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Leases And Other Commitments - Maturity of Lease Liabilities (Details) - USD ($)
$ in Millions
Dec. 31, 2021
Dec. 31, 2020
Operating Leases    
2022 $ 25.7  
2023 25.2  
2024 23.5  
2025 22.5  
2026 22.3  
Thereafter 17.2  
Total future lease cost 136.4  
Less: Imputed interest (17.3)  
Present value of future payments 119.1  
Less: Current portion (20.5) $ (16.5)
Long-term portion 98.6 101.8
Finance Leases    
2022 6.3  
2023 6.4  
2024 5.4  
2025 4.8  
2026 4.9  
Thereafter 64.0  
Total future lease cost 91.8  
Less: Imputed interest (31.5)  
Present value of future payments 60.3  
Less: Current portion (3.3)  
Finance lease obligations $ 57.0 $ 54.0