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Common Shares and Share-based Compensation - Additional Information (Details) - USD ($)
$ / shares in Units, shares in Thousands
3 Months Ended 6 Months Ended
Jun. 28, 2019
Jun. 29, 2018
Jun. 28, 2019
Jun. 29, 2018
Dec. 31, 2018
Oct. 31, 2018
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]            
Repurchase of common stock     $ 3,339,000 $ 1,929,000    
Share-based compensation expense recognized $ 2,378,000 $ 1,736,000 5,105,000 3,780,000    
Selling, General and Administrative Expenses            
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]            
Share-based compensation expense recognized $ 2,089,000 $ 1,574,000 $ 4,620,000 3,498,000    
Deferred Stock Units            
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]            
Number of outstanding shares 187   187   179  
Restricted Stock Units and Deferred Stock Units | 2010 Incentive Award Plan            
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]            
Total fair value of RSUs, DSUs and PSUs vested     $ 12,700,000      
Restricted Stock Units and Deferred Stock Units | Board of Directors | Selling, General and Administrative Expenses            
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]            
Share-based compensation expense recognized     $ 900,000 $ 500,000    
Restricted Stock Units (RSUs) | 2010 Incentive Award Plan | Minimum            
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]            
Vesting period     0 years      
Restricted Stock Units (RSUs) | 2010 Incentive Award Plan | Maximum            
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]            
Vesting period     5 years      
EPS Performance-based Restricted Stock Units | 2010 Incentive Award Plan            
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]            
Vesting period     3 years      
EPS Performance-based Restricted Stock Units | 2010 Incentive Award Plan | Minimum            
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]            
Range of percentage of shares to be issued upon settlement following vesting of target number of shares     0.00%      
EPS Performance-based Restricted Stock Units | 2010 Incentive Award Plan | Maximum            
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]            
Range of percentage of shares to be issued upon settlement following vesting of target number of shares     200.00%      
TSR Performance-based Restricted Stock Units | 2010 Incentive Award Plan            
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]            
Vesting period     3 years      
TSR Performance-based Restricted Stock Units | 2010 Incentive Award Plan | Minimum            
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]            
Range of percentage of shares to be issued upon settlement following vesting of target number of shares     0.00%      
TSR Performance-based Restricted Stock Units | 2010 Incentive Award Plan | Maximum            
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]            
Range of percentage of shares to be issued upon settlement following vesting of target number of shares     200.00%      
Performance Stock Units | 2010 Incentive Award Plan            
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]            
Total fair value of RSUs, DSUs and PSUs vested     $ 5,000,000.0      
Range of percentage of shares to be issued upon settlement following vesting of target number of shares     200.00%      
2018 Repurchase Plan            
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]            
Common stock repurchase program authorized amount           $ 25,000,000.0
Shares repurchased     39      
Repurchase of common stock     $ 3,300,000      
Shares repurchased, average cost per share     $ 84.75