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Goodwill and Intangible Assets - Amortization Expense (Details)
$ in Millions
Sep. 30, 2020
USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]  
2020 (remaining) $ 30.8
2021 123.4
2022 123.4
2023 123.4
2024 123.4
Thereafter 631.8
Total $ 1,156.2