Employee Benefit Plans - Deferred Plan Assets and Liabilities (Detail) - USD ($) $ in Thousands		Oct. 31, 2020	Oct. 31, 2019
Share-based Payment Arrangement [Abstract]
Plan assets recorded in other long-term assets		$ 269,737	$ 249,822
Plan liabilities recorded in other long-term liabilities	[1]	$ 269,737	$ 249,822

[1] Undistributed deferred compensation balances due to participants.