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Fair Value Measurements (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Jan. 31, 2020 | Jan. 31, 2019
Limoneira [Member] |  |
Assets at Fair Value: |  |
Realized gain (loss) | $ 1,000 | $ (4,500)
Limoneira [Member] | Maximum [Member] |  |
Assets at Fair Value: |  |
Non-equity method investment ownership (as a percent) | 10.00% |
Fair Value, Measurements, Recurring [Member] |  |
Assets at Fair Value: |  |
Total assets at fair value | $ 32,741 |
Fair Value, Measurements, Recurring [Member] | Limoneira [Member] |  |
Assets at Fair Value: |  |
Investment in Limoneira Company | 32,741 |
Fair Value, Measurements, Recurring [Member] | Level 1 |  |
Assets at Fair Value: |  |
Total assets at fair value | 32,741 |
Fair Value, Measurements, Recurring [Member] | Level 1 | Limoneira [Member] |  |
Assets at Fair Value: |  |
Investment in Limoneira Company | $ 32,741 |

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