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Earning Per Share (Tables)
6 Months Ended
Jun. 25, 2011
Earnings Per Share  
Reconciliation Of The Average Number Of Common Shares Outstanding To Average Number Of Diluted Shares Outstanding
     Twenty Six Weeks Ended      Thirteen Weeks Ended  
     June 25,
2011
     June 26,
2010
     June 25,
2011
     June 26,
2010
 

Average number of common shares outstanding

     47,826         50,165         47,782         50,123   

Incremental shares from assumed exercises of stock options

     81         94         130         92   
                                   

Average number of common shares and common share equivalents outstanding

     47,907         50,259         47,912         50,215