Condensed Consolidated Statements of Comprehensive Loss - USD ($) $ in Thousands	3 Months Ended
	May 07, 2023	May 08, 2022
Statement of Comprehensive Income [Abstract]
Net loss	$ (67,401)	$ (11,535)
Other comprehensive (loss) income:
Unrealized net (losses) gains on available-for-sale securities	4,866	(10,487)
Less: reclassification adjustment for net losses (gains) on available-for-sale securities included in net loss	(268)	7
Change in unrealized net (losses) gains on available-for-sale securities	4,598	(10,480)
Comprehensive loss	$ (62,803)	$ (22,015)