UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Aug. 01, 2020	Aug. 03, 2019
Cash flows from operating activities:
Net loss	$ (270,926)	$ (105,781)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization	102,088	76,580
Share-based compensation	122,273	122,274
Amortization of acquired intangible assets	224,501	160,707
Amortization of inventory fair value adjustment associated with acquisitions	17,284	0
Restructuring related impairment charges	117,546	10,097
Other expense, net	14,910	14,534
Deferred income taxes	(444)	2,374
Changes in assets and liabilities:
Accounts receivable	8,804	40,376
Inventories	35,801	8,674
Prepaid expenses and other assets	(3,015)	(7,993)
Accounts payable	29,647	22,497
Accrued liabilities and other non-current liabilities	21,528	(80,117)
Accrued employee compensation	(18,539)	(25,266)
Net cash provided by operating activities	401,458	238,956
Cash flows from investing activities:
Purchases of technology licenses	(6,764)	(1,522)
Purchases of property and equipment	(52,883)	(42,193)
Other, net	699	(389)
Net cash used in investing activities	(58,948)	(44,104)
Cash flows from financing activities:
Repurchases of common stock	(25,202)	(64,272)
Proceeds from employee stock plans	48,234	81,314
Tax withholding paid on behalf of employees for net share settlement	(56,714)	(61,642)
Dividend payments to shareholders	(79,882)	(79,356)
Payments on technology license obligations	(42,509)	(28,324)
Principal payments of debt	0	(50,000)
Other, net	(2,507)	(1,486)
Net cash used in financing activities	(158,580)	(203,766)
Net increase (decrease) in cash and cash equivalents	183,930	(8,914)
Cash and cash equivalents at beginning of period	647,604	582,410
Cash and cash equivalents at end of period	$ 831,534	$ 573,496