Summary of Significant Accounting Policies - Well Costs (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Increase (Decrease) in Capitalized Exploratory Well Costs that are Pending Determination of Proved Reserves [Roll Forward]
Beginning of period	$ 0	$ 1	$ 0
Exploratory well cost additions (pending determination of proved reserves)	0	21	0
Exploratory well cost reclassifications (successful determination of proved reserves)	0	(2)	0
Exploratory well dry hole costs (unsuccessful in adding proved reserves)	0	0	0
Exploratory well cost reclassifications (canceled wells written off to predrill write-off)	0	(20)	1
End of period	$ 0	$ 0	$ 1