Derivative Instruments - Fair value (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Fair value of derivative instruments
Current portion of fair value of derivative assets	$ 5,175	$ 1,900
Noncurrent portion of fair value of derivative assets	5,570	9,844
Current portion of fair value of derivative liabilities	15,236	97,765
Noncurrent portion of fair value of derivative liabilities	32,764	345,280
Derivatives not designated as hedges for accounting purposes
Fair value of derivative instruments
Total asset derivatives	10,745	11,744
Total liability derivatives	48,000	443,045
Net derivatives liability	(37,255)	(431,301)
Derivatives not designated as hedges for accounting purposes | Commodity derivatives
Fair value of derivative instruments
Current portion of fair value of derivative liabilities	15,236	97,765
Noncurrent portion of fair value of derivative liabilities	32,764	345,280
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	3,000	28,000
Noncurrent portion of fair value of derivative liabilities	2,000	19,000
Total liability derivatives	5,000	47,000
Derivatives not designated as hedges for accounting purposes | Embedded derivatives
Fair value of derivative instruments
Current portion of fair value of derivative assets	5,175	1,900
Noncurrent portion of fair value of derivative assets	$ 5,570	$ 9,844