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Earnings per Share, Basic and Diluted - Additional Information (Detail)
In Millions, unless otherwise specified
3 Months Ended 6 Months Ended
Aug. 02, 2014
Aug. 03, 2013
Aug. 02, 2014
Aug. 03, 2013
Earnings Per Share [Abstract]        
Total anti-dilutive common stock options not included in the calculation of diluted earnings per share 0.2 0.2 0.2 0.3