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Stock-Based Compensation Plans (Details Textual) (USD $)
In Millions, except Share data, unless otherwise specified
3 Months Ended 9 Months Ended
Sep. 30, 2012
Apr. 01, 2012
Oct. 02, 2011
Sep. 30, 2012
Oct. 02, 2011
Stock-Based Compensation Plans (Textual) [Abstract]          
Stock option compensation expense $ 2.3   $ 1.5 $ 5.9 $ 4.3
Expected stock option compensation expense       $ 8.7  
Vesting period over which employee stock option grants are evenly expensed       3 years  
Period of historical stock price corresponded to the expected term of the option       6 years  
Period used for the exchange traded option included the longest dated options       3 months  
Grant date fair value of stock options granted       $ 23.90 $ 18.81
Removal of restrictions from stock of restricted stock performance period   32,599      
Forfeited Shares related Restricted Stock performance period   6,605