Fair values as of the balance sheet date of the net amount of all assets and liabilities resulting from contracts that meet the criteria of being accounted for as derivative instruments.

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Derivative Instruments (Details) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
Derivative Instruments (Details) $ in Thousands	Jun. 30, 2025 USD ($)	Jun. 30, 2024 USD ($)	Jun. 30, 2025 USD ($) MMBTU	Jun. 30, 2024 USD ($)	Dec. 31, 2024 USD ($) MMBTU
Derivative [Line Items]
Gain (loss) on derivatives			$ (415)	$ 0
Derivative assets (liabilities), at fair value, net	$ (1,400)		$ (1,400)		$ (1,800)
Not Designated as Hedging Instrument \| Natural Gas \| Swap
Derivative [Line Items]
Derivative, nonmonetary notional amount, energy measure \| MMBTU			2,750,000		5,500,000
Not Designated as Hedging Instrument \| Natural Gas \| Commodity Contract
Derivative [Line Items]
Gain (loss) on derivatives	(400)	$ 0	$ (900)	0
Unrealized gain (loss) on derivatives	$ 1,800	$ 0	$ (400)	$ 0