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Share-based Compensation, Restricted Stock and PSU (Details) - USD ($)
$ / shares in Units, $ in Thousands
12 Months Ended
Jan. 08, 2020
Dec. 31, 2019
Dec. 25, 2018
Dec. 26, 2017
Dec. 27, 2016
Dec. 31, 2015
RSUs            
Share-based Compensation            
Number of common shares that a holder would receive upon satisfaction of the vesting requirement (in shares)   1        
Shares            
Outstanding at the beginning of the period (in shares)   824,945        
Granted (in shares)   561,191        
Forfeited (in shares)   (74,483)        
Vested (in shares)   (475,226)        
Outstanding at the end of period (in shares)   836,427 824,945      
Weighted-Average Grant Date Fair Value            
Outstanding at the beginning of the period (in dollars per share)   $ 53.51        
Granted (in dollars per share)   57.84        
Forfeited (in dollars per share)   56.75        
Vested (in dollars per share)   55.13        
Outstanding at the end of the period (in dollars per share)   $ 55.20 $ 53.51      
Weighted-Average Remaining Contractual Term (years)            
Weighted-Average Remaining Contractual Term   1 year 1 month 6 days        
Aggregate Intrinsic Value            
Outstanding at the end of the period (in dollars)   $ 47,110        
Unrecognized compensation cost            
Unrecognized compensation cost of unvested stock awards (in dollars)   $ 20,800        
Expected weighted-average period of recognition of unrecognized compensation cost of unvested awards   1 year 1 month 6 days        
Share-based Compensation, other disclosures            
Intrinsic value of awards vested (in dollars)   $ 27,800 $ 32,100 $ 23,400    
Excess tax benefit recognized within the income tax provision   $ 300 $ 1,900 $ 1,600    
RSUs | Minimum            
Share-based Compensation, other disclosures            
Vesting period   1 year        
RSUs | Maximum            
Share-based Compensation, other disclosures            
Vesting period   5 years        
PSUs            
Share-based Compensation            
Number of common shares that a holder would receive upon meeting a performance obligation and vesting requirement (in shares)   1        
Shares            
Outstanding at the beginning of the period (in shares)   90,000        
Granted (in shares) 77,000 117,000        
Incremental Performance Shares (in shares) 18,946 52,169        
Forfeited (in shares)   (40,000)        
Vested (in shares) (95,946) (142,169)        
Outstanding at the end of period (in shares)   77,000 90,000      
Weighted-Average Grant Date Fair Value            
Outstanding at the beginning of the period (in dollars per share)   $ 54.18        
Granted (in dollars per share)   61.86        
Incremental Performance Shares (in dollars per share)   54.18        
Forfeited (in dollars per share)   61.86        
Vested (in dollars per share)   54.18        
Outstanding at the end of the period (in dollars per share)   $ 61.86 $ 54.18      
Weighted-Average Remaining Contractual Term (years)            
Weighted-Average Remaining Contractual Term   1 month 6 days        
Aggregate Intrinsic Value            
Outstanding at the end of the period (in dollars)   $ 4,337        
Unrecognized compensation cost            
Unrecognized compensation cost of unvested stock awards (in dollars)   $ 100        
Expected weighted-average period of recognition of unrecognized compensation cost of unvested awards   1 month 6 days        
Share-based Compensation, other disclosures            
Target percentage relating to shares granted (as a percent)   100.00%        
Vesting period   1 year 1 year 1 year 1 year 1 year
Intrinsic value of awards vested (in dollars)   $ 8,800 $ 8,900 $ 8,600    
Excess tax benefit recognized within the income tax provision   $ 0 $ 700 $ 800