Condensed Consolidated Statements of Comprehensive Income (Loss) (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 31, 2021	Aug. 01, 2020	Jul. 31, 2021	Aug. 01, 2020
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 26,187	$ (46,845)	$ 17,258	$ (225,135)
Other comprehensive income (loss):
Unrealized (losses) gains on marketable securities, net of taxes	(20)	108	(54)	(29)
Foreign currency translation adjustment	0	712	0	580
Comprehensive income (loss)	$ 26,167	$ (46,025)	$ 17,204	$ (224,584)