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Intangible Assets - Future Amortization (Details) - USD ($)
$ in Millions
Mar. 31, 2020
Dec. 31, 2019
Finite-Lived Intangible Assets, Amortization Expense, Maturity Schedule [Abstract]    
Remainder of 2020 $ 10.4  
2021 13.9  
2022 13.9  
2023 13.9  
2024 11.0  
2025 9.5  
Thereafter 88.7  
Total $ 161.3 $ 164.7