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Goodwill and Intangible Assets - Estimated Aggregate Amortization Expense (Details)
$ in Millions
Oct. 31, 2021
USD ($)
Estimated prospective aggregate amortization expense:  
Fiscal 2021 $ 30.9
Fiscal 2022 116.7
Fiscal 2023 107.4
Fiscal 2024 99.2
Fiscal 2025 $ 92.9