Significant Accounting Policies - Summary of Allowance for Sales Returns (Detail) - USD ($) $ in Thousands	12 Months Ended
	Feb. 02, 2019	Feb. 03, 2018	Jan. 28, 2017
Balance at beginning of fiscal year	$ 10,565	$ 10,077	$ 12,688
Impact of Topic 606 adoption	5,862
Provision for sales returns	112,218	108,134	106,508
Actual sales returns	(108,824)	(107,646)	(109,642)
Balance at end of fiscal year	$ 19,821	$ 10,565	10,077
Waterworks [Member]
Balance at beginning of fiscal year			$ 523