Income Taxes - Summary of Deferred Tax Assets and Liabilities (Detail) (USD $) In Thousands, unless otherwise specified	Feb. 01, 2014	Feb. 02, 2013
Income Tax Disclosure [Abstract]
Current net deferred tax asset	$ 3,715	$ 5,238
Noncurrent net deferred tax asset	138,576	122,827
Net deferred taxes before valuation allowance	142,291	128,065
Valuation allowance	(138,281)	(123,920)
Total net deferred tax asset	4,010	4,145
Deferred Tax Assets, Gross [Abstract]
Net operating loss and tax credit carryforwards	126,213	113,264
Deferred lease incentives	5,414	6,047
Deferred rent	6,372	6,506
Deferred and stock-based compensation	4,912	4,516
Inventory cost capitalization	2,552	2,635
Other	3,384	4,931
Total deferred tax assets	148,847	137,899
Deferred Tax Liabilities, Gross [Abstract]
Depreciation and amortization	(2,920)	(6,165)
Prepaid expenses	(2,234)	(2,219)
State income taxes	(1,402)	(1,450)
Total deferred tax liabilities	$ (6,556)	$ (9,834)