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Share-Based Compensation (Components Of Share-Based Compensation Expense) (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 6 Months Ended
Apr. 15, 2012
Apr. 17, 2011
Apr. 15, 2012
Apr. 17, 2011
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Total share-based compensation expense $ 1,540 $ 2,306 $ 3,562 $ 4,972
Stock Options [Member]
       
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Total share-based compensation expense 785 1,174 1,975 2,686
Performance-Vested Stock Awards [Member]
       
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Total share-based compensation expense 172 471 502 1,209
Nonvested Stock Awards [Member]
       
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Total share-based compensation expense 135 140 315 326
Nonvested Stock Units [Member]
       
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Total share-based compensation expense 293 348 615 578
Deferred Compensation For Non Management Directors [Member]
       
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Total share-based compensation expense $ 155 $ 173 $ 155 $ 173