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Sechedule Of Restricted Stock Outstanding - (Tables)
3 Months Ended
Oct. 27, 2012
Stock Based Compensation [Abstract]  
Schedule Of Changes In Restricted Stock Outstanding
    Weighted Average
 Number of  Grant Date Fair
 Shares  Value Per Share
Restricted stock awards at January 28, 2012461,341 $21.44
Granted 110,397  28.23
Vested(113,492)  18.83
Forfeited or expired(8,020)  23.54
Restricted stock awards at October 27, 2012450,226 $23.73