Fair Value Measurements - Valuation of Financial Instruments by Pricing Levels (Detail) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Derivative assets (liabilities):
Derivative assets (liabilities)	$ 382,766	$ 507,927
Crude Oil Fixed Price Swaps [Member]
Derivative assets (liabilities):
Derivative assets (liabilities)	92,488	146,243
Natural Gas Fixed Price Swaps [Member]
Derivative assets (liabilities):
Derivative assets (liabilities)	290,216	321,350
Collars [Member]
Derivative assets (liabilities):
Derivative assets (liabilities)	0	11,923
Crude oil NYMEX roll swaps [Member]
Derivative assets (liabilities):
Derivative assets (liabilities)	62	6,888
Natural Gas WAHA Swaps [Member]
Derivative assets (liabilities):
Derivative assets (liabilities)	0	21,523
Fair Value, Inputs, Level 1 [Member]
Derivative assets (liabilities):
Derivative assets (liabilities)	0	0
Fair Value, Inputs, Level 1 [Member] | Crude Oil Fixed Price Swaps [Member]
Derivative assets (liabilities):
Derivative assets (liabilities)	0	0
Fair Value, Inputs, Level 1 [Member] | Natural Gas Fixed Price Swaps [Member]
Derivative assets (liabilities):
Derivative assets (liabilities)	0	0
Fair Value, Inputs, Level 1 [Member] | Collars [Member]
Derivative assets (liabilities):
Derivative assets (liabilities)	0	0
Fair Value, Inputs, Level 1 [Member] | Crude oil NYMEX roll swaps [Member]
Derivative assets (liabilities):
Derivative assets (liabilities)	0	0
Fair Value, Inputs, Level 1 [Member] | Natural Gas WAHA Swaps [Member]
Derivative assets (liabilities):
Derivative assets (liabilities)	0	0
Fair Value, Inputs, Level 2 [Member]
Derivative assets (liabilities):
Derivative assets (liabilities)	382,766	507,927
Fair Value, Inputs, Level 2 [Member] | Crude Oil Fixed Price Swaps [Member]
Derivative assets (liabilities):
Derivative assets (liabilities)	92,488	146,243
Fair Value, Inputs, Level 2 [Member] | Natural Gas Fixed Price Swaps [Member]
Derivative assets (liabilities):
Derivative assets (liabilities)	290,216	321,350
Fair Value, Inputs, Level 2 [Member] | Collars [Member]
Derivative assets (liabilities):
Derivative assets (liabilities)	0	11,923
Fair Value, Inputs, Level 2 [Member] | Crude oil NYMEX roll swaps [Member]
Derivative assets (liabilities):
Derivative assets (liabilities)	62	6,888
Fair Value, Inputs, Level 2 [Member] | Natural Gas WAHA Swaps [Member]
Derivative assets (liabilities):
Derivative assets (liabilities)	0	21,523
Fair Value, Inputs, Level 3 [Member]
Derivative assets (liabilities):
Derivative assets (liabilities)	0	0
Fair Value, Inputs, Level 3 [Member] | Crude Oil Fixed Price Swaps [Member]
Derivative assets (liabilities):
Derivative assets (liabilities)	0	0
Fair Value, Inputs, Level 3 [Member] | Natural Gas Fixed Price Swaps [Member]
Derivative assets (liabilities):
Derivative assets (liabilities)	0	0
Fair Value, Inputs, Level 3 [Member] | Collars [Member]
Derivative assets (liabilities):
Derivative assets (liabilities)	0	0
Fair Value, Inputs, Level 3 [Member] | Crude oil NYMEX roll swaps [Member]
Derivative assets (liabilities):
Derivative assets (liabilities)	0	0
Fair Value, Inputs, Level 3 [Member] | Natural Gas WAHA Swaps [Member]
Derivative assets (liabilities):
Derivative assets (liabilities)	$ 0	$ 0