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Financial Assets and Liabilities - Ineffective Portion and Portion Excluded from Effectiveness Testing of Derivative Hedge Gains (Losses) (Detail) - Foreign Exchange Contracts - USD ($)
$ in Thousands
 12 Months Ended
Oct. 31, 2015
Oct. 31, 2014
Oct. 31, 2013
Financial Assets And Liabilities [Line Items]      
Amount of gain (loss) recognized in income statement on derivatives (ineffective portion) [1] $ 878 $ (302) $ 293
Amount of gain (loss) recognized in income statement on derivatives (excluded from effectiveness testing) [2] $ 3,704 $ 3,259 $ 2,518
[1] The ineffective portion includes forecast inaccuracies.
[2] The portion excluded from effectiveness testing includes the discount earned or premium paid for the contracts.