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Employee Benefit Plans - Expected Benefit Payments (Details)
$ in Millions
Dec. 31, 2020
USD ($)
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Abstract]  
2021 $ 7.0
2022 10.6
2023 14.0
2024 15.8
2025 17.9
Five years thereafter 114.3
Total $ 179.6