Supplemental Disclosures to the Unaudited Condensed Consolidated Balance Sheets and Unaudited Condensed Consolidated Statements of Cash Flows - Summary of Current Accrued Liabilities (Detail) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Accrued Liabilities Current [Abstract]
Accrued lease operating expense	$ 8,013	$ 8,978
Accrued production and ad valorem tax	3,280	2,601
Accrued commitment fee and other expense	2,920	4,404
Accrued general and administrative expense	2,019	3,349
Operating lease liability	2,009	2,258
Accrued capital expenditures	1,388	173
Asset retirement obligations	424	424
Accrued current income taxes	110	110
Accrued interest payable	25	26
Other	362	354
Accrued liabilities	$ 20,550	$ 22,677