Derivative Instruments - Fair value gains (losses) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Summary of realized and unrealized gains (losses) on derivative instruments
Derivative fair value gains (losses)			$ 3,861	$ 134,476
Loss on early settlement of natural gas swaption agreement				202,339
Commodity derivatives
Summary of realized and unrealized gains (losses) on derivative instruments
Loss on early settlement of natural gas swaption agreement				202,000
Commodity derivatives | Revenue
Summary of realized and unrealized gains (losses) on derivative instruments
Derivative fair value gains (losses)	$ (3,545)	$ 6,232	4,721	133,312
Embedded derivatives | Revenue
Summary of realized and unrealized gains (losses) on derivative instruments
Derivative fair value gains (losses)	$ (2,040)	$ 2,052	$ (860)	$ 1,164