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Income Taxes - Additional Information (Detail)
3 Months Ended
May 02, 2015
May 03, 2014
Income Tax Disclosure [Abstract]    
Income tax expense as percentage of pre-tax income 38.00%us-gaap_EffectiveIncomeTaxRateContinuingOperations 39.10%us-gaap_EffectiveIncomeTaxRateContinuingOperations