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Intangible Assets and Goodwill - Estimated Amortization Expense (Detail) - USD ($)
$ in Thousands
Jan. 31, 2021
Jul. 31, 2020
Goodwill and Intangible Assets Disclosure [Abstract]    
For the remainder of the fiscal year ending July 31, 2021 $ 60,929  
For the fiscal year ending July 31, 2022 125,677  
For the fiscal year ending July 31, 2023 107,038  
For the fiscal year ending July 31, 2024 97,122  
For the fiscal year ending July 31, 2025 88,894  
For the fiscal year ending July 31, 2026 and thereafter 529,771  
Estimated annual amortization expense, total $ 1,009,431 $ 914,724