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Stock-Based Awards - Other Information (Details) (USD $)
In Millions, except Share data, unless otherwise specified
12 Months Ended
Dec. 30, 2012
Dec. 25, 2011
Dec. 26, 2010
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Stock-based compensation expense $ 5.0 $ 8.1 $ 7.7
Pool of excess tax benefits 21    
Payments under long term incentive plan based on total shareholder return during year 12 4 7
Percentage of payout based on total shareholder return   50.00%  
Unrecognized compensation expense releted to the unvested portion of our stock-based awards $ 4    
Weighted average years to be recognized over 1 year 7 months 6 days    
Stock Option [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Award term 10 years 10 years 10 years
Vesting period 3 years 3 years 3 years
Non-Employee Director Stock Options [Member] | Stock Option [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Award term   10 years 10 years
Vesting period   1 year 1 year
2010 Incentive Plan [Member] | Stock Option [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Award term 10 years    
Vesting period 3 years    
2004 Directors' Plan [Member] | Non-Employee Director Stock Options [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Maximum issuance of shares authorized for directors 500,000    
Annual stock option grant to directors   4,000  
2004 Directors' Plan [Member] | Non-Employee Director Stock Options [Member] | Stock Option [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Award term   10 years  
Vesting period   1 year