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Basis of Presentation and Significant Accounting Policies - Marketable Securities (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Oct. 31, 2020	Oct. 31, 2019	Oct. 31, 2018
Significant Accounting Policies [Line Items]
Unrealized and realized net loss on Limoneira shares	$ (8,537)	$ (9,722)
Limoneira
Significant Accounting Policies [Line Items]
Limoneira's stock price	$ 13.83	$ 18.92	$ 24.65
Limoneira
Significant Accounting Policies [Line Items]
Number of securities sold		51,271
Loss on sale of investments		$ 100
Investment shares held (in shares)	1,677,299
Unrealized and realized net loss on Limoneira shares	$ (8,500)	$ (9,600)
Limoneira | Maximum
Significant Accounting Policies [Line Items]
Non-equity method investment ownership (as a percent)	10.00%

X

- Definition

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

+ References

No definition available.

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X

- Definition

The number of shares held as investment sold during the period.

+ References

No definition available.

+ Details

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- Definition

Significant Accounting Policies [Line Items]

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- Definition

Amount of unrealized and realized gain (loss) on 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=120269885&loc=SL75117546-209714

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- Definition

Balance held at close of period in number of shares.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 946
-SubTopic 210
-Section 50
-Paragraph 6
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=99383244&loc=d3e12121-115841

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 946
-SubTopic 320
-Section S99
-Paragraph 3
-Subparagraph (SX 210.12-12B(Column B))
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- Definition

The difference between the carrying value and the sale price of an investment. A loss would be recognized when the sale price of the investment is less than the carrying value of the investment. This element refers to the Loss included in earnings and not to the cash proceeds of the sale.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03(b)(9)(a))
-URI http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227

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-Section S99
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- Definition

Price of a single share of a number of saleable stocks of a company.

+ References

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