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Fair Value Measurements - Financial Assets and Liabilities Measured on Recurring and Non-Recurring Basis (Parenthetical) (Detail) - USD ($) $ / shares in Units, $ in Thousands | 12 Months Ended
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Oct. 31, 2015 | Oct. 31, 2014 | Oct. 31, 2013
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Unrealized Gain (Loss) on Investments | $ 16,940 | $ 1,175 | $ (6,690)
Limoneira |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Limoneira's stock price | $ 15.86 | $ 25.66 | $ 26.34
Unrealized Gain (Loss) on Investments | $ 10,300 | $ 700 | $ 4,000
Fair Value, Measurements, Recurring [Member] | Limoneira |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Percentage of outstanding shares of Limoneira's shares owned | 12.00% |  |
Limoneira's stock price | $ 15.86 | $ 25.66 |
Unrealized Gain (Loss) on Investments | $ (16,900) | $ (1,200) | $ (6,700)

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- Definition The net change in the difference between the fair value and the carrying value, or in the comparative fair values, of investments, not including unrealized gains or losses on securities separately or otherwise categorized as trading, available-for-sale, or held-to-maturity, held at each balance sheet date and included in earnings for the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3602-108585 + Details
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