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Goodwill and Other Intangible Assets - Estimated Amortization Expense of Intangible Assets (Detail) - USD ($)
$ in Millions
Dec. 31, 2021
Dec. 31, 2020
Goodwill And Intangible Assets Disclosure [Abstract]    
2022 $ 34.1  
2023 33.8  
2024 33.6  
2025 33.4  
2026 31.9  
Thereafter 862.2  
Net Balance $ 1,029.0 $ 472.0