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Earnings Per Share - Additional Information (Detail)
3 Months Ended 6 Months Ended
Aug. 03, 2013
Jul. 28, 2012
Aug. 03, 2013
Jul. 28, 2012
Earnings Per Share [Abstract]        
Number of antidilutive stock options not included in computation of diluted earnings per share 1,700,000 1,600,000 565,000 1,600,000