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Share-Based Compensation - Schedule of Share-Based Payment Arrangement Activity Expensed (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]    
Share-based compensation expense, before tax $ 7.0 $ 14.2
Income tax benefit (1.7) (3.4)
Share-based compensation expense, after tax 5.3 10.8
Restricted stock units    
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]    
Share-based compensation expense, before tax 3.1 4.8
Performance based restricted share unit awards    
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]    
Share-based compensation expense, before tax 3.9 8.3
Cash-settled restricted stock    
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]    
Share-based compensation expense, before tax $ 0.0 $ 1.1