Derivative Instruments - Fair value gains (losses) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Summary of realized and unrealized gains (losses) on derivative instruments
Derivative fair value gains (losses)			$ 22,229	$ 137,924
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)	$ 18,004	$ 5,290	22,726	138,602
Embedded derivatives | Revenue
Summary of realized and unrealized gains (losses) on derivative instruments
Derivative fair value gains (losses)	$ 364	$ (1,842)	$ (497)	$ (678)