Financial Assets and Liabilities - Ineffective Portion and Portion Excluded from Effectiveness Testing of Derivative Hedge Gains (Losses) (Detail) (Foreign Exchange Contracts, USD $) In Thousands, unless otherwise specified	12 Months Ended
	Oct. 31, 2014		Oct. 31, 2013		Oct. 31, 2012
Foreign Exchange Contracts
Financial Assets And Liabilities [Line Items]
Amount of gain (loss) recognized in income statement on derivatives (ineffective portion)	$ (302)	[1]	$ 293	[1]	$ 38	[1]
Amount of gain (loss) recognized in income statement on derivatives (excluded from effectiveness testing)	$ 3,259	[2]	$ 2,518	[2]	$ 1,321	[2]

[1] The ineffective portion includes forecast inaccuracies.

[2] The portion excluded from effectiveness testing includes the discount earned or premium paid for the contracts.