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Share-Based Compensation - Narrative (Details) - USD ($)
$ in Millions
6 Months Ended
Jun. 26, 2020
Jun. 28, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Proceeds from stock options exercised $ 0.0 $ 0.3
2014 Omnibus Share Incentive Plan    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Number of shares issued on contingent right to receive, per RSU or PSU 1  
Restricted Stock Units (RSUs)    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Options, vest in equal installments 4 years  
Restricted Stock Units (RSUs) | Minimum    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Number of units granted (as a percent) 0.00%  
Restricted Stock Units (RSUs) | Maximum    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Number of units granted (as a percent) 100.00%  
Restricted Stock Units (RSUs) | 2014 Omnibus Share Incentive Plan    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Options, percent that vest immediately 20.00%  
Vesting rights percentage at each anniversaries 20.00%  
Performance Shares    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Options, vest in equal installments 3 years  
Immediate Vesting | RSAs    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Vesting rights percentage at each anniversaries 50.00%  
Six-month Anniversary Upon Ceasing to be Member of Board of Directors | RSAs    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Vesting rights percentage at each anniversaries 50.00%  
Award vesting period 6 months