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, 2022	Jan. 31, 2021
Financial Assets and Liabilities [Line Items]
Total revenue	$ 1,270,255	$ 970,321
Operating Expenses	666,235	613,974
Net income	313,687	162,345
Foreign Exchange Contracts
Financial Assets and Liabilities [Line Items]
Total revenue	(816)	(163)
Operating Expenses	(769)	4,256
Net income	(1,585)	4,093
Foreign Exchange Contracts | Amount of gain (loss) reclassified from OCI (effective portion)
Financial Assets and Liabilities [Line Items]
Total revenue	(571)	113
Operating Expenses	(274)	2,613
Net income	$ (845)	$ 2,726