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Earnings Per Share - Additional Information (Detail)
3 Months Ended
May 02, 2015
May 03, 2014
Earnings Per Share [Abstract]    
Stock options not included in the computation of diluted earnings per share 0us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount 414,000us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount