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Fair Value Measurements (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Apr. 30, 2020	Apr. 30, 2019	Apr. 30, 2020	Apr. 30, 2019
Limoneira [Member]
Assets at Fair Value:
Realized gain (loss)	$ 10,300	$ (1,400)	$ 9,300	$ 3,100
Limoneira [Member] | 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	$ 22,392		$ 22,392
Fair Value, Measurements, Recurring [Member] | Limoneira [Member]
Assets at Fair Value:
Investment in Limoneira Company	22,392		22,392
Fair Value, Measurements, Recurring [Member] | Level 1
Assets at Fair Value:
Total assets at fair value	22,392		22,392
Fair Value, Measurements, Recurring [Member] | Level 1 | Limoneira [Member]
Assets at Fair Value:
Investment in Limoneira Company	$ 22,392		$ 22,392

X

- Definition

The percentage of ownership of investment, not accounted for under the equity method of accounting.

+ References

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- Definition

Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258

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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 321
-SubTopic 10
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=116654751&loc=SL75117546-209714

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- Definition

Fair value portion of investment securities, including, but not limited to, marketable securities, derivative financial instruments, and investments accounted for under the equity method.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258

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