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Stockholders' Equity and Stock Compensation Plans (Details) (USD $)
In Millions, except Share data, unless otherwise specified
3 Months Ended 6 Months Ended 3 Months Ended 6 Months Ended 3 Months Ended 6 Months Ended 3 Months Ended
Apr. 01, 2012
Apr. 03, 2011
Apr. 01, 2012
Apr. 03, 2011
Apr. 01, 2012
Minimum
Apr. 01, 2012
Minimum
Apr. 01, 2012
Maximum
Apr. 01, 2012
Maximum
Apr. 01, 2012
Performance-based restricted stock
Directors and executive officers
Jan. 01, 2012
Performance-based restricted stock
Directors and executive officers
Apr. 01, 2012
Time-based restricted stock units
Employees
Jan. 01, 2012
Time-based restricted stock units
Employees
Stockholders' Equity and Stock Compensation Plans                        
Stock-based compensation expense $ 2.7 $ 2.5 $ 5.6 $ 5.3                
Options granted (in shares) 51,000   458,249                  
Restricted stock award                        
Granted (in shares)                   105,567   181,348
Granted, fair value (in dollars per share)                   $ 22.53   $ 22.53
Vesting period (in years)                 3 years   4 years  
Exercise price of stock options granted (in dollars per share)         $ 22.95 $ 22.53 $ 25.27 $ 25.27        
Weighted-average fair value of stock options granted (in dollars per share) $ 8.95   $ 8.10