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Reconciliation of Number of Shares Outstanding for Basic and Diluted Earning Per Share (Parenthetical) (Detail)
In Thousands, unless otherwise specified
3 Months Ended 6 Months Ended
Aug. 03, 2013
Aug. 03, 2013
Weighted Average Number of Shares Outstanding [Line Items]    
Common stock equivalents - stock options and restricted stock, excludes anti-dilutive options 231 273