Liabilities and Restructuring Charges - Components of Other Long Term Liabilities (Detail) - USD ($) $ in Thousands |
Jul. 31, 2020 |
Oct. 31, 2019 |
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|---|---|---|---|---|---|
| Liabilities, Other than Long-term Debt, Noncurrent [Abstract] | |||||
| Deferred compensation liability | $ 269,484 | $ 249,822 | |||
| Other long-term liabilities | 19,927 | 73,903 | |||
| Total | $ 289,411 | $ 323,725 | [1] | ||
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