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EARNINGS PER SHARE (Details)
In Thousands, unless otherwise specified
3 Months Ended
Oct. 29, 2011
Oct. 30, 2010
Reconciliation of the basic and diluted number of shares used in computing earnings per share:    
Basic weighted average shares outstanding 48,594 44,771
Net effect of dilutive stock awards based upon the treasury stock method 295 330
Diluted weighted average shares outstanding 48,889 45,101
Anti-dilutive share-based payment awards excluded from the computation of diluted earnings per share 78,627 303,847