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Fair Value Measurements (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Jul. 31, 2020 | Jul. 31, 2019 | Jul. 31, 2020 | Jul. 31, 2019 | Oct. 31, 2019
Limoneira |  |  |  |  |
Assets at Fair Value: |  |  |  |  |
Realized gain (loss) | $ 200 | $ (5,100) | $ 9,100 | $ 8,200 |
Limoneira | Maximum [Member] |  |  |  |  |
Assets at Fair Value: |  |  |  |  |
Non-equity method investment ownership (as a percent) | 10.00% |  | 10.00% |  |
Fair Value, Measurements, Recurring [Member] |  |  |  |  |
Assets at Fair Value: |  |  |  |  |
Total assets at fair value | $ 22,610 |  | $ 22,610 |  | $ 31,734
Fair Value, Measurements, Recurring [Member] | Limoneira |  |  |  |  |
Assets at Fair Value: |  |  |  |  |
Investment in Limoneira Company | 22,610 |  | 22,610 |  | 31,734
Fair Value, Measurements, Recurring [Member] | Level 1 |  |  |  |  |
Assets at Fair Value: |  |  |  |  |
Total assets at fair value | 22,610 |  | 22,610 |  | 31,734
Fair Value, Measurements, Recurring [Member] | Level 1 | Limoneira |  |  |  |  |
Assets at Fair Value: |  |  |  |  |
Investment in Limoneira Company | $ 22,610 |  | $ 22,610 |  | $ 31,734

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