Financial Assets and Liabilities - Unaudited Condensed Consolidated Statement of Operations Location and Amount of Gains and Losses on Derivative Instrument Fair Values for Designated Hedge Instruments, Net of Tax (Detail) - USD ($) $ in Thousands	3 Months Ended
	Jan. 31, 2023	Jan. 31, 2022
Financial Assets and Liabilities [Line Items]
Total revenue	$ 1,361,340	$ 1,270,255
Operating Expenses	821,054	666,235
Net income	271,536	313,687
Foreign Exchange Contracts | Amount of  gains (losses) recognized in OCI on derivatives (effective portion)
Financial Assets and Liabilities [Line Items]
Total revenue	5,267	(816)
Operating Expenses	36,845	(769)
Net income	42,112	(1,585)
Foreign Exchange Contracts | Amount of gains (losses) reclassified from OCI (effective portion)
Financial Assets and Liabilities [Line Items]
Total revenue	(3,967)	(571)
Operating Expenses	(4,390)	(274)
Net income	$ (8,357)	$ (845)