Derivative Financial Instruments - Schedule of Notional Amounts and Estimated Fair Values of Commodity Derivative Positions (Detail) bbl in Thousands, MMBTU in Thousands, $ in Thousands	Sep. 30, 2023 USD ($) bbl MMBTU	Dec. 31, 2022 USD ($) MMBTU bbl
Financial Institution Counterparties [Member] | Oil Commodity Derivative [Member]
Derivative Instruments [Line Items]
Oil/Natural Gas Derivative Assets, Notional Amount | bbl	3,819	4,024
Oil/Natural Gas Derivative Liabilities, Notional Amount | bbl	7,103	6,068
Oil/Natural Gas Derivative Assets, Estimated Fair Value	$ 13,764	$ 27,082
Oil/Natural Gas Derivative Liabilities, Estimated Fair Value	$ (49,509)	$ (53,579)
Financial Institution Counterparties [Member] | Natural Gas Commodity Derivative [Member]
Derivative Instruments [Line Items]
Oil/Natural Gas Derivative Assets, Notional Amount | MMBTU	17,873	16,539
Oil/Natural Gas Derivative Liabilities, Notional Amount | MMBTU	8,382	15,682
Oil/Natural Gas Derivative Assets, Estimated Fair Value	$ 6,126	$ 6,220
Oil/Natural Gas Derivative Liabilities, Estimated Fair Value	$ (5,726)	$ (19,138)
Customer Counterparties [Member] | Oil Commodity Derivative [Member]
Derivative Instruments [Line Items]
Oil/Natural Gas Derivative Assets, Notional Amount | bbl	7,380	6,068
Oil/Natural Gas Derivative Liabilities, Notional Amount | bbl	3,542	4,024
Oil/Natural Gas Derivative Assets, Estimated Fair Value	$ 50,384	$ 54,219
Oil/Natural Gas Derivative Liabilities, Estimated Fair Value	$ (13,471)	$ (26,551)
Customer Counterparties [Member] | Natural Gas Commodity Derivative [Member]
Derivative Instruments [Line Items]
Oil/Natural Gas Derivative Assets, Notional Amount | MMBTU	8,824	15,682
Oil/Natural Gas Derivative Liabilities, Notional Amount | MMBTU	17,431	16,539
Oil/Natural Gas Derivative Assets, Estimated Fair Value	$ 5,745	$ 19,164
Oil/Natural Gas Derivative Liabilities, Estimated Fair Value	$ (5,901)	$ (6,124)