Accrued Liabilities - Schedule of Accrued Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Payables and Accruals [Abstract]
Accrued interest – 11.25% Senior Notes	$ 7,031	$ 14,063
Accrued well costs	12,387	8,932
Bonus payable	609	2,353
Other	3,022	1,557
Total accrued liabilities	$ 23,049	$ 26,905
Debt instrument interest rate (as a percent)	11.25%