and 4.423%, respectively. The stated and effective interest rates for the 2028 Notes are 4.875% and 5.012%, respectively. The Company may redeem the Senior Notes, in whole or in part, at any time prior to their maturity at the redemption prices set forth in Senior Notes. In addition, upon the occurrence of a change of control repurchase event (which involves the occurrence of both a change of control and a ratings event involving the Senior Notes being rated below investment grade), the Company will be required to make an offer to repurchase the Senior Notes at a price equal to 101% of the principal amount of the notes, plus accrued and unpaid interest to, but excluding, the repurchase date. The indenture governing the Senior Notes also contains certain limited covenants restricting the Company’s ability to incur certain liens, enter into certain sale and leaseback transactions and merge or consolidate with any other entity or convey, transfer or lease all or substantially all of the Company’s properties or assets to another person, which, in each case, are subject to certain qualifications and exceptions. Summary of Borrowings and Outstanding Debt The following table summarizes the Company's outstanding debt at October 31, 2020 and February 1, 2020 (in thousands): October 31, February 1, Face Value Outstanding: Term Loan $ 350,000 $ 450,000 2023 Notes 500,000 500,000 2028 Notes 500,000 500,000 Total borrowings $ 1,350,000 $ 1,450,000 Less: Unamortized debt discount and issuance cost (8,195) (10,976) Net carrying amount of debt $ 1,341,805 $ 1,439,024 Less: Current portion (1) 349,004 — Non-current portion $ 992,801 $ 1,439,024 (1) As of October 31, 2020, the current portion of outstanding debt includes the Term Loan, which is due within twelve months. The Company intends to repay the amount with operating cash flow. During the three and nine months ended October 31, 2020, the Company recognized $14.1 million and $43.6 million of interest expense in its unaudited condensed consolidated statements of operations related to interest, amortization of debt issuance costs and accretion of discount associated with the outstanding Term Loan and Senior Notes, respectively. During the three and nine months ended November 2, 2019, the Company recognized $20.6 million and $59.8 million of interest expense in its unaudited condensed consolidated statements of operations related to interest, amortization of debt issuance costs and accretion of discount associated with the outstanding Term Loan and Senior Notes, respectively. As of October 31, 2020, the aggregate future contractual maturities of the Company's outstanding debt, at face value, were as follows (in thousands): Fiscal Year Amount Remainder of 2021 $ — 2022 350,000 2023 — 2024 500,000 2025 — Thereafter 500,000 Total $ 1,350,000

Commitments and Contingencies

Commitments and Contingencies	9 Months Ended
	Oct. 31, 2020
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies Purchase Commitments Under the Company’s manufacturing relationships with its foundry partners, cancellation of outstanding purchase orders is allowed but requires payment of all costs and expenses incurred through the date of cancellation. As of October 31, 2020, these foundries had incurred approximately $237.8 million of manufacturing costs and expenses relating to the Company’s outstanding purchase orders. Contingencies and Legal Proceedings The Company currently is, and may from time to time become, a party to claims, lawsuits, governmental inquiries, inspections or investigations and other legal proceedings (collectively, “Legal Matters”) arising in the course of its business. Such Legal Matters, even if not meritorious, could result in the expenditure of significant financial and managerial resources. The Company is currently unable to predict the final outcome of its pending Legal Matters and therefore cannot determine the likelihood of loss or estimate a range of possible loss, except with respect to amounts where it has determined a loss is both probable and estimable and has made an accrual. The Company evaluates, at least on a quarterly basis, developments in its Legal Matters that could affect the amount of any accrual, as well as any developments that would result in a loss contingency to become both probable and reasonably estimable. The ultimate outcome of any Legal Matter involves judgments, estimates and inherent uncertainties. An unfavorable outcome in a Legal Matter, particularly in a patent dispute, could require the Company to pay damages or could prevent the Company from selling some of its products in certain jurisdictions. While the Company cannot predict with certainty the results of the Legal Matters in which it is currently involved, the Company does not expect that the ultimate costs to resolve these Legal Matters will individually or in the aggregate have a material adverse effect on its financial condition, however, there can be no assurance that the current or any future Legal Matters will be resolved in a manner that is not adverse to the Company’s business, financial condition, results of operations or cash flows. Indemnities, Commitments and Guarantees During its normal course of business, the Company has made certain indemnities, commitments and guarantees under which it may be required to make payments in relation to certain transactions. These indemnities may include indemnities for general commercial obligations, indemnities to various lessors in connection with facility leases for certain claims arising from such facility or lease, and indemnities to directors and officers of the Company to the maximum extent permitted under the laws of Bermuda. In addition, the Company has contractual commitments to various customers, which could require the Company to incur costs to repair an epidemic defect with respect to its products outside of the normal warranty period if such defect were to occur. The duration of these indemnities, commitments and guarantees varies, and in certain cases, is indefinite. Some of these indemnities, commitments and guarantees do not provide for any limitation of the maximum potential future payments that the Company could be obligated to make. In general, the Company does not record any liability for these indemnities, commitments and guarantees in the accompanying unaudited condensed 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 and estimable. Intellectual Property Indemnification In addition to the above indemnities, the Company has agreed to indemnify certain customers for claims made against the Company’s products where such claims allege infringement of third-party intellectual property rights, including, but not limited to, patents, registered trademarks, and/or copyrights. Under the aforementioned indemnification clauses, the Company may be obligated to defend the customer and pay for the damages awarded against the customer as well as the attorneys’ fees and costs under an infringement claim. The Company’s indemnification obligations generally do not expire after termination or expiration of the agreement containing the indemnification obligation. Generally, there are limits on and exceptions to the Company’s potential liability for indemnification. Historically the Company has not made significant payments under these indemnification obligations and 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.

