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Stock-Based Compensation - Narrative (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 29, 2018
Sep. 30, 2017
Sep. 29, 2018
Sep. 30, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]        
Pre-tax share-based compensation expense $ 10.9 $ 12.6 $ 34.2 $ 32.0
After-tax share-based compensation expense 8.7 $ 9.0 26.2 $ 23.6
Total unrecognized compensation cost related to non-vested awards $ 91.4   $ 91.4  
Weighted-average period of recognition for unrecognized compensation costs on nonvested awards (in years)     2 years 2 months 6 days  
Time Based Restricted Stock Restricted Units [Member] | 2013 Stock Incentive Plan, as amended [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period     4 years  
Time Based Restricted Stock Restricted Units [Member] | 2015 Non-Employee Director Stock Incentive Plan [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period     12 months  
Performance Based Restricted Stock Restricted Units [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period     3 years  
Period Over Which Earnings Per Share Performance Is Measured Against Specified Targets     3 years