Property, Plant and Equipment - Narrative (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2021 USD ($) $ / Boe	Dec. 31, 2020 USD ($) $ / Boe	Dec. 31, 2019 USD ($) $ / Boe
Property, Plant and Equipment [Line Items]
Average depreciation and depletion rate (usd per Boe) | $ / Boe	0.78	5.11	12.28
Unproved | $	$ 12,255	$ 17,964	$ 24,603
Minimum
Property, Plant and Equipment [Line Items]
Expect completion of evaluation activities on majority of unproved properties, without existing production (in years)	3 years
Maximum
Property, Plant and Equipment [Line Items]
Expect completion of evaluation activities on majority of unproved properties, without existing production (in years)	5 years