Income Tax

Income Tax	9 Months Ended
	Oct. 31, 2020
Income Tax Disclosure [Abstract]
Income Tax	Income Tax The Company’s tax provision for interim periods is determined using an estimate of its annual effective tax rate, adjusted for discrete items, if any, that arise during the period. Each quarter, the Company updates its estimate of the annual effective tax rate, and if the estimated annual effective tax rate changes, the Company makes a cumulative adjustment in such period. The Company’s quarterly tax provision, and estimate of its annual effective tax rate, is subject to variation due to several factors, including variability in accurately predicting our pre-tax income or loss and the mix of jurisdictions to which they relate, intercompany transactions, changes in tax laws, the applicability of special tax regimes, changes in how we do business, and acquisitions, as well as the integration of such acquisitions. The Company’s estimated effective tax rate for the year differs from the U.S. statutory rate of 21% primarily due to a substantial portion of its earnings being taxed at rates lower than the U.S. statutory rate. The Company's negative effective tax rate is the result of anticipated annual income tax expense attributed to certain jurisdictions which have pretax income. The Company's effective tax rate was adversely affected by pre-tax losses in certain non-U.S. tax jurisdictions that are benefited at tax rates that are lower than 21%. These losses significantly reduce the Company's pre-tax income without a corresponding reduction in its tax expense, and can therefore increase its effective tax rate in periods with pre-tax income, or cause a negative effective tax rate in periods where there is an income tax expense and a pre-tax loss. The Coronavirus Aid, Relief, and Economic Security (“CARES”) Act was enacted into US federal law on March 27, 2020. The CARES Act provides numerous tax provisions and other stimulus measures, including temporary changes regarding the prior and future utilization of net operating losses, temporary changes to the prior and future limitations on interest deductions, and technical corrections from prior tax legislation for tax depreciation of certain qualified improvement property. The Company evaluated the provisions of the CARES Act and does not anticipate any material impact on its financial statements. The tax effects of other related foreign government assistance enacted into law this period are also not material to the Company this period. The income tax benefit of $1.6 million for the three months ended October 31, 2020 includes a current tax benefit of $1.9 million primarily as a result of losses incurred on a year to date basis. The income tax benefit of $5.5 million for the nine months ended October 31, 2020 includes a tax benefit from a net reduction in unrecognized tax benefits of $15.0 million and a tax benefit attributable to the Company's asset impairment of $10.8 million, offset by $17.4 million of current tax expense. 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, it is reasonably possible that uncertain tax positions may decrease by as much as $5.3 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 the Company’s tax 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 or financial position at this time. The Company operates under tax incentives in certain countries that may be extended and/or renewed if certain additional requirements are satisfied. The tax incentives are conditional upon meeting certain employment and investment thresholds. There were no cash tax benefits as a result of these tax incentives on foreign taxes for the three and nine months ended October 31, 2020, but foreign taxes were decreased by $1.0 million and $2.7 million for the three and nine months ended November 2, 2019, respectively. The benefit of the tax incentives on net income per share was less than $0.01 per share for the three and nine months ended November 2, 2019. The Company’s principal source of liquidity as of October 31, 2020 consisted of approximately $832.0 million of cash and cash equivalents, of which approximately $694.1 million was held by subsidiaries outside of Bermuda. The Company has not recognized a deferred tax liability on $280.9 million of these assets as those amounts are deemed to be indefinitely reinvested. The Company plans to use such amounts to fund various activities outside of Bermuda, including working capital requirements, capital expenditures for expansion, funding of future acquisitions or other financing activities. On October 29, 2020, the Company entered into a merger agreement with Inphi Corporation. As a result of this transaction, upon closing, the parent company will be domiciled in the United States and not Bermuda. Therefore, for periods after closing, the combined group will be subject to taxation in the United States, which may adversely impact future effective tax rates and tax liabilities.

Net Loss Per Share

Net Loss Per Share	9 Months Ended
	Oct. 31, 2020
Earnings Per Share [Abstract]
Net Loss Per Share	Net Loss Per Share The Company reports both basic net loss per share, which is based on the weighted-average number of common shares outstanding during the period, and diluted net loss per share, which is based on the weighted-average number of common shares outstanding and potentially dilutive shares outstanding during the period. The computations of basic and diluted net loss per share are presented in the following table (in thousands, except per share amounts): Three Months Ended Nine Months Ended October 31, November 2, October 31, November 2, Numerator: Net loss $ (22,908) $ (82,501) $ (293,834) $ (188,282) Denominator: Weighted-average shares — basic 670,487 668,178 667,186 667,184 Effect of dilutive securities: Share-based awards — — — — Weighted-average shares — diluted 670,487 668,178 667,186 667,184 Net loss per share: Basic $ (0.03) $ (0.12) $ (0.44) $ (0.28) Diluted $ (0.03) $ (0.12) $ (0.44) $ (0.28) Potential dilutive securities include dilutive common shares from share-based awards attributable to the assumed exercise of stock options, restricted stock units and employee stock purchase plan shares using the treasury stock method. Under the treasury stock method, potential common shares outstanding are not included in the computation of diluted net income per share if their effect is anti-dilutive. Anti-dilutive potential shares are presented in the following table (in thousands): Three Months Ended Nine Months Ended October 31, November 2, October 31, November 2, Weighted-average shares outstanding: Share-based awards 12,456 13,000 10,401 13,380

Basis of Presentation (Policies

Basis of Presentation (Policies)	9 Months Ended
	Oct. 31, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	The unaudited condensed consolidated financial statements of Marvell Technology Group Ltd., a Bermuda exempted company, and its wholly owned subsidiaries (the “Company”), as of and for the three and nine months ended October 31, 2020, have been prepared as required by the U.S. Securities and Exchange Commission (the “SEC”). Certain information and footnote disclosures normally included in financial statements prepared in accordance with U.S. generally accepted accounting principles (“U.S. GAAP”) have been condensed or omitted as permitted by the SEC.
Fiscal Period	The Company’s fiscal year is the 52- or 53-week period ending on the Saturday closest to January 31. Accordingly, every fifth or sixth fiscal year will have a 53-week period. The additional week in a 53-week year is added to the fourth quarter, making such quarter consist of 14 weeks. Fiscal 2020 had a 52-week year. Fiscal 2021 is a 52-week year. On October 29, 2020, the Company entered into a merger agreement (the “Merger Agreement”) with Inphi Corporation (“Inphi”), whereby the Company will pay Inphi's stockholders $66 per share in cash and 2.323 common shares for each Inphi share, which represents purchase consideration of approximately $10 billion. The Company intends to fund the cash consideration with $4.0 billion in debt financing, and has obtained commitments consisting of a $2.5 billion bridge loan commitment, a $750 million 3-year term loan facility commitment and a $750 million 5-year term loan facility commitment from JP Morgan Chase Bank, N.A., in each case subject to customary terms and conditions. The transaction is not subject to any financing condition. The Company has recorded $22.3 million of associated deferred debt financing costs, with $11.2 million recorded in prepaid expenses and other current assets and $11.1 million recorded in other non-current assets on the accompanying unaudited condensed consolidated balance sheet as of October 31, 2020. The transaction is expected to close in the second half of calendar 2021, pending approval by Inphi's and the Company's stockholders, as well as regulatory approval and satisfaction of other customary closing conditions. As a result of the transaction, the parent company will be domiciled in the United States upon closing of the transaction. For periods after closing, the combined company will be subject to taxation in the United States, which may adversely impact the Company's future effective tax rates and tax liabilities. A fee of up to $460 million may be payable by the Company or $300 million payable by Inphi upon termination of the transaction, as more fully described in the Merger Agreement. If the Merger Agreement is terminated due to failure to obtain stockholder approval, the party whose stockholders did not approve the transaction will be obligated to reimburse the other party up to $25 million for its merger related fees and costs.
Use of Estimates	The preparation of condensed consolidated financial statements in conformity with U.S. GAAP requires management to make estimates, judgments and assumptions that affect the reported amounts of assets, liabilities, revenues and expenses, and related disclosure of contingent liabilities. On an ongoing basis, the Company evaluates its estimates, including those related to revenue recognition, provisions for sales returns and allowances, inventory excess and obsolescence, goodwill and other intangible assets, restructuring, income taxes, litigation and other contingencies. Actual results could differ from these estimates and such differences could affect the results of operations reported in future periods. In the current macroeconomic environment affected by COVID-19, these estimates require increased judgment and carry a higher degree of variability and volatility. As events continue to evolve and additional information becomes available, these estimates may change materially in future periods.
Accounting Pronouncements	Accounting Pronouncements Recently Adopted In June 2016, the Financial Accounting Standards Board (“FASB”) issued a new standard requiring financial assets measured at amortized cost be presented at the net amount expected to be collected, through an allowance for credit losses that is deducted from the amortized cost basis. The standard eliminates the probable initial recognition threshold and reflects an entity’s current estimate of all expected credit losses. The measurement of expected credit losses is based on historical experience, current conditions, and reasonable and supportable forecasts that affect the collectability of the financial assets. The new standard was adopted by the Company on February 2, 2020 and did not have a material effect on the Company's consolidated financial statements. In August 2018, the FASB issued an accounting standards update to align the requirements for capitalizing implementation costs incurred in a software hosting arrangement that is a service contract and costs to develop or obtain internal-use software. The new standard was adopted by the Company on February 2, 2020 on a prospective basis and did not have a material effect on the Company's consolidated financial statements. In August 2018, the FASB issued an accounting standards update that modifies the disclosure requirements on fair value measurements. The new guidance adds, modifies and removes certain fair value measurement disclosure requirements. The new standard was adopted by the Company on February 2, 2020 and did not have a material effect on the Company's consolidated financial statements. In November 2018, the FASB issued an accounting standards update that clarifies when transactions between participants in a collaborative arrangement are within the scope of the new revenue recognition standard that the Company adopted at the beginning of fiscal 2019. The new standard was adopted by the Company on February 2, 2020 and did not have a material effect on the Company's consolidated financial statements. Accounting Pronouncements Not Yet Effective In December 2019, the FASB issued an accounting standards update that simplifies the accounting for income taxes by eliminating certain exceptions related to the approach for intraperiod tax allocation and modified the methodology for calculating income taxes in an interim period. It also clarifies and simplifies other aspects of the accounting for income taxes. The guidance is effective for the Company beginning in the first quarter of fiscal year 2022, with early adoption permitted. The Company does not expect the adoption of this guidance to have a material effect on its consolidated financial statements.

