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Segment and Geographic Reporting - Schedule of Information on Reportable Segments and Other Activities (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2019 USD ($) segment	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)
Segment Reporting [Abstract]
Number of reportable segments \| segment	1
Segment Reporting Information [Line Items]
Depletion, depreciation and accretion (Note 5)	$ 225,033	$ 197,867	$ 131,335
Asset impairment			1,514
General and administrative expenses	34,730	39,483	39,014
Interest expense			13,882
Loss on sale	0	0	(44,385)
Income (loss) before income taxes	95,975	151,487	37,330
Segment capital expenditures	$ 379,314	$ 347,093	251,041
Oil and Gas Service
Segment Reporting Information [Line Items]
Oil and natural gas sales			421,734
Reportable Segments \| Colombia
Segment Reporting Information [Line Items]
Depletion, depreciation and accretion (Note 5)			126,453
Asset impairment			0
General and administrative expenses			23,500
Interest expense			486
Loss on sale			0
Income (loss) before income taxes			111,829
Segment capital expenditures			242,636
Reportable Segments \| Colombia \| Oil and Gas Service
Segment Reporting Information [Line Items]
Oil and natural gas sales			413,316
Reportable Segments \| All Other
Segment Reporting Information [Line Items]
Depletion, depreciation and accretion (Note 5)			4,882
Asset impairment			1,514
General and administrative expenses			15,514
Interest expense			13,396
Loss on sale			(44,385)
Income (loss) before income taxes			(74,499)
Segment capital expenditures			8,405
Reportable Segments \| All Other \| Oil and Gas Service
Segment Reporting Information [Line Items]
Oil and natural gas sales			$ 8,418