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Accumulated Other Comprehensive (Loss) Income (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Increase (Decrease) in Stockholders' Equity      
Beginning balance $ 2,939.0 $ 2,684.3 $ 1,625.2
Other comprehensive income (loss) (165.9) 67.9  
Amounts reclassified from accumulated other comprehensive (loss) income, net of income taxes   0.9  
Net current-period other comprehensive Income (loss), net of taxes (165.9) 68.8  
Ending balance 2,995.2 2,939.0 2,684.3
Net settlement loss 1.1    
Accumulated other comprehensive (loss) income      
Increase (Decrease) in Stockholders' Equity      
Beginning balance 10.8 (58.0) (21.7)
Ending balance (155.1) 10.8 (58.0)
Foreign currency translation adjustments      
Increase (Decrease) in Stockholders' Equity      
Beginning balance 13.2 (50.5)  
Other comprehensive income (loss) (166.8) 63.7  
Amounts reclassified from accumulated other comprehensive (loss) income, net of income taxes   0.0  
Net current-period other comprehensive Income (loss), net of taxes (166.8) 63.7  
Ending balance (153.6) 13.2 (50.5)
Pension liability adjustments, net of taxes      
Increase (Decrease) in Stockholders' Equity      
Beginning balance (2.4) (7.5)  
Other comprehensive income (loss) 0.9 4.2  
Amounts reclassified from accumulated other comprehensive (loss) income, net of income taxes   0.9  
Net current-period other comprehensive Income (loss), net of taxes 0.9 5.1  
Ending balance $ (1.5) $ (2.4) $ (7.5)