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Stock-based Compensation Expense Textual (Details) - USD ($)
$ / shares in Units, $ in Millions
3 Months Ended 6 Months Ended
Jun. 28, 2019
Jun. 29, 2018
Jun. 28, 2019
Jun. 29, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Stock-based compensation expense $ 3.5 $ 2.7 $ 6.2 $ 5.2
Document Period End Date     Jun. 28, 2019  
Unearned Compensation $ 13.6   $ 13.6  
Stock Appreciation Rights (SARs)        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number of shares granted in period     73,461  
Weighted average exercise price on SARs granted in period     $ 58.30  
Grant date fair value per unit (in usd per share)     17.76  
Performance Shares        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Grant date fair value per unit (in usd per share)     $ 69.84  
Vesting period     3 years  
Stock Compensation Plan [Member] | Restricted Stock Units (RSUs)        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number of shares granted in period     63,665  
Grant date fair value per unit (in usd per share)     $ 58.30  
Vesting period     3 years  
Director Equity Plan [Domain] | Restricted Stock Units (RSUs)        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number of shares granted in period     11,048  
Grant date fair value per unit (in usd per share)     $ 68.79  
Vesting period     1 year