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Earnings Per Share - Schedule of Weighted-Average Shares Used for Earnings Per Share (Detail)
3 Months Ended
May 03, 2014
May 04, 2013
Earnings Per Share [Abstract]    
Weighted-average shares-basic 39,152,923 38,076,026
Effect of dilutive stock-based awards 1,634,803  
Weighted-average shares-diluted 40,787,726 38,076,026