Derivative Instruments - Fair value gains (losses) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Summary of realized and unrealized gains (losses) on derivative instruments
Derivative fair value gains (losses)	$ (1,936,509)	$ 79,918	$ 463,972
Commodity derivative fair value gains (losses) on derivatives monetized prior to settlement dates	(5,000)	9,000	0
Net fair value of commodity derivative assets position | Revenue.
Summary of realized and unrealized gains (losses) on derivative instruments
Derivative fair value gains (losses)	(1,886,551)	40,565	$ 463,972
Embedded derivatives | Revenue.
Summary of realized and unrealized gains (losses) on derivative instruments
Derivative fair value gains (losses)	$ (49,958)	$ 39,353