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Goodwill and Intangible Assets - Estimated Future Amortization Expense Related to Intangible Assets (Details)
$ in Millions
Dec. 31, 2020
USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]  
2021 $ 2.9
2022 2.2
2023 2.1
2024 2.1
2025 2.1
Finite-Lived Intangible Assets, Amortization Expense, after Year Five 2.1
Net Balance $ 13.7