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Equity - Narrative (Details) - USD ($)
shares in Millions, $ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Derivative Instruments        
Stock issued or granted during period [Abstract]        
Other comprehensive income (loss), tax, portion attributable to parent $ 0.3 $ 0.8 $ 1.0 $ 3.6
Stock Options        
Stock issued or granted during period [Abstract]        
Stock options granted (in shares)     0.3  
Restricted Stock Units        
Stock issued or granted during period [Abstract]        
Restricted stock units granted (in shares)     0.5  
Award vesting period     3 years  
Tranche One | Stock Options        
Stock issued or granted during period [Abstract]        
Award vesting rights, percentage     33.33%  
Tranche One | Restricted Stock Units        
Stock issued or granted during period [Abstract]        
Award vesting rights, percentage     33.33%  
Tranche Two | Stock Options        
Stock issued or granted during period [Abstract]        
Award vesting rights, percentage     33.33%  
Tranche Two | Restricted Stock Units        
Stock issued or granted during period [Abstract]        
Award vesting rights, percentage     33.33%  
Tranche Three | Stock Options        
Stock issued or granted during period [Abstract]        
Award vesting rights, percentage     33.33%  
Tranche Three | Restricted Stock Units        
Stock issued or granted during period [Abstract]        
Award vesting rights, percentage     33.33%