Condensed Consolidated Statements of Comprehensive Loss (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Aug. 01, 2020	Aug. 03, 2019	Aug. 01, 2020	Aug. 03, 2019
Statement of Comprehensive Income [Abstract]
Net loss	$ (46,845)	$ (2,309)	$ (225,135)	$ (284)
Other comprehensive loss:
Unrealized gains (losses) on marketable securities, net of taxes	108	131	(29)	194
Foreign currency translation adjustment	712	103	580	21
Comprehensive loss	$ (46,025)	$ (2,075)	$ (224,584)	$ (69)