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Share-Based Compensation (Details) - USD ($)
$ / shares in Units, $ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2024
Jun. 30, 2023
Jun. 30, 2024
Jun. 30, 2023
Dec. 31, 2023
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Number of shares authorized for grant (in shares) 1,452,390   1,452,390    
Costs for share-based payment arrangements $ 16.9 $ 2.6 $ 22.4 $ 5.6  
Unamortized share-based compensation expense 56.1   $ 56.1    
Weighted average period over which unrecognized compensation cost is expected to be recognized     2 years 1 month 6 days    
Restricted Stock Units          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Units granted (in shares)     30,000 590,188  
Weighted-average fair values per share (in dollars per share)     $ 12.68 $ 8.66  
Cash-settled Performance Stock Units          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Units granted (in shares)     645,180 901,541  
Weighted-average fair values per share (in dollars per share)     $ 19.17 $ 11.18  
Cash-settled Service-Based Units          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Units granted (in shares)     673,855 90,000  
Weighted-average fair values per share (in dollars per share)     $ 12.75 $ 8.98  
Restricted Stock Units, Guaranteed Minimum Payouts          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Liabilities recognized for restricted stock grants $ 20.7   $ 20.7   $ 4.9
Cash used to settle liabilities     $ 2.9 $ 0.2  
Unrestricted Stock Units          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Units granted (in shares)     73,716 302,112  
Weighted-average fair values per share (in dollars per share)     $ 20.89 $ 5.66