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Share-Based Compensation - Option Activity (Details) - Options - 2006 Incentive Plan - USD ($)
$ / shares in Units, $ in Thousands
 12 Months Ended
Dec. 29, 2018
Dec. 30, 2017
Dec. 31, 2016
Options      
Outstanding at the beginning of the period (in shares) 665,717    
Granted (in shares) 22,443    
Exercised (in shares) (100,771)    
Forfeited (in shares) (1,408)    
Outstanding at the end of the period (in shares) 585,981 665,717  
Options exercisable at the end of the period (in shares) 469,697    
Vested or expected to vest at the end of the period (in shares) 585,383    
Weighted Average Exercise Price      
Outstanding at the beginning of the period (in dollars per share) $ 24.14    
Granted (in dollars per share) 47.45    
Exercised (in dollars per share) 21.50    
Forfeited (in dollars per share) 30.97    
Outstanding at the end of the period (in dollars per share) 25.48 $ 24.14  
Options exercisable at the end of the period (in dollars per share) 24.02    
Vested or expected to vest at the end of the period (in dollars per share) $ 25.46    
Weighted Average Remaining Contractual Term      
Outstanding at the beginning of the period 3 years 7 months 10 days    
Outstanding at the end of the period 3 years 7 months 10 days    
Options exercisable at the end of the period 3 years 15 days    
Vested or expected to vest at the end of the period 3 years 7 months 10 days    
Aggregate Intrinsic Value      
Outstanding at the beginning of the period (in dollars) $ 13,851    
Exercised (in dollars) 2,955 $ 5,400 $ 700
Forfeited (in dollars) 28    
Outstanding at the end of the period (in dollars) 9,286 $ 13,851  
Options exercisable at the end of the period (in dollars) 7,962    
Vested or expected to vest at the end of the period (in dollars) $ 9,282