Liabilities and Restructuring Charges - Components of Other Long Term Liabilities (Detail) - USD ($) $ in Thousands	Jul. 31, 2017	Oct. 31, 2016
Liabilities, Other than Long-term Debt, Noncurrent [Abstract]
Deferred compensation liability	$ 191,013	$ 163,185
Other long-term liabilities	56,001	47,670
Total	$ 247,014	$ 210,855