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Commitments and Contingencies - Narrative (Details) $ in Millions |  | 3 Months Ended | 12 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | --- | ---
Jan. 29, 2016 USD ($) | Jul. 31, 2017 USD ($) | Oct. 31, 2017 USD ($) | Oct. 31, 2016 USD ($) | Oct. 31, 2015 USD ($) | Aug. 31, 2017 USD ($) | Jan. 28, 2016 USD ($) | Jul. 31, 2015 ft² | Oct. 31, 2014 USD ($)
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |
Total rent expense under operating lease |  |  | $ 6.0 | $ 5.8 | $ 4.4 |  |  |  |
Estimate of loss |  |  |  |  |  | $ 0.4 |  |  |
Selling, general and administrative [Member] |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |
Settlement expenses |  | $ 0.4 |  |  |  |  |  |  |
Indemnification Agreement |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |
Accrued liabilities |  |  | 0.0 |  |  |  |  |  |
Texas [Member] |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |
Annual future lease rent renewed |  |  |  | 0.7 |  |  |  |  |
Limoneira [Member] |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |
Total rent expense under operating lease |  |  | $ 0.3 | $ 0.3 | $ 0.3 |  |  |  |
Annual future lease rent renewed |  |  |  |  |  |  |  |  | $ 0.3
Green Cove LLC |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |
Area of facility (in sq. ft) | ft² |  |  |  |  |  |  |  | 200,000 |
Bank of America [Member] |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |
Due from joint ventures, noncurrent |  |  |  |  |  |  | $ 4.5 |  |
Amount repaid from loan proceeds | $ 4.0 |  |  |  |  |  |  |  |

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