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Project Assets - Additional Information (Details) $ in Thousands |  |  | 12 Months Ended
--- | --- | --- | ---
Aug. 28, 2018 USD ($) | Apr. 05, 2018 USD ($) | Oct. 31, 2018 USD ($) ProjectAsset | Oct. 31, 2017 USD ($) ProjectAsset | Oct. 31, 2016 USD ($)
Project Assets [Abstract] |  |  |  |  |
Long-term project assets |  |  | $ 99,600 | $ 73,001 |
Number of project assets | ProjectAsset |  |  | 5 | 5 |
Sale leaseback transaction, net book value |  |  | $ 28,600 | $ 32,100 |
Long-term project assets construction in progress |  |  | 71,000 | 40,900 |
Project revenue | $ 9,200 | $ 10,800 |  |  |
Reduction in project assets relating to sale | $ 8,000 | $ 9,800 |  |  |
Impairment on project asset |  |  | 500 | 0 | $ 0
Depreciation expense |  |  | $ 4,100 | $ 4,100 | $ 700

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- Definition Depreciation expense on project assets. + References No definition available. + Details
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- Definition Impairment on termination of project. + References No definition available. + Details
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- Definition Long-term project assets. + References No definition available. + Details
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- Definition Long term project assets construction in progress. + References No definition available. + Details
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- Definition Number of project assets. + References No definition available. + Details
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- Definition Project assets [Abstract] + References No definition available. + Details
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- Definition Reduction in project assets relating to sale. + References No definition available. + Details
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- Definition Sales revenue project assets. + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition The net book value of the asset(s) sold in connection with the sale of the property to another party and lease back to the seller. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 40 -Section 55 -Paragraph 51 -URI http://asc.fasb.org/extlink&oid=82846721&loc=d3e51840-112757 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 40 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=77888430&loc=SL77919786-209982 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 40 -Section 55 -Paragraph 52 -URI http://asc.fasb.org/extlink&oid=82846721&loc=d3e51843-112757 Reference 4: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 40 -Section 55 -Paragraph 50 -URI http://asc.fasb.org/extlink&oid=82846721&loc=d3e51831-112757 + Details
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