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	3 Months Ended
	Jan. 31, 2015		Jan. 31, 2014
Foreign Exchange Contracts
Financial Assets and Liabilities [Line Items]
Amount of gain (loss) recognized in income statement on derivatives (ineffective portion)	$ 740	[1]	$ 119	[1]
Amount of gain (loss) recognized in income statement on derivatives (excluded from effectiveness testing)	$ 1,072	[2]	$ 1,594	[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.