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Goodwill and Intangible Assets - Future Amortization Expense (Details) - USD ($)
$ in Millions
Dec. 31, 2021
Dec. 31, 2020
Future Amortization Expense    
2022 $ 40.8  
2023 40.8  
2024 40.8  
2025 40.8  
2026 40.8  
Thereafter 200.1  
Total, net, amortizable $ 404.1 $ 571.7