Business Combinations (Tables)

Business Combinations (Tables)	9 Months Ended
	Oct. 31, 2020
Business Combinations [Abstract]
Purchase Price Allocation	The purchase price allocation is as follows (in thousands): Inventories $ 106,465 Prepaid expenses and other current assets 17,495 Property and equipment, net 25,677 Acquired intangible assets, net 379,000 Other non-current assets 6,870 Goodwill 129,392 Accrued liabilities (64,155) Deferred tax liabilities (6,594) Other non-current liabilities (650) Total merger consideration $ 593,500 The purchase price allocation is as follows (in thousands): Previously Reported February 1, 2020 (Provisional) Measurement Period Adjustments October 31, 2020 Cash and short term investments $ 27,914 $ — $ 27,914 Inventory 33,900 — 33,900 Acquired intangible assets 193,000 — 193,000 Goodwill 227,594 (1,049) 226,545 Other non-current assets 35,123 1,049 36,172 Accrued liabilities (21,813) — (21,813) Other, net 6,471 — 6,471 Total merger consideration $ 502,189 $ — $ 502,189
Supplemental Pro Forma Financial Information	The unaudited supplemental pro forma financial information for the periods presented is as follows (in thousands): Nine Months Ended November 2, Pro forma net revenue $ 2,293,879 Pro forma net loss $ (273,216)

Goodwill and Acquired Intangi_2

Goodwill and Acquired Intangible Assets, Net (Tables)	9 Months Ended
	Oct. 31, 2020
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Finite-Lived Intangible Assets by Major Class	As of October 31, 2020 and February 1, 2020, net carrying amounts are as follows (in thousands, except for weighted-average remaining amortization period): October 31, 2020 Gross Carrying Amounts Accumulated Amortization Net Carrying Amounts Weighted-Average Remaining Amortization Period (Years) Developed technologies $ 2,441,000 $ (640,888) $ 1,800,112 5.78 Customer contracts and related relationships 643,000 (203,868) 439,132 5.87 Trade names 23,000 (12,862) 10,138 2.37 Total acquired amortizable intangible assets $ 3,107,000 $ (857,618) $ 2,249,382 5.78 IPR&D 131,000 — 131,000 n/a Total acquired intangible assets $ 3,238,000 $ (857,618) $ 2,380,382 The Company regularly analyzes the results of its business to determine whether events or circumstances exist that indicate whether the carrying amount of the intangible assets may not be recoverable. During the second quarter ended August 1, 2020, impairment charges of $50.3 million related to certain intangible assets acquired from Cavium were recognized as part of restructuring actions. The gross carrying amounts and the accumulated amortization of those impaired intangible assets were excluded from the table above. See “Note 5 - Restructuring” for additional information. February 1, 2020 Gross Carrying Amounts Accumulated Amortization Net Carrying Amounts Weighted-Average Remaining Amortization Period (Years) Developed technologies $ 2,511,000 $ (413,735) $ 2,097,265 6.41 Customer contracts and related relationships 643,000 (128,939) 514,061 6.61 Trade names 23,000 (8,726) 14,274 2.96 Total acquired amortizable intangible assets $ 3,177,000 $ (551,400) $ 2,625,600 6.43 IPR&D 139,000 — 139,000 n/a Total acquired intangible assets $ 3,316,000 $ (551,400) $ 2,764,600
Schedule of Indefinite-Lived Intangible Assets	October 31, 2020 Gross Carrying Amounts Accumulated Amortization Net Carrying Amounts Weighted-Average Remaining Amortization Period (Years) Developed technologies $ 2,441,000 $ (640,888) $ 1,800,112 5.78 Customer contracts and related relationships 643,000 (203,868) 439,132 5.87 Trade names 23,000 (12,862) 10,138 2.37 Total acquired amortizable intangible assets $ 3,107,000 $ (857,618) $ 2,249,382 5.78 IPR&D 131,000 — 131,000 n/a Total acquired intangible assets $ 3,238,000 $ (857,618) $ 2,380,382 The Company regularly analyzes the results of its business to determine whether events or circumstances exist that indicate whether the carrying amount of the intangible assets may not be recoverable. During the second quarter ended August 1, 2020, impairment charges of $50.3 million related to certain intangible assets acquired from Cavium were recognized as part of restructuring actions. The gross carrying amounts and the accumulated amortization of those impaired intangible assets were excluded from the table above. See “Note 5 - Restructuring” for additional information. February 1, 2020 Gross Carrying Amounts Accumulated Amortization Net Carrying Amounts Weighted-Average Remaining Amortization Period (Years) Developed technologies $ 2,511,000 $ (413,735) $ 2,097,265 6.41 Customer contracts and related relationships 643,000 (128,939) 514,061 6.61 Trade names 23,000 (8,726) 14,274 2.96 Total acquired amortizable intangible assets $ 3,177,000 $ (551,400) $ 2,625,600 6.43 IPR&D 139,000 — 139,000 n/a Total acquired intangible assets $ 3,316,000 $ (551,400) $ 2,764,600
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense	The following table presents the estimated future amortization expense of acquired amortizable intangible assets as of October 31, 2020 (in thousands): Fiscal Year Amount Remainder of 2021 $ 109,433 2022 428,015 2023 414,937 2024 393,863 2025 354,012 Thereafter 549,122 $ 2,249,382

Restructuring (Tables)

