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Description of the business (Details) $ / shares in Units, $ in Millions	3 Months Ended	6 Months Ended
	Apr. 30, 2019 USD ($) $ / shares shares	Apr. 30, 2019 USD ($) segment $ / shares shares	Jan. 31, 2019 $ / shares	Nov. 01, 2018 USD ($)	Oct. 31, 2018 $ / shares
Number of reportable segments | segment		3
Limoneira [Member]
Sale of securities | shares		51,271
Loss on sale of investments		$ 0.1
Realized loss		3.0
Realized gain (loss)	$ 1.4	$ (3.1)
Investment share price (in dollars per share) | $ / shares	$ 22.84	$ 22.84	$ 22.03		$ 24.65
Investment shares held (in shares) | shares	1,677,299	1,677,299
ASU 2016-01
Increase to equity				$ 12.1

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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 realized 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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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.

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