Significant Accounting Policies - Summary of Allowance for Sales Returns (Detail) - USD ($) $ in Thousands	12 Months Ended
	Jan. 30, 2021	Feb. 01, 2020	Feb. 02, 2019
Balance at beginning of fiscal year	$ 19,206	$ 19,821	$ 10,565
Impact of Topic 606 adoption			5,862
Provision for sales returns	133,226	107,811	112,218
Actual sales returns	(126,873)	(108,426)	(108,824)
Balance at end of fiscal year	25,559	19,206	$ 19,821
Retained earnings	(137,438)	$ (409,253)
Impact of Topic 606 adoption | Accounting Standards Update 2014-09
Retained earnings	$ 21,000