Restructuring (Tables)	9 Months Ended
	Oct. 31, 2020
Restructuring and Related Activities [Abstract]
Summary of Restructuring Related Charges in the Statements of Operations	The following table provides a summary of restructuring related charges, including the impairments described above, as presented in the unaudited condensed consolidated statements of operations (in thousands): Three Months Ended Nine Months Ended October 31, November 2, October 31, November 2, Cost of goods sold $ — $ — $ 9,594 $ — Restructuring related charges 19,312 14,802 161,189 37,070 $ 19,312 $ 14,802 $ 170,783 $ 37,070 The following table presents details related to the restructuring related charges as presented in the unaudited condensed consolidated statements of operations (in thousands): Three Months Ended Nine Months Ended October 31, November 2, October 31, November 2, Severance and related costs $ 12,300 $ 6,874 $ 40,125 $ 15,501 Facilities and related costs 5,741 7,546 11,825 18,590 Other exit-related costs 1,651 535 119,858 3,991 19,692 14,955 171,808 38,082 Release of reserves: Severance (367) (12) (908) (12) Facilities and related costs (10) (141) (114) (873) Other exit-related costs (3) — (3) (127) $ 19,312 $ 14,802 $ 170,783 $ 37,070
Schedule of Restructuring Reserve by Type of Cost	The following table sets forth a reconciliation of the beginning and ending restructuring liability balances by each major type of cost associated with the restructuring charges (in thousands): Severance and Related Costs Facilities and Related Costs Other Exit-Related Costs Total Balance at February 1, 2020 $ 13,228 $ 653 $ 547 $ 14,428 Restructuring charges (1) 40,125 3,391 6,622 50,138 Release of reserves (367) (114) (3) (484) Net cash payments (35,321) (3,866) (3,310) (42,497) Exchange rate adjustment (13) — — (13) Balance at October 31, 2020 (1) 17,652 64 3,856 21,572 Less: non-current portion — 64 589 653 Current portion $ 17,652 $ — $ 3,267 $ 20,919

Revenue (Tables)

Revenue (Tables)	9 Months Ended
	Oct. 31, 2020
Revenue from Contract with Customer [Abstract]
Disaggregation of Revenue	The following table summarizes net revenue disaggregated by product group (in thousands, except percentages): Three Months Ended Nine Months Ended October 31, % of Total November 2, % of Total October 31, % of Total November 2, % of Total Net revenue by product group: Networking (1) $ 444,756 59 % $ 329,962 50 % $ 1,244,684 57 % $ 1,000,911 51 % Storage (2) 276,279 37 % 287,708 43 % 825,462 38 % 841,280 42 % Other (3) 29,108 4 % 44,800 7 % 100,935 5 % 139,299 7 % $ 750,143 $ 662,470 $ 2,171,081 $ 1,981,490 (1) Networking products are comprised primarily of Ethernet Solutions, Embedded Processors and Custom ASICs. (2) Storage products are comprised primarily of Storage Controllers and Fibre Channel Adapters. (3) Other products are comprised primarily of Printer Solutions. The following table summarizes net revenue disaggregated by primary geographical market based on destination of shipment (in thousands, except percentages): Three Months Ended Nine Months Ended October 31, % of Total November 2, % of Total October 31, % of Total November 2, % of Total Net revenue based on destination of shipment: China $ 324,927 43 % $ 258,028 39 % $ 908,255 42 % $ 790,473 40 % United States 73,751 10 % 61,772 9 % 241,814 11 % 190,357 10 % Malaysia 73,582 10 % 53,551 8 % 198,436 9 % 152,890 8 % Thailand 55,617 7 % 59,112 9 % 183,625 8 % 169,289 9 % Philippines 44,356 6 % 51,710 8 % 118,485 5 % 174,484 9 % Japan 32,811 4 % 41,149 6 % 104,676 5 % 121,239 6 % Other 145,099 20 % 137,148 21 % 415,790 20 % 382,758 18 % $ 750,143 $ 662,470 $ 2,171,081 $ 1,981,490 These destinations of shipment are not necessarily indicative of the geographic location of the Company's end customers or the country in which the Company's end customers sell devices containing the Company's products. For example, a substantial majority of the shipments made to China relate to sales to non-China based customers that have factories or contract manufacturing operations located within China. The following table summarizes net revenue disaggregated by customer type (in thousands, except percentages): Three Months Ended Nine Months Ended October 31, % of Total November 2, % of Total October 31, % of Total November 2, % of Total Net revenue by customer type: Direct customers $ 573,759 76 % $ 476,253 72 % $ 1,646,511 76 % $ 1,475,554 74 % Distributors 176,384 24 % 186,217 28 % 524,570 24 % 505,936 26 % $ 750,143 $ 662,470 $ 2,171,081 $ 1,981,490

Supplemental Financial Inform_2

Supplemental Financial Information (Tables)	9 Months Ended
	Oct. 31, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Schedule of Inventories	October 31, February 1, Inventories: Work-in-process $ 181,961 $ 216,496 Finished goods 86,435 106,484 Inventories $ 268,396 $ 322,980
Schedule of Property and Equipment, Net	October 31, February 1, Property and equipment, net: Machinery and equipment $ 677,843 $ 686,351 Land, buildings, and leasehold improvements 288,859 285,084 Computer software 101,955 100,613 Furniture and fixtures 27,152 24,582 1,095,809 1,096,630 Less: Accumulated depreciation and amortization (764,040) (739,538) Property and equipment, net $ 331,769 $ 357,092
Schedule of Other Non-current Assets	October 31, February 1, Other non-current assets: Technology and other licenses $ 218,666 $ 277,634 Operating right-of-use assets 108,659 110,907 Prepaid ship and debit * 88,989 75,362 Other 53,788 32,947 Other non-current assets $ 470,102 $ 496,850 * Prepaid ship and debit of $89.0 million and $75.4 million as of October 31, 2020 and February 1, 2020, respectively, relate to certain prepaid distributor arrangements for ship and debit claims.
Schedule of Current Accrued Liabilities	October 31, February 1, Accrued liabilities: Contract liabilities $ 132,850 $ 111,486 Technology license obligations 81,182 71,623 Deferred non-recurring engineering credits 47,804 51,109 Lease liabilities-current 32,134 28,662 Accrued restructuring 20,919 14,302 Deferred revenue 19,466 5,647 Accrued interest 19,085 7,892 Other 53,546 55,918 Accrued liabilities $ 406,986 $ 346,639
Schedule of Other Non-current Liabilities	October 31, February 1, Other non-current liabilities Lease liabilities-non current $ 111,760 $ 115,778 Technology license obligations 72,896 107,893 Deferred tax liabilities 37,645 31,233 Non-current income tax payable 26,263 37,983 Other 25,706 12,578 Other non-current liabilities $ 274,270 $ 305,465
Changes in Accumulated Other Comprehensive Income (Loss) by Components	The changes in accumulated other comprehensive income by components for the current period are presented in the following table: Unrealized Gain Balance at February 1, 2020 $ — Other comprehensive income before reclassifications 1,214 Amounts reclassified from accumulated other comprehensive income (1,214) Net current-period other comprehensive income, net of tax — Balance at October 31, 2020 $ — Unrealized Gain Balance at February 2, 2019 $ — Other comprehensive income before reclassifications — Amounts reclassified from accumulated other comprehensive income 37 Net current-period other comprehensive income, net of tax 37 Balance at November 2, 2019 $ 37

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	9 Months Ended
	Oct. 31, 2020
Fair Value Disclosures [Abstract]
Fair Value, Assets and Liabilities Measured on Recurring Basis	The tables below set forth, by level, the Company’s assets and liabilities that are measured at fair value on a recurring basis. The tables do not include assets and liabilities that are measured at historical cost or any basis other than fair value (in thousands): Fair Value Measurements at October 31, 2020 Level 1 Level 2 Level 3 Total Items measured at fair value on a recurring basis: Assets Cash equivalents: Time deposits $ — $ 132,456 $ — $ 132,456 Other non-current assets: Severance pay fund — 588 — 588 Total assets $ — $ 133,044 $ — $ 133,044 Fair Value Measurements at February 1, 2020 Level 1 Level 2 Level 3 Total Items measured at fair value on a recurring basis: Assets Cash equivalents: Money market funds $ 46,355 $ — $ — $ 46,355 Time deposits — 88,177 — 88,177 Other non-current assets: Severance pay fund — 693 — 693 Total assets $ 46,355 $ 88,870 $ — $ 135,225

