Derivative Instruments - Assets and liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Commodity derivatives
Commodity derivative assets
Gross amounts on balance sheet	$ 3,048	$ 406
Gross amounts offset on balance sheet	(8)	(406)
Total asset derivatives	3,040
Commodity derivative liabilities
Gross amounts on balance sheet	(33,777)	(48,406)
Gross amounts offset on balance sheet	8	406
Total liability derivatives	(33,769)	(48,000)
Embedded derivatives
Commodity derivative assets
Gross amounts on balance sheet	4,173	10,745
Total asset derivatives	$ 4,173	$ 10,745

Fair value, after effect of master netting arrangement, of financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and contract can be net settled by means outside contract or delivery of asset. Includes derivative subject to master netting arrangement not elected or qualified to offset. Excludes derivative not subject to master netting arrangement or similar agreement.

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