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Fair Value Measurements (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Apr. 30, 2021 | Apr. 30, 2020 | Apr. 30, 2021 | Apr. 30, 2020 | Oct. 31, 2020
Limoneira |  |  |  |  |
Assets at Fair Value: |  |  |  |  |
Non-equity method investment ownership (as a percent) | 9.00% |  | 9.00% |  |
Realized gain (loss) | $ 3,500 | $ (10,300) | $ 7,100 | $ (9,300) |
Fair Value, Measurements, Recurring |  |  |  |  |
Assets at Fair Value: |  |  |  |  |
Total assets at fair value | 30,292 |  | 30,292 |  | $ 23,197
Fair Value, Measurements, Recurring | Limoneira |  |  |  |  |
Assets at Fair Value: |  |  |  |  |
Investment in Limoneira Company | 30,292 |  | 30,292 |  | 23,197
Fair Value, Measurements, Recurring | Level 1 |  |  |  |  |
Assets at Fair Value: |  |  |  |  |
Total assets at fair value | 30,292 |  | 30,292 |  | 23,197
Fair Value, Measurements, Recurring | Level 1 | Limoneira |  |  |  |  |
Assets at Fair Value: |  |  |  |  |
Investment in Limoneira Company | $ 30,292 |  | $ 30,292 |  | $ 23,197

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