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Goodwill and Intangible Assets - Schedule Of Estimated Future Amortization Expense Of Intangible Assets (Details) - USD ($)
$ in Millions
Dec. 31, 2020
Dec. 31, 2019
Goodwill and Intangible Assets Disclosure [Abstract]    
2019 $ 21.3  
2020 18.1  
2021 13.4  
2022 11.4  
2023 9.8  
2026 and thereafter 3.4  
Net Carrying Amount $ 77.4 $ 112.1