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Stockholders' Equity and Stock Compensation Plans (Details) (USD $)
In Millions, except Share data, unless otherwise specified
3 Months Ended
Dec. 30, 2012
Jan. 01, 2012
Stockholders' Equity and Stock Compensation Plans    
Stock-based compensation expense $ 2.5 $ 2.9
Options granted (in shares) 279,075  
Restricted stock award    
Exercise price of stock options granted (in dollars per share) $ 24.26  
Weighted-average fair value of stock options granted (in dollars per share) $ 8.74  
Performance-based restricted stock | Non-employee directors and executive officers
   
Restricted stock award    
Granted (in shares) 108,350  
Granted, fair value (in dollars per share) $ 24.26  
Vesting period 3 years  
Time-based restricted stock units | Non-employee directors, executive officers and employees
   
Restricted stock award    
Granted (in shares) 224,055  
Granted, fair value (in dollars per share) $ 24.26  
Vesting period 4 years