Debt (Tables)

Debt (Tables)	9 Months Ended
	Oct. 31, 2020
Debt Disclosure [Abstract]
Summary of Outstanding Debt	The following table summarizes the Company's outstanding debt at October 31, 2020 and February 1, 2020 (in thousands): October 31, February 1, Face Value Outstanding: Term Loan $ 350,000 $ 450,000 2023 Notes 500,000 500,000 2028 Notes 500,000 500,000 Total borrowings $ 1,350,000 $ 1,450,000 Less: Unamortized debt discount and issuance cost (8,195) (10,976) Net carrying amount of debt $ 1,341,805 $ 1,439,024 Less: Current portion (1) 349,004 — Non-current portion $ 992,801 $ 1,439,024
Aggregate Future Contractual Maturities of Debt	As of October 31, 2020, the aggregate future contractual maturities of the Company's outstanding debt, at face value, were as follows (in thousands): Fiscal Year Amount Remainder of 2021 $ — 2022 350,000 2023 — 2024 500,000 2025 — Thereafter 500,000 Total $ 1,350,000

Net Loss Per Share (Tables)

Net Loss Per Share (Tables)	9 Months Ended
	Oct. 31, 2020
Earnings Per Share [Abstract]
Schedule of Earnings Per Share, Basic and Diluted	The computations of basic and diluted net loss per share are presented in the following table (in thousands, except per share amounts): Three Months Ended Nine Months Ended October 31, November 2, October 31, November 2, Numerator: Net loss $ (22,908) $ (82,501) $ (293,834) $ (188,282) Denominator: Weighted-average shares — basic 670,487 668,178 667,186 667,184 Effect of dilutive securities: Share-based awards — — — — Weighted-average shares — diluted 670,487 668,178 667,186 667,184 Net loss per share: Basic $ (0.03) $ (0.12) $ (0.44) $ (0.28) Diluted $ (0.03) $ (0.12) $ (0.44) $ (0.28)
Schedule of Anti-dilutive Potential Shares	Anti-dilutive potential shares are presented in the following table (in thousands): Three Months Ended Nine Months Ended October 31, November 2, October 31, November 2, Weighted-average shares outstanding: Share-based awards 12,456 13,000 10,401 13,380

Basis of Presentation - Busines

Basis of Presentation - Business Combination (Details)	Oct. 29, 2020USD ($)$ / shares	Oct. 31, 2020USD ($)	Feb. 01, 2020USD ($)
Business Acquisition [Line Items]
Deferred debt financing costs		$ 8,195,000	$ 10,976,000
Inphi
Business Acquisition [Line Items]
Share price (in dollars per share) | $ / shares	$ 66
Number of common shares issued per acquiree share (in shares)	2.323
Consideration transferred	$ 10,000,000,000
Inphi | Maximum
Business Acquisition [Line Items]
Termination fee	460,000,000
Termination fee receivable	300,000,000
Shareholder approval, termination fee	25,000,000
Inphi | Secured Debt | Prepaid Expenses and Other Current Assets
Business Acquisition [Line Items]
Deferred debt financing costs	11,200,000
Inphi | Secured Debt | Acquisition Financing
Business Acquisition [Line Items]
Aggregate principal amount	4,000,000,000
Deferred debt financing costs	22,300,000
Inphi | Secured Debt | Acquisition Financing | Other Noncurrent Assets
Business Acquisition [Line Items]
Deferred debt financing costs	11,100,000
Inphi | Secured Debt | Bridge Loan
Business Acquisition [Line Items]
Aggregate principal amount	2,500,000,000
Inphi | Secured Debt | Three Year Term Loan Facility
Business Acquisition [Line Items]
Aggregate principal amount	$ 750,000,000
Debt term	3 years
Inphi | Secured Debt | Five Year Term Loan Facility
Business Acquisition [Line Items]
Aggregate principal amount	$ 750,000,000
Debt term	5 years

Business Combinations - Additio

Business Combinations - Additional Information (Details) - USD ($) $ in Millions	Nov. 05, 2019	Sep. 19, 2019
Avera
Business Acquisition [Line Items]
Cash consideration	$ 593.5
Contingent consideration	90
Acquisition related costs	$ 5.7
Aquantia
Business Acquisition [Line Items]
Acquisition related costs		$ 5.3
Total merger consideration		$ 502.2

Business Combinations - Purchas

Business Combinations - Purchase Price Allocation (Details) - USD ($) $ in Thousands	9 Months Ended
	Oct. 30, 2020	Oct. 31, 2020	Feb. 01, 2020	Nov. 05, 2019
Business Acquisition [Line Items]
Measurement Period Adjustments, Other non-current assets	$ 1,049
Goodwill		$ 5,336,356	$ 5,337,405
Measurement Period Adjustments, Goodwill	(1,049)
Measurement Period Adjustments, Total merger consideration	$ 0
Avera
Business Acquisition [Line Items]
Inventories				$ 106,465
Prepaid expenses and other current assets				17,495
Property and equipment, net				25,677
Acquired intangible assets, net				379,000
Other non-current assets				6,870
Goodwill				129,392
Accrued liabilities				(64,155)
Deferred tax liabilities				(6,594)
Other non-current liabilities				(650)
Total merger consideration				$ 593,500
Aquantia
Business Acquisition [Line Items]
Cash and short term investments		27,914	27,914
Inventories		33,900	33,900
Acquired intangible assets, net		193,000	193,000
Other non-current assets		36,172	35,123
Goodwill		226,545	227,594
Accrued liabilities		(21,813)	(21,813)
Other, net		6,471	6,471
Total merger consideration		$ 502,189	$ 502,189

Business Combinations - Supplem

Business Combinations - Supplemental Pro Forma Information (Details) $ in Thousands	9 Months Ended
	Nov. 02, 2019USD ($)
Business Combinations [Abstract]
Pro forma net revenue	$ 2,293,879
Pro forma net loss	$ (273,216)

Goodwill and Acquired Intangi_3

Goodwill and Acquired Intangible Assets, Net - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended			9 Months Ended		12 Months Ended	16 Months Ended
	Oct. 31, 2020	Aug. 01, 2020	Nov. 02, 2019	Oct. 31, 2020	Nov. 02, 2019	Feb. 01, 2020	Nov. 05, 2019
Finite-Lived Intangible Assets [Line Items]
Goodwill	$ 5,336,356			$ 5,336,356		$ 5,337,405
Intangible assets acquired							$ 3,300,000
Impairment of acquired intangibles		$ 50,300
Weighted average remaining amortization period (years)				5 years 9 months 10 days		6 years 5 months 4 days
Amortization of acquired intangible assets	$ 109,400		$ 92,800	$ 333,934	$ 253,467
IPR&D | Minimum
Finite-Lived Intangible Assets [Line Items]
Weighted average remaining amortization period (years)				3 years
IPR&D | Maximum
Finite-Lived Intangible Assets [Line Items]
Weighted average remaining amortization period (years)				10 years

