Significant Accounting Policies - Summary of Allowance for Sales Returns (Detail) - USD ($) $ in Thousands	12 Months Ended
	Feb. 01, 2020	Feb. 02, 2019	Feb. 03, 2018
Significant Accounting Policies
Balance at beginning of fiscal year	$ 19,821	$ 10,565	$ 10,077
Impact of Topic 606 adoption		5,862
Provision for sales returns	107,811	112,218	108,134
Actual sales returns	(108,426)	(108,824)	(107,646)
Balance at end of fiscal year	$ 19,206	$ 19,821	$ 10,565