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Energy Assets, Net - Additional Information (Details) - USD ($) $ in Thousands | 3 Months Ended |
--- | --- | ---
Mar. 31, 2021 | Mar. 31, 2020 | Dec. 31, 2020
Business Acquisition [Line Items] |  |  |
Cost of revenues | $ 9,686 | $ 9,299 |
Capitalized interest | 2,238 | 862 |
ARO assets, net | 2,032 |  | $ 1,468
ARO liabilities, current | 6 |  | 86
ARO liabilities, non-current | 2,251 |  | 1,561
Total ARO liabilities | 2,257 |  | $ 1,647
Depreciation expense of ARO assets | 833 | 833 |
Accretion expense of ARO liabilities | 24 | 21 |
ARO Asset |  |  |
Business Acquisition [Line Items] |  |  |
Depreciation expense of ARO assets | $ 23 | $ 19 |

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