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Financial Instruments - Additional Information (Detail) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
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Apr. 30, 2017 | Apr. 30, 2016 | Apr. 30, 2017 | Apr. 30, 2016
Derivative Instruments And Hedging Activities Disclosure [Abstract] |  |  |  |
Maturity of foreign currency forward contracts |  |  | 90 days |
Gains (losses) on foreign currency forward contracts | $ (1,687) | $ (564) | $ (1,900) | $ 863
Gains (losses) in fair value of balance sheet positions denominated in foreign currencies | $ 702 | $ 53 | $ 906 | $ (336)

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- Definition Foreign currency forward contracts maturity period maximum. + References No definition available. + Details
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- Definition Amount of the increase (decrease) in fair value of the hedged item in a foreign currency fair value hedge which was recognized in earnings, net of offsets by the gain (loss) on the hedging instrument to the extent that the fair value hedge was determined to be effective. + References No definition available. + Details
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- Definition Aggregate impact of foreign currency derivatives on earnings for the period. Includes impact of foreign currency cash flow hedge ineffectiveness and the ineffectiveness of fair value hedging derivatives and full change in fair value of the foreign currency derivatives not designated 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 -URI http://asc.fasb.org/extlink&oid=64837297&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 4A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5618551-113959 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4D -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5624177-113959 + Details
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