Goodwill and Acquired Intangi_4

Goodwill and Acquired Intangible Assets, Net - Net Carrying Amounts and Weighted Average Amortization Period (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Oct. 31, 2020	Feb. 01, 2020
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amounts	$ 3,107,000	$ 3,177,000
Accumulated Amortization	(857,618)	(551,400)
Net Carrying Amounts	2,249,382	2,625,600
Gross Carrying Amounts, Total acquired intangible assets	3,238,000	3,316,000
Net Carrying Amounts, Total acquired intangible assets	$ 2,380,382	$ 2,764,600
Weighted-Average Remaining Amortization Period (Years)	5 years 9 months 10 days	6 years 5 months 4 days
In Process Research and Development
Acquired Indefinite-lived Intangible Assets [Line Items]
Indefinite-lived intangible assets (excluding goodwill)	$ 131,000	$ 139,000
Developed technologies
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amounts	2,441,000	2,511,000
Accumulated Amortization	(640,888)	(413,735)
Net Carrying Amounts	$ 1,800,112	$ 2,097,265
Weighted-Average Remaining Amortization Period (Years)	5 years 9 months 10 days	6 years 4 months 28 days
Customer contracts and related relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amounts	$ 643,000	$ 643,000
Accumulated Amortization	(203,868)	(128,939)
Net Carrying Amounts	$ 439,132	$ 514,061
Weighted-Average Remaining Amortization Period (Years)	5 years 10 months 13 days	6 years 7 months 9 days
Trade names
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amounts	$ 23,000	$ 23,000
Accumulated Amortization	(12,862)	(8,726)
Net Carrying Amounts	$ 10,138	$ 14,274
Weighted-Average Remaining Amortization Period (Years)	2 years 4 months 13 days	2 years 11 months 15 days

Goodwill and Acquired Intangi_5

Goodwill and Acquired Intangible Assets, Net - Future Amortization (Details) - USD ($) $ in Thousands	Oct. 31, 2020	Feb. 01, 2020
Goodwill and Intangible Assets Disclosure [Abstract]
Remainder of 2021	$ 109,433
2022	428,015
2023	414,937
2024	393,863
2025	354,012
Thereafter	549,122
Net Carrying Amounts	$ 2,249,382	$ 2,625,600

Restructuring - Additional Info

Restructuring - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended			9 Months Ended
	Oct. 31, 2020	Aug. 01, 2020	Nov. 02, 2019	Oct. 31, 2020	Nov. 02, 2019
Restructuring Cost and Reserve [Line Items]
Restructuring related charges	$ 19,312		$ 14,802	$ 161,189	$ 37,070
Impairment of acquired intangibles		$ 50,300
Server Processor Products
Restructuring Cost and Reserve [Line Items]
Restructuring related charges		119,000
Impairment of acquired intangibles		50,300
Equipment and other assets		32,700
Server Processor Products | Intellectual Property
Restructuring Cost and Reserve [Line Items]
Impairment of acquired intangibles		$ 36,000

Restructuring - Summary of Rest

Restructuring - Summary of Restructuring Related Charges (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 31, 2020	Nov. 02, 2019	Oct. 31, 2020	Nov. 02, 2019
Restructuring and Related Activities [Abstract]
Cost of goods sold	$ 0	$ 0	$ 9,594	$ 0
Restructuring related charges	19,312	14,802	161,189	37,070
Cost of goods sold and restructuring related charges	$ 19,312	$ 14,802	$ 170,783	$ 37,070

Restructuring - Statements of O

Restructuring - Statements of Operations (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 31, 2020	Nov. 02, 2019	Oct. 31, 2020	Nov. 02, 2019
Release of reserves:
Cost of goods sold and restructuring related charges before release of reserves	$ 19,692	$ 14,955	$ 171,808	$ 38,082
Cost of goods sold and restructuring related charges	19,312	14,802	170,783	37,070
Severance and related costs
Release of reserves:
Cost of goods sold and restructuring related charges before release of reserves	12,300	6,874	40,125	15,501
Release of reserves	(367)	(12)	(908)	(12)
Facilities and Related Costs
Release of reserves:
Cost of goods sold and restructuring related charges before release of reserves	5,741	7,546	11,825	18,590
Release of reserves	(10)	(141)	(114)	(873)
Other Exit-Related Costs
Release of reserves:
Cost of goods sold and restructuring related charges before release of reserves	1,651	535	119,858	3,991
Release of reserves	$ (3)	$ 0	$ (3)	$ (127)

Restructuring - Restructuring R

Restructuring - Restructuring Reserve (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Aug. 01, 2020	Oct. 31, 2020	Feb. 01, 2020
Restructuring Reserve [Roll Forward]
Balance at beginning of period		$ 14,428
Restructuring charges		50,138
Release of reserves:		(484)
Net cash payments		(42,497)
Exchange rate adjustment		(13)
Balance at end of period		21,572
Less: non-current portion		653
Accrued restructuring		20,919	$ 14,302
Server Processor Products
Restructuring Reserve [Roll Forward]
Impairment charges	$ 112,100
Severance and Related Costs
Restructuring Reserve [Roll Forward]
Balance at beginning of period		13,228
Restructuring charges		40,125
Release of reserves:		(367)
Net cash payments		(35,321)
Exchange rate adjustment		(13)
Balance at end of period		17,652
Less: non-current portion		0
Accrued restructuring		17,652
Facilities and Related Costs
Restructuring Reserve [Roll Forward]
Balance at beginning of period		653
Restructuring charges		3,391
Release of reserves:		(114)
Net cash payments		(3,866)
Exchange rate adjustment		0
Balance at end of period		64
Less: non-current portion		64
Accrued restructuring		0
Other Exit-Related Costs
Restructuring Reserve [Roll Forward]
Balance at beginning of period		547
Restructuring charges		6,622
Release of reserves:		(3)
Net cash payments		(3,310)
Exchange rate adjustment		0
Balance at end of period		3,856
Less: non-current portion		589
Accrued restructuring		$ 3,267

Revenue - Net Revenue by Produc

Revenue - Net Revenue by Product Group (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 31, 2020	Nov. 02, 2019	Oct. 31, 2020	Nov. 02, 2019
Disaggregation of Revenue [Line Items]
Net revenue	$ 750,143	$ 662,470	$ 2,171,081	$ 1,981,490
Networking
Disaggregation of Revenue [Line Items]
Net revenue	$ 444,756	$ 329,962	$ 1,244,684	$ 1,000,911
Networking | Net revenue
Disaggregation of Revenue [Line Items]
% of Total		50.00%
Networking | Net revenue | Product Concentration Risk
Disaggregation of Revenue [Line Items]
% of Total	59.00%		57.00%	51.00%
Storage
Disaggregation of Revenue [Line Items]
Net revenue	$ 276,279	$ 287,708	$ 825,462	$ 841,280
Storage | Net revenue
Disaggregation of Revenue [Line Items]
% of Total		43.00%
Storage | Net revenue | Product Concentration Risk
Disaggregation of Revenue [Line Items]
% of Total	37.00%		38.00%	42.00%
Other
Disaggregation of Revenue [Line Items]
Net revenue	$ 29,108	$ 44,800	$ 100,935	$ 139,299
Other | Net revenue
Disaggregation of Revenue [Line Items]
% of Total		7.00%
Other | Net revenue | Product Concentration Risk
Disaggregation of Revenue [Line Items]
% of Total	4.00%		5.00%	7.00%

