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Stock-Based Compensation Stock-Based Compensation (Restricted Stok Awards) (Details) (Restricted Stock [Member], USD $)
In Millions, except Share data, unless otherwise specified
12 Months Ended
Dec. 30, 2011
Dec. 31, 2010
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Price Per Share $ 25.14 $ 21.24
Compensation Expense $ 0.7 $ 0.7
Non Employee Directors Plan [Member]
   
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Number of Restricted Stocks Awarded 27,853 32,956