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Share-based Compensation (Details 2) (USD $)
 12 Months Ended
Dec. 31, 2013
Dec. 25, 2012
Dec. 27, 2011
Aggregate Intrinsic Value      
Cash received before tax withholdings from options exercised $ 15,100,000 $ 10,700,000 $ 5,000,000
Excess tax benefit realized from tax deductions associated with options exercised 4,900,000 3,600,000 2,300,000
Stock Options
      
Shares      
Outstanding at the beginning of the period (in shares) 2,258,921    
Granted (in shares) 0 0 0
Forfeited (in shares) (41,624)    
Exercised (in shares) (1,173,859)    
Outstanding at the end of the period (in shares) 1,043,438 2,258,921  
Exercisable at the end of period (in shares) 1,043,438    
Weighted-Average Exercise Price      
Outstanding at the beginning of the period (in dollars per share) $ 13.24    
Forfeited (in dollars per share) $ 9.64    
Exercised (in dollars per share) $ 12.90    
Outstanding at the end of the period (in dollars per share) $ 13.77 $ 13.24  
Exercisable at the end of the period (in dollars per share) $ 13.77    
Weighted-Average Remaining Contractual Term      
Outstanding at the end of the period 2 years 3 months    
Exercisable at the end of the period 2 years 3 months    
Aggregate Intrinsic Value      
Outstanding at the end of the period (in dollars) 14,637,000    
Exercisable at the end of the period (in dollars) 14,637,000    
Intrinsic value of options exercised (in dollars) 11,200,000 8,700,000 3,000,000
Awards vested (in shares) 0    
Total grant date fair value of options vested (in dollars)   $ 200,000 $ 700,000