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Supplementary Information - Standardized Measure of Discounted Future Net Cash Flows and Changes therein Relating to Proved Oil and Gas Reserves (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]    
Sales of oil and gas produced, net of production costs $ (86,302) $ (45,322)
Net changes in prices and production costs 72,640 143,750
Extensions, discoveries and improved recovery 126,029 6,440
Revisions of previous quantity estimates (10,902) 18,991
Net change in development costs (2,814) (12,904)
Reserves sold (818) (136)
Reserves purchased 0 0
Accretion of discount 13,581 4,162
Net change in income taxes (8,435) (21,180)
Changes in production rates (timing) and other 5,751 386
Net change 108,730 94,187
Standardized measure of discounted future net cash flow:    
Beginning of year 135,806 41,619
End of year $ 244,536 $ 135,806