UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	May 02, 2020	May 04, 2019
Cash flows from operating activities:
Net loss	$ (113,033)	$ (48,450)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization	50,483	38,654
Share-based compensation	59,687	58,598
Amortization of acquired intangible assets	112,922	79,740
Amortization of inventory fair value adjustment associated with acquisitions	17,284	0
Other expense, net	11,451	12,577
Deferred income taxes	2,372	4,356
Changes in assets and liabilities:
Accounts receivable	23,586	22,775
Inventories	35,834	15,848
Prepaid expenses and other assets	(6,694)	8,004
Accounts payable	(3,557)	(1,873)
Accrued liabilities and other non-current liabilities	10,796	(30,929)
Accrued employee compensation	(25,503)	6,516
Net cash provided by operating activities	175,628	165,816
Cash flows from investing activities:
Purchases of technology licenses	(3,684)	(1,484)
Purchases of property and equipment	(35,343)	(19,183)
Other, net	665	(342)
Net cash used in investing activities	(38,362)	(21,009)
Cash flows from financing activities:
Repurchases of common stock	(25,202)	(48,022)
Proceeds from employee stock plans	5,458	31,084
Tax withholding paid on behalf of employees for net share settlement	(31,501)	(28,758)
Dividend payments to shareholders	(39,763)	(39,467)
Payments on technology license obligations	(23,807)	(15,268)
Principal payments of debt	0	(50,000)
Other, net	(2,507)	(4,893)
Net cash used in financing activities	(117,322)	(155,324)
Net increase (decrease) in cash and cash equivalents	19,944	(10,517)
Cash and cash equivalents at beginning of period	647,604	582,410
Cash and cash equivalents at end of period	667,548	571,893
Depreciation and amortization	$ 50,483	$ 38,654