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Share-Based Compensation Share-Based Compensation - Narrative (Details) - USD ($)
$ in Millions
6 Months Ended
Jun. 30, 2021
Jul. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Unrecognized compensation cost related to nonvested stock options   $ 6.2
Weighted average period for recognition of unrecognized compensation cost   1 year 9 months 18 days
Stock awards/units    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Unrecognized compensation cost related to nonvested stock awards/units   $ 35.1
Equity instruments granted (in shares) 695,566  
Performance-based units    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Equity instruments granted (in shares)   242,898
Performance-based units | Minimum | Vesting, Tranches After Initial Vesting Period    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Award vesting period   2 years
Performance-based units | Maximum | Vesting, Tranches After Initial Vesting Period    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Award vesting period   3 years
Target performance units    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Award vesting period   3 years
Market-based units | Minimum    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Target vesting percentage   0.00%
Market-based units | Maximum    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Target vesting percentage   150.00%
Market Based Shares - TSR    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Award vesting period   3 years
Market Based Shares - Stock Price Levels    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Award vesting period   4 years