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Goodwill and Other Intangible Assets, Net - Amortization Expense Expected for Next Five Years (Details) - USD ($)
$ in Millions
Sep. 30, 2020
Dec. 31, 2019
Goodwill and Intangible Assets Disclosure [Abstract]    
2020 (remaining) $ 0.7  
2021 2.2  
2022 1.7  
2023 1.2  
2024 1.1  
Thereafter 3.5  
Net Book Value $ 10.4 $ 13.2