Derivative financial instruments - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jul. 31, 2023	Jul. 31, 2022	Jul. 31, 2023	Jul. 31, 2022
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Maturity of foreign currency forward contracts			90 days
Gains (losses) on foreign currency forward contracts	$ (93)	$ 15,181	$ 12,086	$ 2,503
Change in unrealized gain (loss) on foreign currency derivative instruments	(885)	$ (14,436)	(19,710)	$ (394)
Other Comprehensive Income (Loss), Net Investment Hedge, Net of Tax	$ 1,144		$ (2,467)