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Lease Commitments - Maturity of Lease Liabilities (Details)
$ in Millions
Dec. 31, 2021
USD ($)
Leases [Abstract]  
2022 $ 38.9
2023 36.3
2024 32.0
2025 27.5
2026 17.8
Thereafter 58.8
Total undiscounted lease liabilities 211.3
Present value discounting of operating lease liabilities $ 35.0