Revenue - Net Revenue Based on

Revenue - Net Revenue Based on Destination of Shipment (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 31, 2020	Nov. 02, 2019	Oct. 31, 2020	Nov. 02, 2019
Disaggregation of Revenue [Line Items]
Net revenue	$ 750,143	$ 662,470	$ 2,171,081	$ 1,981,490
China
Disaggregation of Revenue [Line Items]
Net revenue	$ 324,927	$ 258,028	$ 908,255	$ 790,473
China | Revenue from Contract with Customer Benchmark
Disaggregation of Revenue [Line Items]
% of Total	43.00%	39.00%	42.00%	40.00%
United States
Disaggregation of Revenue [Line Items]
Net revenue	$ 73,751	$ 61,772	$ 241,814	$ 190,357
United States | Revenue from Contract with Customer Benchmark
Disaggregation of Revenue [Line Items]
% of Total	10.00%	9.00%	11.00%	10.00%
Malaysia
Disaggregation of Revenue [Line Items]
Net revenue	$ 73,582	$ 53,551	$ 198,436	$ 152,890
Malaysia | Revenue from Contract with Customer Benchmark
Disaggregation of Revenue [Line Items]
% of Total	10.00%	8.00%	9.00%	8.00%
Thailand
Disaggregation of Revenue [Line Items]
Net revenue	$ 55,617	$ 59,112	$ 183,625	$ 169,289
Thailand | Revenue from Contract with Customer Benchmark
Disaggregation of Revenue [Line Items]
% of Total	7.00%	9.00%	8.00%	9.00%
Philippines
Disaggregation of Revenue [Line Items]
Net revenue	$ 44,356	$ 51,710	$ 118,485	$ 174,484
Philippines | Revenue from Contract with Customer Benchmark
Disaggregation of Revenue [Line Items]
% of Total	6.00%	8.00%	5.00%	9.00%
Japan
Disaggregation of Revenue [Line Items]
Net revenue	$ 32,811	$ 41,149	$ 104,676	$ 121,239
Japan | Revenue from Contract with Customer Benchmark
Disaggregation of Revenue [Line Items]
% of Total	4.00%	6.00%	5.00%	6.00%
Other
Disaggregation of Revenue [Line Items]
Net revenue	$ 145,099	$ 137,148	$ 415,790	$ 382,758
Other | Revenue from Contract with Customer Benchmark
Disaggregation of Revenue [Line Items]
% of Total	20.00%	21.00%	20.00%	18.00%

Revenue - Net Revenue by Custom

Revenue - Net Revenue by Customer Type (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 31, 2020	Nov. 02, 2019	Oct. 31, 2020	Nov. 02, 2019
Disaggregation of Revenue [Line Items]
Net revenue	$ 750,143	$ 662,470	$ 2,171,081	$ 1,981,490
Direct customers
Disaggregation of Revenue [Line Items]
Net revenue	$ 573,759	$ 476,253	$ 1,646,511	$ 1,475,554
Direct customers | Revenue from Contract with Customer Benchmark
Disaggregation of Revenue [Line Items]
% of Total	76.00%	72.00%	76.00%	74.00%
Distributors
Disaggregation of Revenue [Line Items]
Net revenue	$ 176,384	$ 186,217	$ 524,570	$ 505,936
Distributors | Revenue from Contract with Customer Benchmark
Disaggregation of Revenue [Line Items]
% of Total	24.00%	28.00%	24.00%	26.00%

Revenue - Contract Liabilities

Revenue - Contract Liabilities (Details) $ in Thousands	9 Months Ended
	Oct. 31, 2020USD ($)
Contract Liabilities
Beginning balance	$ 111,500
Variable consideration estimates	617,700
Credit memos issued	596,300
Ending balance	132,900
Revenue recognized	$ 0

Supplemental Financial Inform_3

Supplemental Financial Information - Inventories (Details) - USD ($) $ in Thousands	Oct. 31, 2020	Feb. 01, 2020
Inventories:
Work-in-process	$ 181,961	$ 216,496
Finished goods	86,435	106,484
Inventories	$ 268,396	$ 322,980

Supplemental Financial Inform_4

Supplemental Financial Information - Property and Equipment, Net (Details) - USD ($) $ in Thousands	Oct. 31, 2020	Feb. 01, 2020
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 1,095,809	$ 1,096,630
Less: Accumulated depreciation and amortization	(764,040)	(739,538)
Property and equipment, net	331,769	357,092
Machinery and equipment
Property, Plant and Equipment [Line Items]
Property and equipment, gross	677,843	686,351
Land, buildings, and leasehold improvements
Property, Plant and Equipment [Line Items]
Property and equipment, gross	288,859	285,084
Computer software
Property, Plant and Equipment [Line Items]
Property and equipment, gross	101,955	100,613
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 27,152	$ 24,582

Supplemental Financial Inform_5

Supplemental Financial Information - Other Non-current Assets (Details) - USD ($) $ in Thousands	Oct. 31, 2020	Feb. 01, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Technology and other licenses	$ 218,666	$ 277,634
Operating right-of-use assets	108,659	110,907
Prepaid ship and debit	88,989	75,362
Other	53,788	32,947
Other non-current assets	$ 470,102	$ 496,850

Supplemental Financial Inform_6

Supplemental Financial Information - Accrued Liabilities (Details) - USD ($) $ in Thousands	Oct. 31, 2020	Feb. 01, 2020
Accrued liabilities:
Contract liabilities	$ 132,850	$ 111,486
Technology license obligations	81,182	71,623
Deferred non-recurring engineering credits	47,804	51,109
Lease liabilities-current	32,134	28,662
Accrued restructuring	20,919	14,302
Deferred revenue	19,466	5,647
Accrued interest	19,085	7,892
Other	53,546	55,918
Accrued liabilities	$ 406,986	$ 346,639

Supplemental Financial Inform_7

Supplemental Financial Information - Other Non-current Liabilities (Details) - USD ($) $ in Thousands	Oct. 31, 2020	Feb. 01, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Lease liabilities-non current	$ 111,760	$ 115,778
Technology license obligations	72,896	107,893
Deferred tax liabilities	37,645	31,233
Non-current income tax payable	26,263	37,983
Other	25,706	12,578
Other non-current liabilities	$ 274,270	$ 305,465

Supplemental Financial Inform_8

Supplemental Financial Information - Changes in Accumulated Other Comprehensive Income by Components (Details) - USD ($) $ in Thousands	3 Months Ended				9 Months Ended
	Oct. 31, 2020	Aug. 01, 2020	May 02, 2020	Nov. 02, 2019	Oct. 31, 2020	Nov. 02, 2019
Increase (Decrease) in AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at beginning of period	$ 8,417,537	$ 8,535,622	$ 8,678,580	$ 7,203,812	$ 8,678,580	$ 7,306,410
Other comprehensive income (loss), net of tax	(450)	(418)	868	37	0	37
Balance at end of period	8,389,617	$ 8,417,537	8,535,622	7,165,818	8,389,617	7,165,818
Unrealized Gain (Loss) on Cash Flow Hedges
Increase (Decrease) in AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at beginning of period			$ 0		0	0
Other comprehensive income before reclassifications					1,214	0
Amounts reclassified from accumulated other comprehensive income					(1,214)	37
Other comprehensive income (loss), net of tax					0	37
Balance at end of period	$ 0			$ 37	$ 0	$ 37

