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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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