Financial Instruments - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Oct. 31, 2017	Oct. 31, 2016	Oct. 31, 2015
Derivative Instruments And Hedging Activities Disclosure [Abstract]
Maturity of foreign currency forward contracts	90 days
Gains (losses) on foreign currency forward contracts	$ 329	$ 2,317	$ (3,866)
Gains (losses) in fair value of balance sheet positions denominated in foreign currencies	(1,015)	(312)	$ 3,862
Gain (losses) on Derivative Used in Net Investment Hedge, Net of Tax	$ (760)	$ 2,439