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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, unless otherwise specified | 3 Months Ended | 9 Months Ended
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Jul. 31, 2014 | Jul. 31, 2013 | Jul. 31, 2014 | Jul. 31, 2013
Financial Assets and Liabilities [Line Items] |  |  |  |
Amount of gain (loss) recognized in OCI on derivatives (effective portion) | $ (855) | $ (2,264) | $ 1,617 | $ 1,536
Amount of gain (loss) reclassified from OCI (effective portion) | 2,540 | 3,741 | 4,973 | 5,471
Foreign Exchange Contracts | Revenue |  |  |  |
Financial Assets and Liabilities [Line Items] |  |  |  |
Amount of gain (loss) recognized in OCI on derivatives (effective portion) | (40) | (158) | 3,324 | 2,701
Amount of gain (loss) reclassified from OCI (effective portion) | 1,563 | 3,771 | 3,237 | 6,325
Foreign Exchange Contracts | Operating Expenses |  |  |  |
Financial Assets and Liabilities [Line Items] |  |  |  |
Amount of gain (loss) recognized in OCI on derivatives (effective portion) | (815) | (2,106) | (1,707) | (1,165)
Amount of gain (loss) reclassified from OCI (effective portion) | $ 977 | $ (30) | $ 1,736 | $ (854)

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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=7476318&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=7476318&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=7476318&loc=SL5624171-113959 + Details
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