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Project Assets (Tables) | 6 Months Ended
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Apr. 30, 2021
Project Assets [Abstract] |
Summary of Project Assets | Project assets as of April 30, 2021 and October 31, 2020 consisted of the following (in thousands):
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | April 30, | ​ | October 31, | ​ | Estimated
​ |  | 2021 |  | 2020 |  | Useful Life
Project Assets - Operating | ​ | $ | 125,464 | ​ | $ | 99,351 | ​ | 5-20 years
Project Assets - Construction in progress | ​ | ​ | 97,911 | ​ | ​ | 91,276 | ​ | 7-20 years
​ | ​ | ​ | 223,375 | ​ | ​ | 190,627 | ​ | ​
Accumulated depreciation | ​ | ​ | (36,133) | ​ | ​ | (28,818) | ​ | ​
Project Assets, net | ​ | $ | 187,242 | ​ | $ | 161,809 | ​ | ​

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