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Commitments and Contingencies (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2023 | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Commitments and Contingencies |  |  |  |
Purchase obligations and commitments |  | $ 5,100 |  |
Environmental expenses |  | $ 2,500 | $ 4,600 | $ 3,000
Environmental Remediation Expense, before Recovery, Statement of Income or Comprehensive Income [Extensible Enumeration] |  | Direct Operating Costs | Direct Operating Costs | Direct Operating Costs
Accrued insurance proceeds and third-party receivables |  | $ 6,000 | $ 5,700 |
Insurance proceeds and third-party receivables included in Other Receivables |  | 5,149 | 4,064 |
Insurance proceeds and third-party receivables included in Other Assets |  | 900 | $ 1,600 |
Timing of future payments |  |  |  |
2025 |  | 14,608 |  |
2026 |  | 19,153 |  |
2027 |  | 9,211 |  |
2028 |  | 4,547 |  |
2029 |  | 1,700 |  |
Total |  | 49,219 |  |
Delivery Commitment |  |  |  |
Commitments and Contingencies |  |  |  |
Remaining commitment agreement term | 7 years |  |  |
Financial commitment | $ 28,000 |  |  |
Remaining minimum commitment |  | 22,400 |  |
Timing of future payments |  |  |  |
2025 |  | 4,100 |  |
2026 |  | 4,100 |  |
2027 |  | 4,100 |  |
2028 |  | 4,100 |  |
2029 |  | 4,100 |  |
Thereafter |  | 1,800 |  |
Purchase Obligations |  |  |  |
Timing of future payments |  |  |  |
2025 |  | 5,089 |  |
Total |  | 5,089 |  |
Surface Use and Compensation |  |  |  |
Timing of future payments |  |  |  |
2025 |  | 3,714 |  |
2026 |  | 11,300 |  |
2027 |  | 1,350 |  |
2028 |  | 1,400 |  |
2029 |  | 1,700 |  |
Total |  | 19,464 |  |
Fixed price power purchase contract |  |  |  |
Timing of future payments |  |  |  |
2025 |  | 5,805 |  |
2026 |  | 7,853 |  |
2027 |  | 7,861 |  |
2028 |  | 3,147 |  |
Total |  | $ 24,666 |  |

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- Definition Amount due in settlement of a claim for reimbursement from an insurance company when the Company has suffered a loss covered under an insurance policy and the recorded amount of the asset for third-party recoveries related to environmental remediation obligations. + References No definition available. + Details
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