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Debt and Credit Facilities - Schedule of Debt Maturities (Details) - USD ($)
$ in Millions
Dec. 31, 2019
Dec. 31, 2018
Debt Disclosure [Abstract]    
2020 $ 55.0  
2021 40.0  
2022 60.0  
2023 70.0  
2024 40.0  
2025 and thereafter 95.0  
Total $ 360.0 $ 405.0