Derivative Instruments - Fair value (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Fair value of derivative instruments
Current portion of fair value of derivative assets	$ 578	$ 757
Noncurrent portion of fair value of derivative assets	7,058	14,369
Current portion of fair value of derivative liabilities	773,357	559,851
Noncurrent portion of fair value of derivative liabilities	393,139	181,806
Commodity derivatives
Fair value of derivative instruments
Total liability derivatives	1,166,496	741,657
Embedded derivatives
Fair value of derivative instruments
Total asset derivatives	7,636	15,126
Derivatives not designated as hedges for accounting purposes
Fair value of derivative instruments
Total asset derivatives	7,636	15,126
Total liability derivatives	1,166,496	741,657
Net derivatives assets (liabilities)	(1,158,860)	(726,531)
Derivatives not designated as hedges for accounting purposes \| Commodity derivatives
Fair value of derivative instruments
Current portion of fair value of derivative liabilities	773,357	559,851
Noncurrent portion of fair value of derivative liabilities	393,139	181,806
Derivatives not designated as hedges for accounting purposes \| Commodity derivatives \| VIE, Martica
Fair value of derivative instruments
Current portion of fair value of derivative liabilities	53,000	31,000
Noncurrent portion of fair value of derivative liabilities	35,000	24,000
Total liability derivatives	88,000	55,000
Derivatives not designated as hedges for accounting purposes \| Embedded derivatives
Fair value of derivative instruments
Current portion of fair value of derivative assets	578	757
Noncurrent portion of fair value of derivative assets	$ 7,058	$ 14,369

Fair value, after the 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 not subject to a master netting arrangement and not elected to be offset.

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