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Liabilities and Restructuring Charges - Components of Other Long Term Liabilities (Detail) - USD ($)
$ in Thousands
Jul. 31, 2019
Oct. 31, 2018
Liabilities, Other than Long-term Debt, Noncurrent [Abstract]    
Deferred compensation liability $ 248,510 $ 212,165
Other long-term liabilities 90,418 53,395
Total $ 338,928 $ 265,560