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Fair Value Measurements (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Oct. 31, 2019	Oct. 31, 2018	Oct. 31, 2017
Assets at Fair Value:
Unrealized investment gain		$ 2,247	$ 6,326
Limoneira [Member]
Assets at Fair Value:
Limoneira's stock price	$ 18.92	$ 24.65	$ 23.35
Limoneira [Member]
Assets at Fair Value:
Number of securities sold	51,271
Loss on sale of investments	$ 100
Investment shares held (in shares)	1,677,299
Unrealized gains (losses) recorded	$ 9,600	$ 2,200	$ 6,300
Unrealized investment gain		$ 1,700	$ 3,900
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	$ 31,734
Fair Value, Measurements, Recurring [Member] | Limoneira [Member]
Assets at Fair Value:
Investment in Limoneira Company	31,734
Fair Value, Measurements, Recurring [Member] | Level 1 [Member]
Assets at Fair Value:
Total assets at fair value	31,734
Fair Value, Measurements, Recurring [Member] | Level 1 [Member] | Limoneira [Member]
Assets at Fair Value:
Investment in Limoneira Company	$ 31,734

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Amount of unrealized gain (loss) on investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

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