Income Taxes - Components of Deferred Tax Assets and Liabilities (Detail) - USD ($) $ in Thousands	Jan. 28, 2017	Jan. 30, 2016
Non-current deferred tax assets (liabilities)
Stock-based compensation	$ 37,804	$ 32,248
Inventory	37,198	29,430
Deferred lease credits	25,457	20,074
Accrued expense	18,024	18,964
Deferred revenue	1,887	1,800
Charitable contributions	1,877
U.S. impact of Canadian transfer pricing	1,404	1,420
Net operating loss carryforwards	1,044	214
Property and equipment	(32,396)	(24,905)
Prepaid expense and other	(28,387)	(17,956)
Trademarks and domain names	(28,345)	(18,414)
State tax benefit	(4,143)	(3,052)
Convertible senior notes	(3,867)	(4,719)
Other	1,669	1,793
Non-current deferred tax assets	29,226	36,897
Valuation allowance	(760)	(158)
Net non-current deferred tax assets	$ 28,466	$ 36,739