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Leases - Operating Lease Liability Maturities (Details) - USD ($)
$ in Millions
Dec. 31, 2021
Dec. 31, 2020
Leases [Abstract]    
2022 $ 3.0  
2023 2.6  
2024 2.2  
2025 1.9  
2026 1.0  
Thereafter 8.7  
Total lease payments 19.4  
Less imputed interest (6.6)  
Total $ 12.8 $ 9.6