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Goodwill and Intangible Assets - Estimated Amortization Expense (Detail)
$ in Thousands
Oct. 31, 2020
USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]  
Estimated Amortization Expense, 2020 $ 50,576
Estimated Amortization Expense, 2021 46,685
Estimated Amortization Expense, 2022 45,697
Estimated Amortization Expense, 2023 40,815
Estimated Amortization Expense, 2024 $ 39,115