Condensed Consolidated Statements of Stockholders’ Equity - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Accumulated Other Comprehensive Income	Accumulated Deficit	Restricted Stock Units Common Stock	Restricted stock	Restricted stock Common Stock	Restricted stock Additional Paid-in Capital
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)		2,175
Issuance of common stock upon exercise of stock options	9,388	$ 0	9,388
Stock-based compensation expense	58,694		58,694
Vesting of restricted stock units (in shares)						2,525
Vesting of restricted stock units						$ 0
Cancellation of restricted stock (in shares)		(230)
Tax withholding on vesting of equity awards (in shares)								(134)
Tax withholding on vesting of restricted stock							$ (1,374)		$ (1,374)
Common stock issued under employee stock purchase plan (in shares)		1,585
Common stock issued under employee stock purchase plan	16,021		16,021
Repurchases of common stock (in shares)		(5,959)
Repurchases of common stock	(70,119)	$ 0	(70,119)
Other comprehensive income (loss)	4,724			4,724
Net loss	(90,594)				(90,594)
Ending balance (in shares) at May. 03, 2020		263,970
Ending balance at May. 03, 2020	756,858	$ 26	2,120,189	10,173	(1,373,530)
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)		1,331
Issuance of common stock upon exercise of stock options	7,895	$ 0	7,895
Stock-based compensation expense	61,764		61,764
Vesting of restricted stock units (in shares)						3,082
Vesting of restricted stock units						$ 0
Tax withholding on vesting of equity awards (in shares)		(226)
Tax withholding on vesting of restricted stock	(5,050)		(5,050)
Common stock issued under employee stock purchase plan (in shares)		2,185
Common stock issued under employee stock purchase plan	17,726		17,726
Repurchases of common stock (in shares)		(1,383)
Repurchases of common stock	(30,020)	$ 0	(30,020)
Other comprehensive income (loss)	(2,642)			(2,642)
Net loss	(84,206)				(84,206)
Ending balance (in shares) at May. 02, 2021		283,352
Ending balance at May. 02, 2021	$ 715,473	$ 28	$ 2,359,895	$ 4,768	$ (1,649,218)