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Derivative Instruments - Narrative (Details) $ in Millions | Jun. 30, 2026 MW contract counterparty | Dec. 31, 2025 MW contract counterparty | Mar. 31, 2025 USD ($) $ / MMBTU
--- | --- | --- | ---
Derivative [Line Items] |  |  |
Number of instruments held | contract | 4 | 4 |
Number of counterparties | counterparty | 2 | 2 |
Derivative, premium paid | $ |  |  | $ (16.2)
Derivative, floor price (in USD per unit) | $ / MMBTU |  |  | 3.00
Counterparty Two |  |  |
Derivative [Line Items] |  |  |
Derivative, nonmonetary notional amount | MW | 600 | 600 |

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