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Fair Value Measurements - CarbonFree (Details) - USD ($) $ in Thousands | 3 Months Ended |
--- | --- | ---
Mar. 31, 2023 | Mar. 31, 2022 | Dec. 31, 2022
Investments in and Advances to Affiliates, at Fair Value [Roll Forward] |  |  |
Balance at beginning of period | $ 14,286 |  |
Change in fair value of embedded option | 214 | $ 2,411 |
Other comprehensive income (loss) | 121 | 0 |
Balance at end of period | 13,902 |  |
Investments | 13,902 |  | $ 14,286
(Level 3) | CarbonFree |  |  |
Investments in and Advances to Affiliates, at Fair Value [Roll Forward] |  |  |
Investments | 5,939 |  | $ 6,139
CarbonFree |  |  |
Investments in and Advances to Affiliates, at Fair Value [Roll Forward] |  |  |
Balance at beginning of period | 6,139 | $ 5,000 |
Change in fair value of embedded option | (321) |  |
Balance at end of period | 5,939 |  |
CarbonFree | Unrealized Gain (Loss) on Investment |  |  |
Investments in and Advances to Affiliates, at Fair Value [Roll Forward] |  |  |
Other comprehensive income (loss) | $ 121 |  |

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