Income Taxes - Components of Deferred Tax Assets and Liabilities (Detail) - USD ($) $ in Thousands  | 
Jan. 28, 2017  | 
Jan. 30, 2016  | 
|---|---|---|
| Deferred tax assets: | ||
| Reserves not currently deductible | $ 33,805 | $ 27,734 | 
| Employee benefits | 15,206 | 10,594 | 
| Credit carryforwards | 398 | 441 | 
| Accrued liabilities | 10,539 | 10,704 | 
| Inventory valuation | 3,630 | 257 | 
| Total deferred tax assets | 63,578 | 49,730 | 
| Deferred tax liabilities: | ||
| Property and equipment | 73,454 | 48,898 | 
| Deferred rent obligation | 62,252 | 49,548 | 
| Prepaid expenses | 14,370 | 10,811 | 
| Total deferred tax liabilities | 150,076 | 109,257 | 
| Net deferred tax liability | $ (86,498) | $ (59,527) | 
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- References No definition available. 
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- References No definition available. 
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- Definition Amount of deferred tax liability attributable to taxable temporary differences. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from inventory. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible state and local operating loss carryforwards. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Definition Amount, before allocation of valuation allowance, of deferred tax asset attributable to deductible temporary differences from employee benefits, classified as other. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from accrued liabilities. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Definition Amount, before allocation of valuation allowance, of deferred tax asset attributable to deductible temporary differences from reserves, classified as other. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Definition Amount, after deferred tax asset, of deferred tax liability attributable to taxable differences without jurisdictional netting. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Definition Amount of deferred tax liability attributable to taxable temporary differences from leasing arrangements. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Definition Amount of deferred tax consequences attributable to taxable temporary differences derived from prepaid expenses. No definition available. 
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- Definition Amount of deferred tax liability attributable to taxable temporary differences from property, plant, and equipment. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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