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Intangible Assets - Estimated Aggregate Amortization Expense (Detail)
$ in Millions
Jun. 30, 2020
USD ($)
Goodwill And Intangible Assets Disclosure [Abstract]  
2020 (remaining six months) $ 178.7
2021 337.8
2022 312.3
2023 287.6
2024 252.9
Thereafter 856.7
Total $ 2,226.0