Financial Assets and Liabilities - Fair Values of Derivative Instrument Designated and Non-Designated as Hedging Instruments in Unaudited Condensed Consolidated Balance Sheet (Detail) (USD $) In Thousands, unless otherwise specified	Apr. 30, 2015	Oct. 31, 2014
Designated As Hedging Instrument | Other current assets
Financial Assets and Liabilities [Line Items]
Fair values of derivative instruments, assets	$ 12,586	$ 9,299
Designated As Hedging Instrument | Accrued liabilities
Financial Assets and Liabilities [Line Items]
Fair values of derivative instruments, liabilities	18,971	11,656
Non-Designated Hedging Instrument | Other current assets
Financial Assets and Liabilities [Line Items]
Fair values of derivative instruments, assets	1,081	1
Non-Designated Hedging Instrument | Accrued liabilities
Financial Assets and Liabilities [Line Items]
Fair values of derivative instruments, liabilities	$ 132	$ 99