Condensed Consolidated Statements of Stockholders’ Equity - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Accumulated Other Comprehensive Income (Loss)	Accumulated Deficit	Restricted Stock Units Common Stock	Restricted Stock Units Additional Paid-in Capital	Restricted Stock	Restricted Stock Common Stock
Beginning balance (in shares) at Feb. 02, 2020		264,008
Beginning balance at Feb. 02, 2020	$ 830,118	$ 26	$ 2,107,579	$ 5,449	$ (1,282,936)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock upon exercise of stock options (in shares)		4,991
Issuance of common stock upon exercise of stock options	25,645	$ 1	25,644
Stock-based compensation expense	179,884		179,884
Vesting of restricted stock units (in shares)						8,445
Vesting of restricted stock units	0					$ 1	$ (1)
Tax withholding on vesting of restricted stock (in shares)		(305)
Tax withholding on vesting of restricted stock	4,080		4,080
Tax withholding on vesting of equity awards (in shares)		(305)
Tax withholding on vesting of equity awards	(4,080)		(4,080)
Common stock issued under employee stock purchase plan (in shares)		3,714
Common stock issued under employee stock purchase plan	32,439		32,439
Repurchases of common stock (in shares)		(8,496)
Repurchases of common stock	(111,554)	$ (1)	(111,553)
Equity awards assumed in an acquisition	8,802		8,802
Other comprehensive income (loss)	3,610			3,610
Cancellation and forfeiture of restricted stock (in shares)		(317)
Cancellation and forfeiture of restricted stock	0
Net loss	(229,783)				(229,783)
Ending balance (in shares) at Nov. 01, 2020		272,040
Ending balance at Nov. 01, 2020	735,081	$ 27	2,238,714	9,059	(1,512,719)
Beginning balance (in shares) at Aug. 02, 2020		267,776
Beginning balance at Aug. 02, 2020	746,106	$ 27	2,172,391	12,185	(1,438,497)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock upon exercise of stock options (in shares)		678
Issuance of common stock upon exercise of stock options	4,019		4,019
Stock-based compensation expense	59,734		59,734
Vesting of restricted stock units (in shares)						2,990
Vesting of restricted stock units	0		0
Tax withholding on vesting of restricted stock (in shares)		(86)
Tax withholding on vesting of restricted stock	1,239		1,239
Tax withholding on vesting of equity awards (in shares)		(86)
Tax withholding on vesting of equity awards	(1,239)		(1,239)
Forfeiture of restricted stock (in shares)									(87)
Forfeiture of restricted stock								$ 0
Common stock issued under employee stock purchase plan (in shares)		2,129
Common stock issued under employee stock purchase plan	16,418		16,418
Repurchases of common stock (in shares)		(1,360)
Repurchases of common stock	(21,411)		(21,411)
Equity awards assumed in an acquisition	8,802		8,802
Other comprehensive income (loss)	(3,126)			(3,126)
Net loss	(74,222)				(74,222)
Ending balance (in shares) at Nov. 01, 2020		272,040
Ending balance at Nov. 01, 2020	735,081	$ 27	2,238,714	9,059	(1,512,719)
Beginning balance (in shares) at Jan. 31, 2021		278,363
Beginning balance at Jan. 31, 2021	750,006	$ 28	2,307,580	7,410	(1,565,012)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock upon exercise of stock options (in shares)		3,983
Issuance of common stock upon exercise of stock options	33,573		33,573
Stock-based compensation expense	209,401		209,401
Vesting of restricted stock units (in shares)						9,875
Vesting of restricted stock units	0					$ 1	(1)
Tax withholding on vesting of restricted stock (in shares)		(386)
Tax withholding on vesting of restricted stock	8,670		8,670
Tax withholding on vesting of equity awards (in shares)		(386)
Tax withholding on vesting of equity awards	(8,670)		(8,670)
Forfeiture of restricted stock (in shares)		(62)
Forfeiture of restricted stock	0
Common stock issued under employee stock purchase plan (in shares)		4,365
Common stock issued under employee stock purchase plan	36,641		36,641
Repurchases of common stock (in shares)		(6,057)
Repurchases of common stock	(130,608)		(130,608)
Other comprehensive income (loss)	(7,717)			(7,717)
Net loss	(158,202)				(158,202)
Ending balance (in shares) at Oct. 31, 2021		290,081
Ending balance at Oct. 31, 2021	724,424	$ 29	2,447,916	(307)	(1,723,214)
Beginning balance (in shares) at Aug. 01, 2021		284,734
Beginning balance at Aug. 01, 2021	697,444	$ 28	2,388,418	3,481	(1,694,483)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock upon exercise of stock options (in shares)		2,086
Issuance of common stock upon exercise of stock options	22,289		22,289
Stock-based compensation expense	76,616		76,616
Vesting of restricted stock units (in shares)						3,548
Vesting of restricted stock units	0					$ 1	$ (1)
Tax withholding on vesting of restricted stock (in shares)		(81)
Tax withholding on vesting of restricted stock	2,106		2,106
Tax withholding on vesting of equity awards (in shares)		(81)
Tax withholding on vesting of equity awards	(2,106)		(2,106)
Forfeiture of restricted stock (in shares)									(25)
Forfeiture of restricted stock								$ 0
Common stock issued under employee stock purchase plan (in shares)		2,180
Common stock issued under employee stock purchase plan	18,915		18,915
Repurchases of common stock (in shares)		(2,361)
Repurchases of common stock	(56,215)		(56,215)
Other comprehensive income (loss)	(3,788)			(3,788)
Net loss	(28,731)				(28,731)
Ending balance (in shares) at Oct. 31, 2021		290,081
Ending balance at Oct. 31, 2021	$ 724,424	$ 29	$ 2,447,916	$ (307)	$ (1,723,214)