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Stock-Based Compensation, Restricted Stock Awards (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Millions
12 Months Ended
Dec. 31, 2016
Dec. 26, 2015
Dec. 27, 2014
Stock Options [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Compensation for stock awards not yet recognized $ 1.4    
Compensation recognition period 2 years 3 months 18 days    
Fair value of options vested $ 0.3 $ 0.8 $ 1.0
Options outstanding [Roll Forward]      
Beginning balance (in shares) 1,198    
Granted (in shares) 24    
Exercised (in shares) (178)    
Forfeited (in shares) (10)    
Ending balance (in shares) 1,034 1,198  
Weighted average exercise price [Roll Forward]      
Beginning balance (in dollars per share) $ 20.59    
Granted (in dollars per share) 30.86    
Exercised (in dollars per share) 17.61    
Forfeited (in dollars per share) 30.79    
Ending balance (in dollars per share) $ 21.24 $ 20.59  
Restricted Stock [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Aggregate intrinsic value $ 28.4    
Compensation for stock awards not yet recognized $ 15.9    
Compensation recognition period 3 years 4 months 24 days    
Fair value of options vested $ 4.7 $ 4.8 $ 4.2
Restricted stock [Roll Forward]      
Beginning balance (in shares) 705    
Granted (in shares) 265    
Exercised (in shares) (188)    
Forfeited (in shares) (73)    
Ending balance (in shares) 709 705  
Weighted average grant date fair value [Abstract]      
Beginning balance (in dollars per share) $ 28.08    
Granted (in dollars per share) 34.04 $ 32.54 $ 28.80
Exercised (in dollars per share) 25.23    
Forfeited (in dollars per share) 28.53    
Ending balance (in dollars per share) $ 31.02 $ 28.08