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Liabilities and Restructuring Charges - Components of Accounts Payable and Accrued Liabilities (Detail) - USD ($)
$ in Thousands
Jan. 31, 2021
Oct. 31, 2020
Payables and Accruals [Abstract]    
Payroll and related benefits $ 311,983 $ 492,626
Other accrued liabilities 85,567 101,035
Accounts payable 25,378 30,003
Total $ 422,928 $ 623,664