Supplemental Financial Inform_9

Supplemental Financial Information - Share Repurchase Program (Details) - USD ($)	3 Months Ended	9 Months Ended
	Oct. 31, 2020	Oct. 31, 2020	Nov. 02, 2019	Oct. 16, 2018	Nov. 17, 2016	Nov. 16, 2016
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Authorized repurchase amount					$ 1,000,000,000	$ 3,250,000,000
Stock repurchase program, additional authorized amount				$ 700,000,000
Remaining available for future share repurchases (in shares)	$ 564,500,000	$ 564,500,000
Number of common shares repurchased and retired during period (in shares)	0	1,300,000	3,000,000
Value of common shares repurchased and retired during period		$ 25,200,000	$ 64,300,000

Fair Value Measurements (Detail

Fair Value Measurements (Details) - USD ($) $ in Thousands	Oct. 31, 2020	Feb. 01, 2020
Assets
Other non-current assets	$ 588	$ 693
Total assets	133,044	135,225
Money market funds
Assets
Cash equivalents		46,355
Time deposits
Assets
Cash equivalents	132,456	88,177
Level 1
Assets
Other non-current assets	0	0
Total assets	0	46,355
Level 1 | Money market funds
Assets
Cash equivalents		46,355
Level 1 | Time deposits
Assets
Cash equivalents	0	0
Level 2
Assets
Other non-current assets	588	693
Total assets	133,044	88,870
Level 2 | Notes
Assets
Estimated aggregate fair value of debt	1,100,000	1,100,000
Level 2 | Money market funds
Assets
Cash equivalents		0
Level 2 | Time deposits
Assets
Cash equivalents	132,456	88,177
Level 3
Assets
Other non-current assets	0	0
Total assets	0	0
Level 3 | Money market funds
Assets
Cash equivalents		0
Level 3 | Time deposits
Assets
Cash equivalents	$ 0	$ 0

Debt - Term Loan and Revolving

Debt - Term Loan and Revolving Credit Facility (Details)	3 Months Ended	9 Months Ended
	Oct. 31, 2020USD ($)	Oct. 31, 2020USD ($)	Jun. 13, 2018USD ($)lender
Line of Credit Facility [Line Items]
Number of lenders | lender			12
Unused commitment fee percentage		0.175%
Line of Credit | Revolving Credit Facility
Line of Credit Facility [Line Items]
Borrowing capacity	$ 500,000,000	$ 500,000,000	$ 500,000,000
Debt term		5 years
Line of Credit | Revolving Credit Facility | LIBOR
Line of Credit Facility [Line Items]
Basis spread on variable rate (as a percent)		1.50%
Term Loan
Line of Credit Facility [Line Items]
Borrowing capacity			$ 900,000,000
Debt term		3 years
Effective interest rate	3.684%	3.684%
Repayments of debt	$ 100,000,000
Debt issuance cost write off	$ 300,000
Term Loan | LIBOR
Line of Credit Facility [Line Items]
Basis spread on variable rate (as a percent)		1.375%

Debt - Senior Unsecured Notes (

Debt - Senior Unsecured Notes (Details) - Senior Notes	Jun. 22, 2018USD ($)
Debt Instrument [Line Items]
Aggregate principal amount	$ 1,000,000,000
Redemption price percentage	101.00%
2023 Notes
Debt Instrument [Line Items]
Aggregate principal amount	$ 500,000,000
Stated interest rate	4.20%
Effective interest rate	4.423%
2028 Notes
Debt Instrument [Line Items]
Aggregate principal amount	$ 500,000,000
Stated interest rate	4.875%
Effective interest rate	5.012%

Debt - Summary of Borrowings an

Debt - Summary of Borrowings and Outstanding Debt (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 31, 2020	Nov. 02, 2019	Oct. 31, 2020	Nov. 02, 2019	Feb. 01, 2020
Debt Instrument [Line Items]
Total borrowings	$ 1,350,000		$ 1,350,000		$ 1,450,000
Less: Unamortized debt discount and issuance cost	(8,195)		(8,195)		(10,976)
Net carrying amount of debt	1,341,805		1,341,805		1,439,024
Less: Current portion (1)	349,004		349,004		0
Non-current portion	992,801		992,801		1,439,024
Interest expense	14,100	$ 20,600	43,600	$ 59,800
Term Loan
Debt Instrument [Line Items]
Total borrowings	350,000		350,000		450,000
Notes | 2023 Notes
Debt Instrument [Line Items]
Total borrowings	500,000		500,000		500,000
Notes | 2028 Notes
Debt Instrument [Line Items]
Total borrowings	$ 500,000		$ 500,000		$ 500,000

Debt - Future Maturities (Detai

Debt - Future Maturities (Details) - USD ($) $ in Thousands	Oct. 31, 2020	Feb. 01, 2020
Fiscal Year
Remainder of 2021	$ 0
2022	350,000
2023	0
2024	500,000
2025	0
Thereafter	500,000
Total	$ 1,350,000	$ 1,450,000

Commitments and Contingencies (

Commitments and Contingencies (Details) $ in Millions	Oct. 31, 2020USD ($)
Commitments and Contingencies Disclosure [Abstract]
Outstanding purchase orders	$ 237.8

Income Tax (Details)

Income Tax (Details) - USD ($)	3 Months Ended		9 Months Ended
	Oct. 31, 2020	Nov. 02, 2019	Oct. 31, 2020	Nov. 02, 2019
Income Taxes [Line Items]
Income tax expense (benefit)	$ 1,641,000	$ (1,532,000)	$ 5,494,000	$ 1,743,000
Current income tax expense (benefit)			(1,900,000)
Unrecognized tax benefits decrease			15,000,000
Tax benefit from asset impairment			10,800,000
Income tax expense, other discrete items			17,400,000
Uncertain tax positions, decrease from the lapse of statutes of limitation in various jurisdictions during next 12 months	5,300,000		5,300,000
Tax incentives, decrease in foreign taxes	0	$ 1,000,000	0	$ 2,700,000
Tax incentives, effect on net income per share (less than) (in dollars per share)		$ 0.01		$ 0.01
Cash, cash equivalents and short-term investments	832,000,000		832,000,000
Undistributed earnings of foreign subsidiaries	280,900,000		280,900,000
Foreign Subsidiaries
Income Taxes [Line Items]
Cash, cash equivalents and short-term investments	$ 694,100,000		$ 694,100,000

Net Loss Per Share - Computatio

Net Loss Per Share - Computations of Basic and Diluted Net Income Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended						9 Months Ended
	Oct. 31, 2020	Aug. 01, 2020	May 02, 2020	Nov. 02, 2019	Aug. 03, 2019	May 04, 2019	Oct. 31, 2020	Nov. 02, 2019
Numerator:
Net loss	$ (22,908)	$ (157,893)	$ (113,033)	$ (82,501)	$ (57,331)	$ (48,450)	$ (293,834)	$ (188,282)
Denominator:
Weighted average shares — basic (in shares)	670,487			668,178			667,186	667,184
Effect of dilutive securities:
Share-based awards (in shares)	0			0			0	0
Weighted average shares — diluted (in shares)	670,487			668,178			667,186	667,184
Net loss per share:
Basic (in dollars per share)	$ (0.03)			$ (0.12)			$ (0.44)	$ (0.28)
Diluted (in dollars per share)	$ (0.03)			$ (0.12)			$ (0.44)	$ (0.28)

Net Loss Per Share - Anti-dilut

Net Loss Per Share - Anti-dilutive Potential Shares (Details) - shares shares in Thousands	3 Months Ended		9 Months Ended
	Oct. 31, 2020	Nov. 02, 2019	Oct. 31, 2020	Nov. 02, 2019
Earnings Per Share [Abstract]
Share-based awards (in shares)	12,456	13,000	10,401	13,380