Fair Value Measurements - Valuation of Financial Instruments by Pricing Levels (Detail) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Derivative assets (liabilities):
Derivative assets (liabilities)	$ 251,825	$ (178,671)
Crude Oil Fixed Price Swaps [Member]
Derivative assets (liabilities):
Derivative assets (liabilities)	164,325	11,696
Natural Gas Fixed Price Swaps [Member]
Derivative assets (liabilities):
Derivative assets (liabilities)	74,212	(191,779)
Collars [Member]
Derivative assets (liabilities):
Derivative assets (liabilities)	(233)	(30,318)
NYMEX roll swaps
Derivative assets (liabilities):
Derivative assets (liabilities)	2,119	2,836
Natural Gas Basis Swaps [Member]
Derivative assets (liabilities):
Derivative assets (liabilities)	2,309	8,910
Natural Gas WAHA Swaps [Member]
Derivative assets (liabilities):
Derivative assets (liabilities)	8,627	19,386
Natural gas 3-way collars [Member]
Derivative assets (liabilities):
Derivative assets (liabilities)		598
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] | NYMEX roll swaps
Derivative assets (liabilities):
Derivative assets (liabilities)	0	0
Fair Value, Inputs, Level 1 [Member] | Natural Gas Basis 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 1 [Member] | Natural gas 3-way collars [Member]
Derivative assets (liabilities):
Derivative assets (liabilities)		0
Fair Value, Inputs, Level 2 [Member]
Derivative assets (liabilities):
Derivative assets (liabilities)	251,825	(178,671)
Fair Value, Inputs, Level 2 [Member] | Crude Oil Fixed Price Swaps [Member]
Derivative assets (liabilities):
Derivative assets (liabilities)	164,325	11,696
Fair Value, Inputs, Level 2 [Member] | Natural Gas Fixed Price Swaps [Member]
Derivative assets (liabilities):
Derivative assets (liabilities)	74,212	(191,779)
Fair Value, Inputs, Level 2 [Member] | Collars [Member]
Derivative assets (liabilities):
Derivative assets (liabilities)	(233)	(30,318)
Fair Value, Inputs, Level 2 [Member] | NYMEX roll swaps
Derivative assets (liabilities):
Derivative assets (liabilities)	2,119	2,836
Fair Value, Inputs, Level 2 [Member] | Natural Gas Basis Swaps [Member]
Derivative assets (liabilities):
Derivative assets (liabilities)	2,309	8,910
Fair Value, Inputs, Level 2 [Member] | Natural Gas WAHA Swaps [Member]
Derivative assets (liabilities):
Derivative assets (liabilities)	8,627	19,386
Fair Value, Inputs, Level 2 [Member] | Natural gas 3-way collars [Member]
Derivative assets (liabilities):
Derivative assets (liabilities)		598
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] | NYMEX roll swaps
Derivative assets (liabilities):
Derivative assets (liabilities)	0	0
Fair Value, Inputs, Level 3 [Member] | Natural Gas Basis 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
Fair Value, Inputs, Level 3 [Member] | Natural gas 3-way collars [Member]
Derivative assets (liabilities):
Derivative assets (liabilities)		$ 0