Derivatives (Current and Noncurrent Derivative Assets) (Details) - Commodity Contract - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Derivatives, Fair Value [Line Items]
Commodity derivative assets	$ 210,919	$ 346,670
Commodity derivative liabilities	(147,110)	(213,282)
Cash collateral paid		64,530
Total	88,248	197,918
Derivative Asset, Subject to Master Netting Arrangement, Collateral, Obligation to Return Cash Not Offset	24,439
Commodity derivative assets - current
Derivatives, Fair Value [Line Items]
Commodity derivative assets	201,542	325,762
Commodity derivative liabilities	(47,898)	(94,704)
Cash collateral paid		64,530
Derivative Asset, Subject to Master Netting Arrangement, Collateral, Obligation to Return Cash Not Offset	24,439
Derivative Asset, Fair Value, Amount Offset Against Collateral Including Subject To Master Netting Arrangement	178,083	295,588
Commodity derivative assets - noncurrent
Derivatives, Fair Value [Line Items]
Commodity derivative assets	1,496	1,796
Commodity derivative liabilities	(64)	(149)
Cash collateral paid		0
Derivative Asset, Subject to Master Netting Arrangement, Collateral, Obligation to Return Cash Not Offset	0
Derivative Asset, Fair Value, Amount Offset Against Collateral Including Subject To Master Netting Arrangement	1,432	1,647
Commodity derivative liabilities - current
Derivatives, Fair Value [Line Items]
Commodity derivative assets	7,868	18,426
Commodity derivative liabilities	(98,717)	(116,945)
Cash collateral paid		0
Derivative Asset, Subject to Master Netting Arrangement, Collateral, Obligation to Return Cash Not Offset	0
Derivative Liability, Fair Value, Amount Not Offset Against Collateral Including Before Subject To Master Netting Arrangement	90,849	98,519
Commodity derivative liabilities - noncurrent
Derivatives, Fair Value [Line Items]
Commodity derivative assets	13	686
Commodity derivative liabilities	(431)	(1,484)
Cash collateral paid		0
Derivative Asset, Subject to Master Netting Arrangement, Collateral, Obligation to Return Cash Not Offset	0
Derivative Liability, Fair Value, Amount Not Offset Against Collateral Including Before Subject To Master Netting Arrangement	$ 418	$ 798

Derivative Asset, Fair Value, Amount Offset Against Collateral Including Subject To Master Netting Arrangement

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Derivative Liability, Fair Value, Amount Not Offset Against Collateral Including Before Subject To Master Netting Arrangement

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Amount of obligation to return cash collateral under master netting arrangements that have not been offset against derivative assets.

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Amount of right to receive cash collateral under master netting arrangements that have not been offset against derivative liabilities.

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The net amount as of the balance sheet date of the fair value of derivative assets and derivative liabilities that in accordance with the entity's accounting policy were offset against collateral under a master netting arrangement.

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Fair value, before effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets elected not to be offset. Excludes assets not subject to a master netting arrangement.

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Fair value, before effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities elected not to be offset. Excludes liabilities not subject to a master netting arrangement.

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