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Description of the business (Details) $ / shares in Units, $ in Millions	3 Months Ended
	Jan. 31, 2019 USD ($) segment $ / shares shares	Jan. 31, 2018 USD ($)	Nov. 01, 2018 USD ($)	Oct. 31, 2018 $ / shares
Number of reportable segments | segment	3
Limoneira [Member]
Sale of securities | shares	51,271
Realized gain (loss)	$ (0.1)
Investment share price (in dollars per share) | $ / shares	$ 22.03			$ 24.65
Investment shares held (in shares) | shares	1,677,299
Unrealized gains (losses) recorded	$ (4.4)	$ (3.1)
ASU 2016-01
Increase to equity			$ 12.1

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Amount after tax of increase (decrease) to equity or (increase) decrease to net assets, resulting from the cumulative effect adjustment of a new accounting principle applied in the period of adoption.

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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).

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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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Balance held at close of period in number of shares.

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Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

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