Derivative Instruments - Fair value (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Fair value of derivative instruments
Current portion of fair value of derivative assets	$ 6,579	$ 5,175
Noncurrent portion of fair value of derivative assets	3,929	5,570
Current portion of fair value of derivative liabilities	14,148	15,236
Noncurrent portion of fair value of derivative liabilities	25,538	32,764
Derivatives not designated as hedges for accounting purposes
Fair value of derivative instruments
Total asset derivatives	10,508	10,745
Total liability derivatives	39,686	48,000
Net derivatives liability	(29,178)	(37,255)
Derivatives not designated as hedges for accounting purposes | Commodity derivatives
Fair value of derivative instruments
Current portion of fair value of derivative liabilities	14,148	15,236
Noncurrent portion of fair value of derivative liabilities	25,538	32,764
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	2,000	3,000
Noncurrent portion of fair value of derivative liabilities		2,000
Total liability derivatives		5,000
Derivatives not designated as hedges for accounting purposes | Embedded derivatives
Fair value of derivative instruments
Current portion of fair value of derivative assets	6,579	5,175
Noncurrent portion of fair value of derivative assets	$ 3,929	$ 5,570