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Debt and Other Obligations - Future Maturities (Details)
$ in Millions
Jun. 30, 2019
USD ($)
Debt Disclosure [Abstract]  
remainder of 2019 $ 89.4
2020 216.1
2021 285.8
2022 164.3
2023 303.1
2024 and beyond 1,184.8
Total debt principal payments $ 2,243.5