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Earnings Per Share - Additional Information (Detail)
3 Months Ended 6 Months Ended
Aug. 04, 2013
Jul. 29, 2012
Aug. 04, 2013
Jul. 29, 2012
Earnings Per Share [Line Items]        
Stock-based awards excluded from the computation of diluted earnings per share 0 1,667,000 133,000 1,600,000