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Share-Based and Other Compensation - Annual 2019, 2018 and 2017 and December 2018 Time-Based RSU Grants (Details) - USD ($)
$ / shares in Units, $ in Millions
1 Months Ended 2 Months Ended
Feb. 01, 2019
Dec. 27, 2018
Feb. 14, 2018
Jan. 29, 2018
Feb. 24, 2017
Feb. 03, 2017
Feb. 28, 2017
Feb. 28, 2018
Dec. 31, 2019
December 2018 Time-Based RSU Grant [Member] [Member]                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Vesting criteria, one                 50.00%
Vesting criteria, two                 50.00%
Time-Based Restricted Stock Units (RSUs), 2019 Time-Based RSU Grant [Member]                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Fair value RSUs granted $ 10.1                
Fair value per share (in dollars per share) $ 69.89                
Time-Based Restricted Stock Units (RSUs), 2018 Special Time-Based RSU Grant [Member]                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Fair value RSUs granted   $ 18.5              
Fair value per share (in dollars per share)   $ 62.00              
Time-Based Restricted Stock Units (RSUs), 2018 Time-Based RSU Grant [Member]                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Fair value RSUs granted               $ 8.4  
Fair value per share (in dollars per share)     $ 66.46 $ 70.37       $ 70.37  
RSUs granted (in units)     67,818 56,015          
Time-Based Restricted Stock Units (RSUs), 2017 Time-Based RSU Grant [Member]                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Fair value RSUs granted             $ 7.5    
Fair value per share (in dollars per share)         $ 77.16 $ 73.30      
RSUs granted (in units)         57,901 41,119