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Derivatives - Narrative (Details) | 12 Months Ended |  |
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Dec. 31, 2024 DKK (kr) Boe MMBTU MWh t | Dec. 31, 2024 USD ($) | Dec. 31, 2023 USD ($)
Supply Commitment [Line Items] |  |  |
Restricted cash | $ |  | $ 0 | $ 0
LME forward financial sales contracts |  |  |
Supply Commitment [Line Items] |  |  |
Open position to offset fixed prices | 32,000 |  |
Fixed to Variable Midwest Premium Swap |  |  |
Supply Commitment [Line Items] |  |  |
Open position to offset fixed prices | 32,000 |  |
Fixed to Floating Swap |  |  |
Supply Commitment [Line Items] |  |  |
Open position to offset fixed prices | 0 |  |
USD ISK Forward Swap |  |  |
Supply Commitment [Line Items] |  |  |
Derivative, forward contracts | kr | kr 0 |  |
Henry Hub Natural Gas Price Swaps |  |  |
Supply Commitment [Line Items] |  |  |
Derivative liability, energy | MMBTU | 0 |  |
HFO Price Swaps |  |  |
Supply Commitment [Line Items] |  |  |
Derivative liability, energy | Boe | 295,000 |  |
Indiana Hub Power Price Swaps |  |  |
Supply Commitment [Line Items] |  |  |
Derivative liability, energy | MWh | 591,192 |  |

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