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Derivatives - Narrative (Details)	12 Months Ended
	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

X

- Definition

Nominal energy measure used to calculate payments on a derivative instrument.

+ References

No definition available.

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- Definition

Nominal mass used to calculate payments on a derivative instrument.

+ References

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- Definition

Nominal or face amount used to calculate payment on derivative.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 815
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 1B
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480434/815-10-50-1B

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 815
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 1A
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480434/815-10-50-1A

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- Definition

Amount of cash restricted as to withdrawal or usage. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 944
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(2))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478777/944-210-S99-1

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(1))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 230
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 8
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482913/230-10-50-8

Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 942
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(1)(a))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478546/942-210-S99-1

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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