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Derivatives and Fair Value Measurements - Long-term debt (Details) - USD ($)
$ in Millions
Sep. 30, 2022
Dec. 31, 2021
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Net carrying amount $ 869.2 $ 1,137.8
Carrying amount    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Total debt at par value 891.0 1,173.2
Less: Unamortized debt issuance costs and original issue discount (21.8) (35.4)
Net carrying amount 869.2 1,137.8
Estimated fair value    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Estimated fair value $ 1,034.0 $ 1,136.5