Condensed Consolidated Statements of Comprehensive Loss - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Aug. 07, 2022	Aug. 01, 2021	Aug. 07, 2022	Aug. 01, 2021
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 10,922	$ (45,265)	$ (613)	$ (129,471)
Other comprehensive loss:
Unrealized net losses on available-for-sale securities	(1,222)	(1,192)	(11,709)	(3,411)
Less: reclassification adjustment for net gains on available-for-sale securities included in net loss	(32)	(95)	(25)	(518)
Change in unrealized net losses on available-for-sale securities	(1,254)	(1,287)	(11,734)	(3,929)
Comprehensive income (loss)	$ 9,668	$ (46,552)	$ (12,347)	$ (133,400)