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Share-Based Compensation - Option Activity (Details) - USD ($)
$ / shares in Units, $ in Thousands
 12 Months Ended
Dec. 31, 2016
Jan. 02, 2016
Jan. 03, 2015
Options      
Exercised (in shares) (124,931) (29,288) (20,931)
Options | 2006 Incentive Plan      
Options      
Outstanding at the beginning of the period (in shares) 1,206,778    
Granted (in shares) 32,000    
Exercised (in shares) (124,931)    
Expired (in shares) (168,764)    
Outstanding at the end of the period (in shares) 945,083 1,206,778  
Options exercisable at the end of the period (in shares) 577,963    
Vested or expected to vest at the end of the period (in shares) 939,630    
Weighted Average Exercise Price      
Outstanding at the beginning of the period (in dollars per share) $ 26.36    
Granted (in dollars per share) 30.96    
Exercised (in dollars per share) 22.83    
Expired (in shares) 48.95    
Outstanding at the end of the period (in dollars per share) 22.95 $ 26.36  
Options exercisable at the end of the period (in dollars per share) 22.18    
Vested or expected to vest at the end of the period (in dollars per share) $ 22.94    
Weighted Average Remaining Contractual Term      
Outstanding at the beginning of the period 4 years 1 month 2 days    
Outstanding at the end of the period 4 years 1 month 2 days    
Options exercisable at the end of the period 3 years 3 months 4 days    
Vested or expected to vest at the end of the period 4 years 29 days    
Aggregate Intrinsic Value      
Exercised (in dollars) $ 729 $ 100 $ 100
Outstanding at the end of the period (in dollars) 12,904    
Options exercisable at the end of the period (in dollars) 8,337    
Vested or expected to vest at the end of the period (in dollars) $ 12,835