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Stock-Based Compensation (Details 2) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2013
Jan. 01, 2013
Jan. 03, 2012
Stock-based compensation      
Total stock-based compensation $ 14,135 $ 10,838 $ 9,635
Income tax benefit 5,407 4,146 3,685
Total stock-based compensation, net of taxes 8,728 6,692 5,950
Capitalized stock-based compensation 177 255 197
Labor expenses
     
Stock-based compensation      
Total stock-based compensation 4,478 3,445 3,186
Other operating costs and expenses
     
Stock-based compensation      
Total stock-based compensation 195 187 138
General and administrative expenses
     
Stock-based compensation      
Total stock-based compensation $ 9,462 $ 7,206 $ 6,311