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Stock-Based Compensation (Fair Value of Stock Compensation) (Details) (USD $)
3 Months Ended
Dec. 29, 2012
Dec. 31, 2011
Restricted Stock [Member]
   
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]    
Restricted stock awards and units vesting period (in years) 3 years  
Restricted Stock Units (RSUs) [Member]
   
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]    
Restricted stock awards and units vesting period (in years) 3 years  
Employee Stock [Member]
   
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]    
Expected life in years 0 years 6 months 0 years 6 months
Expected volatility 34.80% 49.30%
Risk-free interest rate 0.20% 0.10%
Expected dividends $ 0.01 $ 0
Weighted average fair value per share $ 10.60 $ 14.93
Performance Restricted Stock Units [Member]
   
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]    
Expected volatility 37.90% 41.80%
Risk-free interest rate 0.30% 0.40%
Weighted average fair value per share $ 48.48 $ 71.59
Performance Restricted Stock Units [Member] | Annual vesting
   
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]    
Restricted stock awards and units vesting period (in years) 2 years  
Performance Restricted Stock Units [Member] | Single vest measurement
   
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]    
Restricted stock awards and units vesting period (in years) 3 years