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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, 2022 USD ($) bbl MMBTU | Dec. 31, 2021 USD ($) MMBTU bbl
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Financial Institution Counterparties [Member] | Oil Commodity Derivative [Member] |  |
Derivative Instruments [Line Items] |  |
Oil/Natural Gas Derivative Assets, Notional Amount | bbl | 4,467 | 4,809
Oil/Natural Gas Derivative Liabilities, Notional Amount | bbl | 6,987 | 7,032
Oil/Natural Gas Derivative Assets, Estimated Fair Value | $ 45,381 | $ 14,721
Oil/Natural Gas Derivative Liabilities, Estimated Fair Value | $ (55,645) | $ (73,594)
Financial Institution Counterparties [Member] | Natural Gas Commodity Derivative [Member] |  |
Derivative Instruments [Line Items] |  |
Oil/Natural Gas Derivative Assets, Notional Amount | MMBTU | 13,406 | 15,947
Oil/Natural Gas Derivative Liabilities, Notional Amount | MMBTU | 20,489 | 29,446
Oil/Natural Gas Derivative Assets, Estimated Fair Value | $ 4,033 | $ 4,143
Oil/Natural Gas Derivative Liabilities, Estimated Fair Value | $ (40,049) | $ (21,249)
Customer Counterparties [Member] | Oil Commodity Derivative [Member] |  |
Derivative Instruments [Line Items] |  |
Oil/Natural Gas Derivative Assets, Notional Amount | bbl | 7,006 | 7,046
Oil/Natural Gas Derivative Liabilities, Notional Amount | bbl | 4,448 | 4,796
Oil/Natural Gas Derivative Assets, Estimated Fair Value | $ 56,366 | $ 74,437
Oil/Natural Gas Derivative Liabilities, Estimated Fair Value | $ (44,674) | $ (14,294)
Customer Counterparties [Member] | Natural Gas Commodity Derivative [Member] |  |
Derivative Instruments [Line Items] |  |
Oil/Natural Gas Derivative Assets, Notional Amount | MMBTU | 20,489 | 29,446
Oil/Natural Gas Derivative Liabilities, Notional Amount | MMBTU | 13,406 | 15,947
Oil/Natural Gas Derivative Assets, Estimated Fair Value | $ 40,153 | $ 21,456
Oil/Natural Gas Derivative Liabilities, Estimated Fair Value | $ (4,017) | $ (4,124)

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