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Basis of Presentation and Significant Accounting Policies - Comprehensive Income (Details) - USD ($) $ / shares in Units, $ in Thousands | 12 Months Ended
--- | ---
Oct. 31, 2019 | Oct. 31, 2018 | Oct. 31, 2017
Significant Accounting Policies [Line Items] |  |  |
Unrealized Gain (Loss) on Investments |  | $ 2,247 | $ 6,326
Unrealized and realized net loss on Limoneira shares | $ (9,722) |  |
Limoneira [Member] |  |  |
Significant Accounting Policies [Line Items] |  |  |
Share Price | $ 18.92 | $ 24.65 | $ 23.35
Limoneira [Member] |  |  |
Significant Accounting Policies [Line Items] |  |  |
Unrealized Gain (Loss) on Investments |  | $ 1,700 | $ 3,900
Investment shares held (in shares) | 1,677,299 |  |
Unrealized and realized net loss on Limoneira shares | $ (9,600) |  |

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