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Project Assets - Additional Information (Details) $ in Thousands | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
Apr. 30, 2020 USD ($) | Apr. 30, 2019 USD ($) | Apr. 30, 2020 USD ($) ProjectAsset | Apr. 30, 2019 USD ($) | Oct. 31, 2019 USD ($) ProjectAsset
Project Assets [Abstract] |  |  |  |  |
Long-term project assets | $ 153,874 |  | $ 153,874 |  | $ 144,115
Number of project assets | ProjectAsset |  |  | 8 |  | 7
Sale leaseback transaction, net book value | 77,900 |  | $ 77,900 |  | $ 59,200
Project asset depreciation | 2,800 | $ 1,000 | 5,800 | $ 2,100 |
Long-term project assets construction in progress | $ 76,000 |  | $ 76,000 |  | $ 84,900

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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 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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