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Stock-Based Compensation (Details) (USD $)
In Thousands, except Share data in Millions, unless otherwise specified
12 Months Ended
Jan. 03, 2012
Dec. 28, 2010
Dec. 29, 2009
Apr. 30, 2011
Stock-Based Compensation:        
Shares awarded under share-based compensation plan       4.8
Shares awarded under share-based compensation plan prior to amendment       3.8
Shares available for grant 3.2      
Stock-based compensation        
Stock-based compensation expense $ 9,635 $ 10,913 $ 14,610  
Income tax benefit 3,685 4,139 5,537  
Total stock-based compensation expense, net of tax 5,950 6,774 9,073  
Capitalized stock-based compensation 197 257 473  
Labor expenses
       
Stock-based compensation        
Stock-based compensation expense 3,186 3,205 5,938  
Other operating costs and expenses
       
Stock-based compensation        
Stock-based compensation expense 138 165 246  
General and administrative expenses
       
Stock-based compensation        
Stock-based compensation expense $ 6,311 $ 7,543 $ 8,426