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Fair Value Measurements - Schedule of Significant Unobservable Inputs Used to Value Level 3 Instruments (Details) $ in Thousands | Jun. 30, 2026 USD ($) $ / MMBTU $ / MWh | Dec. 31, 2025 USD ($) $ / MMBTU $ / MWh
--- | --- | ---
Commodity Contracts |  |
Information regarding the entity's internally developed significant unobservable inputs used to value its level 3 instruments |  |
Derivative asset | $ 5 | $ 8,387
Derivative liability | 81,127 | 36,636
Commodity Contracts | Level 3 |  |
Information regarding the entity's internally developed significant unobservable inputs used to value its level 3 instruments |  |
Derivative asset | 268 | 0
Derivative liability | 33,130 | 23,710
Electricity Forward Contract | Level 3 |  |
Information regarding the entity's internally developed significant unobservable inputs used to value its level 3 instruments |  |
Derivative asset | 0 | 0
Derivative liability | $ 23,980 | $ 21,913
Electricity Forward Contract | Minimum | Level 3 |  |
Information regarding the entity's internally developed significant unobservable inputs used to value its level 3 instruments |  |
Derivative liability, measurement input | $ / MWh | 42.50 | 41.51
Derivative asset, measurement input | $ / MWh | 42.50 | 41.51
Electricity Forward Contract | Maximum | Level 3 |  |
Information regarding the entity's internally developed significant unobservable inputs used to value its level 3 instruments |  |
Derivative liability, measurement input | $ / MWh | 91.17 | 149.37
Derivative asset, measurement input | $ / MWh | 91.17 | 149.37
Electricity Forward Contract | Weighted Average | Level 3 |  |
Information regarding the entity's internally developed significant unobservable inputs used to value its level 3 instruments |  |
Derivative liability, measurement input | $ / MWh | 62.82 | 80.20
Derivative asset, measurement input | $ / MWh | 62.82 | 80.20
Natural Gas Forward Contract | Level 3 |  |
Information regarding the entity's internally developed significant unobservable inputs used to value its level 3 instruments |  |
Derivative asset | $ 268 | $ 0
Derivative liability | $ 9,150 | $ 1,797
Natural Gas Forward Contract | Minimum | Level 3 |  |
Information regarding the entity's internally developed significant unobservable inputs used to value its level 3 instruments |  |
Derivative liability, measurement input | $ / MMBTU | (0.59) | (0.07)
Derivative asset, measurement input | $ / MMBTU | (0.59) | (0.07)
Natural Gas Forward Contract | Maximum | Level 3 |  |
Information regarding the entity's internally developed significant unobservable inputs used to value its level 3 instruments |  |
Derivative liability, measurement input | $ / MMBTU | 0.26 | 0.36
Derivative asset, measurement input | $ / MMBTU | 0.26 | 0.36
Natural Gas Forward Contract | Weighted Average | Level 3 |  |
Information regarding the entity's internally developed significant unobservable inputs used to value its level 3 instruments |  |
Derivative liability, measurement input | $ / MMBTU | (0.02) | 0.04
Derivative asset, measurement input | $ / MMBTU | (0.02) | 0.04

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