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Leases - Maturity Analysis for Operating Lease Liabilities (Details) - USD ($)
$ in Millions
Dec. 31, 2021
Dec. 31, 2020
Leases [Abstract]    
2022 $ 29.7  
2023 20.5  
2024 15.4  
2025 13.1  
2026 9.5  
Thereafter 7.2  
Undiscounted cash flows 95.4  
Less imputed interest 10.0  
Total operating lease liabilities $ 85.4 $ 85.9