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Share-based Compensation (Tables)
12 Months Ended
Dec. 27, 2011
Share-based Compensation.  
Summary of allocation of share-based compensation expense

 

 

 
  Fiscal Year Ended  
 
  December 27,
2011
  December 28,
2010
  December 29,
2009
 

Labor expense

  $ 3,905   $ 3,364   $ 2,836  

General and administrative expense

    6,620     4,322     4,657  
               

Total share-based compensation expense

  $ 10,525   $ 7,686   $ 7,493  
               
Summary of stock option activity

 

 

 
  Shares   Weighted-
Average Exercise
Price
  Weighted-Average
Remaining Contractual
Term (years)
  Aggregate
Intrinsic Value
 

Outstanding at December 28, 2010

    3,996,512   $ 11.87              

Granted

                     

Forfeited

    (32,466 )   15.36              

Exercised

    (477,404 )   10.53              
                         

Outstanding at December 27, 2011

    3,486,642   $ 12.02     3.60   $ 12,224  
                   

Exercisable at December 27, 2011

    3,460,585   $ 12.01     3.59   $ 12,155  
                   
Summary of restricted stock unit activity

 

 

 
  Shares   Weighted-
Average Grant
Date Fair Value
 

Outstanding at December 28, 2010

    1,205,410   $ 11.71  

Granted

    792,612     16.14  

Forfeited

    (138,150 )   16.05  

Vested

    (673,392 )   12.23  
             

Outstanding at December 27, 2011

    1,186,480   $ 13.71