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Intangible Assets - Estimated Aggregate Amortization Expense (Detail) - USD ($)
$ in Millions
Dec. 31, 2021
Dec. 31, 2020
Goodwill And Intangible Assets Disclosure [Abstract]    
2022 $ 486.8  
2023 461.6  
2024 425.5  
2025 385.6  
2026 346.9  
Thereafter 1,847.6  
Amortizable intangible assets, net $ 3,954.0 $ 2,399.9