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Goodwill and Other Intangible Assets (Schedule of Future Amortization Expense) (Details) - USD ($)
$ in Millions
Dec. 31, 2020
Dec. 31, 2019
Goodwill and Intangible Assets Disclosure [Abstract]    
2021 $ 2.0  
2022 2.0  
2023 2.0  
2024 1.9  
2025 1.5  
Thereafter 24.4  
Total $ 33.8 $ 34.7