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Financial Assets and Liabilities - Unaudited Condensed Consolidated Statement of Operations Location and Amount of Gains and Losses on Derivative Instrument Fair Values for Designated Hedge Instruments, Net of Tax (Detail) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Apr. 30, 2016 | Apr. 30, 2015 | Apr. 30, 2016 | Apr. 30, 2015
Financial Assets and Liabilities [Line Items] |  |  |  |
Amount of gain (loss) recognized in OCI on derivatives (effective portion) | $ 3,140 | $ (1,330) | $ (9,618) | $ (14,159)
Amount of gain (loss) reclassified from OCI (effective portion) | (5,197) | (6,371) | (8,913) | (7,427)
Foreign Exchange Contracts | Revenues |  |  |  |
Financial Assets and Liabilities [Line Items] |  |  |  |
Amount of gain (loss) recognized in OCI on derivatives (effective portion) | (6,182) | 374 | (7,673) | 3,340
Amount of gain (loss) reclassified from OCI (effective portion) | (1,429) | 26 | (1,217) | 2,406
Foreign Exchange Contracts | Operating expenses |  |  |  |
Financial Assets and Liabilities [Line Items] |  |  |  |
Amount of gain (loss) recognized in OCI on derivatives (effective portion) | 9,322 | (1,704) | (1,945) | (17,499)
Amount of gain (loss) reclassified from OCI (effective portion) | $ (3,768) | $ (6,397) | $ (7,696) | $ (9,833)

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- Definition The effective portion of net gain (loss) reclassified from accumulated other comprehensive income into income on derivative instruments designated and qualifying as hedging instruments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=56946850&loc=SL5624171-113959 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4D -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=56946850&loc=SL5624177-113959 + Details
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- Definition The effective portion of gains and losses (net) on derivative instruments designated and qualifying as hedging instruments that was recognized in other comprehensive income during the current period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=56946850&loc=SL5624171-113959 + Details
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