Significant Accounting Policies - Summary of Allowance for Sales Returns, Net of Cost of Goods Sold (Detail) - USD ($) $ in Thousands	12 Months Ended
	Jan. 30, 2016	Jan. 31, 2015	Feb. 01, 2014
Accounting Policies [Abstract]
Balance at beginning of fiscal year	$ 10,235	$ 12,142	$ 5,206
Provision for sales returns	104,028	87,217	86,541
Actual sales returns	(101,575)	(89,124)	(79,605)
Balance at end of fiscal year	$ 12,688	$ 10,235	$ 12,142