Income Taxes - Components of Deferred Income Taxes (Detail) (USD $) In Thousands, unless otherwise specified	Jan. 31, 2015	Feb. 01, 2014
Deferred tax assets:
Deferred rent	$ 18,832	$ 16,779
Employee benefits, including stock based compensation	3,595	5,967
Net operating losses	3,053	2,045
Accrued liabilities	1,971	2,507
Inventory	1,351us-gaap_DeferredTaxAssetsInventory	672us-gaap_DeferredTaxAssetsInventory
Other	1,508us-gaap_DeferredTaxAssetsOther	1,251us-gaap_DeferredTaxAssetsOther
Total deferred tax assets	30,310us-gaap_DeferredTaxAssetsGross	29,221us-gaap_DeferredTaxAssetsGross
Deferred tax liabilities:
Property and equipment	(21,197)	(19,937)
Goodwill and other intangibles	(6,424)	(7,463)
Other	(693)us-gaap_DeferredTaxLiabilitiesOther	(543)us-gaap_DeferredTaxLiabilitiesOther
Total deferred tax liabilities	(28,314)us-gaap_DeferredIncomeTaxLiabilities	(27,943)us-gaap_DeferredIncomeTaxLiabilities
Net deferred tax assets	1,996us-gaap_DeferredTaxAssetsLiabilitiesNet	1,278us-gaap_DeferredTaxAssetsLiabilitiesNet
Reported as:
Current deferred tax assets	6,965	5,194
Long-term deferred tax assets (included in long-term other assets)	769	733
Current deferred income tax liabilities (included in other liabilities)	0us-gaap_DeferredTaxLiabilitiesCurrent	0us-gaap_DeferredTaxLiabilitiesCurrent
Long-term deferred tax liabilities	(5,738)	(4,649)
Net deferred tax assets	$ 1,996us-gaap_DeferredTaxAssetsLiabilitiesNet	$ 1,278us-gaap_DeferredTaxAssetsLiabilitiesNet

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