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Income Taxes - Additional Information (Details)
3 Months Ended 12 Months Ended
May 02, 2015
Jan. 31, 2015
Income Tax Disclosure [Abstract]    
Effective income tax rate 38.50%us-gaap_EffectiveIncomeTaxRateContinuingOperations 38.50%us-gaap_EffectiveIncomeTaxRateContinuingOperations