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v3.23.3

Nature of Operations and Basis of Presentation (Narrative) (Details) $ in Thousands |  | 3 Months Ended | 9 Months Ended
--- | --- | --- | ---
May 02, 2022 USD ($) | Sep. 30, 2023 USD ($) earn-outArrangement | Mar. 31, 2023 USD ($) | Dec. 31, 2022 USD ($) | Sep. 30, 2022 USD ($) | Sep. 30, 2023 USD ($) earn-outArrangement segment | Sep. 30, 2022 USD ($)
Long-term Purchase Commitment [Line Items] |  |  |  |  |  |  |
Number of operating segments | segment |  |  |  |  |  | 3 |
Gain on contract termination |  | $ 0 |  |  | $ 0 | $ 0 | $ 14,000
Income from equity method investments |  | $ 0 |  |  | 2,156 | 0 | 2,156
Proceeds from the sale of private company equity units |  |  |  |  |  | $ 1,153 | 0
Cash received |  |  | $ 2,200 |  |  |  |
Estimated asset retirement obligation |  |  | 1,900 |  |  |  |
Gain on the assumption of third-party asset retirement obligation |  |  | $ 300 |  |  |  |
Caddo Creek |  |  |  |  |  |  |
Long-term Purchase Commitment [Line Items] |  |  |  |  |  |  |
Membership interest |  |  | 100.00% |  |  |  |
Private Equity Funds |  |  |  |  |  |  |
Long-term Purchase Commitment [Line Items] |  |  |  |  |  |  |
Income from equity method investments |  |  |  |  | $ 2,200 |  |
HLCP Ethanol Holdco, LLC |  |  |  |  |  |  |
Long-term Purchase Commitment [Line Items] |  |  |  |  |  |  |
Proceeds from the sale of private company equity units |  |  |  | $ 18,600 |  |  |
Proceeds and associated gain from the post-closing purchase price adjustment, as a result of the sale of equity method investment |  |  | $ 1,200 |  |  |  |
Number of contingent earn-out arrangements | earn-outArrangement |  | 2 |  |  |  | 2 |
Earn-out, project term |  |  |  |  |  | 4 years |
HLCP Ethanol Holdco, LLC | Minimum |  |  |  |  |  |  |
Long-term Purchase Commitment [Line Items] |  |  |  |  |  |  |
Earn-out payments |  | $ 0 |  |  |  | $ 0 |
HLCP Ethanol Holdco, LLC | Maximum |  |  |  |  |  |  |
Long-term Purchase Commitment [Line Items] |  |  |  |  |  |  |
Earn-out payments |  | $ 12,900 |  |  |  | $ 12,900 |
Coal Mining | Falkirk |  |  |  |  |  |  |
Long-term Purchase Commitment [Line Items] |  |  |  |  |  |  |
Total gain on contract termination |  |  |  |  |  |  | $ 30,900
Gain on contract termination | $ 14,000 |  |  |  |  |  |
Fair value gained from contract termination | 4,100 |  |  |  |  |  |
Fair value of privately-held company | 12,800 |  |  |  |  |  |
Investment | $ 5,000 |  |  |  |  |  |

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