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Debt (Schedule of Maturities of Long-term Debt) (Details) - USD ($)
$ in Millions
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Debt Disclosure [Abstract]      
Future amortization of debt issuance costs $ 9.1 $ 6.9 $ 9.3
Long-term Debt, by Maturity [Abstract]      
2020 245.8    
2021 50.2    
2022 146.2    
2023 70.5    
2024 296.9    
Total $ 809.6