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Project Assets - Additional Information (Details) $ in Thousands | 3 Months Ended | 6 Months Ended | 12 Months Ended | 18 Months Ended
--- | --- | --- | --- | ---
Apr. 30, 2022 USD ($) | Apr. 30, 2022 USD ($) project MW | Oct. 31, 2021 USD ($) project | Apr. 30, 2022 USD ($)
Project Assets [Line Items] |  |  |  |
Number of project assets | project |  | 10 | 9 |
Total number of projects | project |  | 3 |  |
Long-term project assets construction in progress | $ 98,800 | $ 98,800 | $ 126,800 | $ 98,800
Impairment of property, plant and equipment |  | 976 |  |
Impairment charges |  | 7,200 | 2,800 | 10,000
Long Term Project Assets | 239,864 | 239,864 | 223,277 | 239,864
Power Purchase Agreement |  |  |  |
Project Assets [Line Items] |  |  |  |
Sale leaseback transaction, net book value | 141,100 | 141,100 | 96,400 | 141,100
Toyota |  |  |  |
Project Assets [Line Items] |  |  |  |
Long Term Project Assets | 20,700 | $ 20,700 |  | $ 20,700
Toyota Project [Member] |  |  |  |
Project Assets [Line Items] |  |  |  |
Power capacity under construction phase | MW |  | 2.3 |  |
Impairment charges | $ 4,400 | $ 7,200 | $ 2,800 |

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