Supplemental Information on Oil and Natural Gas Producing Activities (Unaudited) - Costs Incurred in Oil and Natural Gas Property Acquisition, Exploration and Development (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Acquisitions of properties
Proved	$ 3,545	$ 3,701
Proved			$ (210)
Unproved	0	0	2,653
Exploration	905	1,005	2,900
Development	10,045	3,563	156,210
Total cost incurred	$ 14,495	$ 8,269	$ 161,553