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Earnings Per Share - 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
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]        
Contingently issuable shares excluded from diluted earnings per share     0.4 0.4
Stock Option Plans
       
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]        
Potential common shares excluded from calculation of diluted earning per share 0.8 1.2 0.5 0.8