Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Aug. 01, 2021	Aug. 02, 2020
CASH FLOWS FROM OPERATING ACTIVITIES
Net loss	$ (129,471)	$ (155,561)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization	38,099	31,597
Amortization of debt discount and debt issuance costs	15,154	14,125
Stock-based compensation expense	131,763	120,146
Impairment of long-lived assets	0	7,505
Other	6,516	1,972
Changes in operating assets and liabilities:
Accounts receivable, net	102,506	91,896
Inventory	(3,242)	1,735
Deferred commissions	(8,041)	(5,483)
Prepaid expenses and other assets	(24,955)	(26,389)
Operating lease right-of-use assets	14,818	14,181
Accounts payable	(9,267)	(21,090)
Accrued compensation and other liabilities	(40,952)	(3,217)
Operating lease liabilities	(14,205)	(13,071)
Deferred revenue	66,117	27,463
Net cash provided by operating activities	144,840	85,809
CASH FLOWS FROM INVESTING ACTIVITIES
Purchases of property and equipment	(55,499)	(48,776)
Purchases of marketable securities	(317,371)	(291,237)
Sales of marketable securities	114,038	91,351
Maturities of marketable securities	169,770	206,174
Net cash used in investing activities	(89,062)	(42,488)
CASH FLOWS FROM FINANCING ACTIVITIES
Net proceeds from exercise of stock options	11,163	21,658
Proceeds from issuance of common stock under employee stock purchase plan	17,726	16,021
Proceeds from borrowing	0	4,950
Repayments of borrowing	(605)	0
Tax withholding on vesting of equity awards	(6,564)	(2,841)
Repurchases of common stock	(74,393)	(90,143)
Net cash used in financing activities	(52,673)	(50,355)
Net (decrease) increase in cash, cash equivalents and restricted cash	3,105	(7,034)
Cash, cash equivalents and restricted cash, beginning of period	347,691	377,922
Cash, cash equivalents and restricted cash, end of period	350,796	370,888
SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION
Cash paid for interest	2,520	359
Cash paid for income taxes	6,050	5,070
Cash paid for amounts included in the measurement of operating lease liabilities	17,904	17,849
SUPPLEMENTAL DISCLOSURES OF NON-CASH INVESTING AND FINANCING INFORMATION
Property and equipment purchased but not yet paid	7,402	6,619
Operating lease right-of-use assets obtained in exchange for operating lease liabilities	$ 2,787	$ 29,754