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Debt - Schedule of Total Debt (Details) - USD ($)
$ in Millions
Jun. 30, 2024
Dec. 31, 2023
Sep. 25, 2018
Debt Instrument [Line Items]      
Debt issuance costs $ (20.9) $ (24.3)  
Total debt 1,136.4 1,104.6  
Less: Current debt (2.7) (2.8)  
Total long-term debt 1,133.7 1,101.8  
Revolving Credit Facility | Revolving facility - U.S. dollar borrowings | Credit Facility      
Debt Instrument [Line Items]      
Long-term debt, gross 290.0 260.0  
Term Loan facility | Term loan A facility | Credit Facility      
Debt Instrument [Line Items]      
Long-term debt, gross 84.3 84.3  
Term Loan facility | Term loan B facility | Credit Facility      
Debt Instrument [Line Items]      
Long-term debt, gross 160.5 160.5  
Term Loan facility | Delayed draw term loan | Credit Facility      
Debt Instrument [Line Items]      
Long-term debt, gross 273.2 273.2  
Unsecured Debt      
Debt Instrument [Line Items]      
Decrease in fair value $ 5.4 4.9  
Unsecured Debt | 6.875% Senior Unsecured Notes Due 2026      
Debt Instrument [Line Items]      
Interest rate (percent) 6.875%   6.875%
Discount $ 2.7 3.2  
Long-term debt, gross 341.9 341.9  
German loan agreement | German loan agreement      
Debt Instrument [Line Items]      
Long-term debt, gross $ 7.4 $ 9.0