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Fair Value Measurements - Quantitative Information Regarding Significant Unobservable Inputs (Details) - Significant Unobservable Inputs (Level 3) - Kirk Spread Option Model | Jun. 30, 2026 | Dec. 31, 2025
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Power and natural gas price correlation |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Measurement Input | 0.927 | 0.927
Power and natural gas price correlation | Weighted Average |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Measurement Input | 0.927 | 0.927
Power volatility (non-liquid hours) | Minimum |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Measurement Input | 0.534 | 0.429
Power volatility (non-liquid hours) | Maximum |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Measurement Input | 0.652 | 0.524
Power volatility (non-liquid hours) | Weighted Average |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Measurement Input | 0.593 | 0.477

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