Financial Assets and Liabilities - Income Statement Location and Amount of Gains and Losses on Derivative Instrument Fair Values for Designated Hedge Instruments, Net of Tax (Detail) - USD ($) $ in Thousands	12 Months Ended
	Oct. 31, 2017	Oct. 31, 2016	Oct. 31, 2015
Financial Assets And Liabilities [Line Items]
Amount of gain (loss) recognized in OCI on derivatives (effective portion)	$ 20,928	$ (25,839)	$ (18,623)
Amount of gain (loss) reclassified from OCI (effective portion)	(3,564)	(20,710)	(14,923)
Foreign Exchange Contracts | Revenues
Financial Assets And Liabilities [Line Items]
Amount of gain (loss) recognized in OCI on derivatives (effective portion)	7,582	(14,580)	3,982
Amount of gain (loss) reclassified from OCI (effective portion)	(2,759)	(8,585)	9,270
Foreign Exchange Contracts | Operating expenses
Financial Assets And Liabilities [Line Items]
Amount of gain (loss) recognized in OCI on derivatives (effective portion)	13,346	(11,259)	(22,605)
Amount of gain (loss) reclassified from OCI (effective portion)	$ (805)	$ (12,125)	$ (24,193)