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Goodwill and Identifiable Intangible Assets, net - Remaining Estimated Future Amortization Expense (Details) - USD ($)
$ in Millions
Mar. 31, 2020
Dec. 31, 2019
Year    
Remainder of 2020 $ 28.6  
2021 27.1  
2022 20.3  
2023 14.6  
2024 13.8  
Thereafter 62.6  
Net $ 167.0 $ 173.2