Fair Value Measurements - Valuation of Financial Instruments by Pricing Levels (Detail) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Derivative assets (liabilities):
Derivative assets (liabilities)	$ (459,836)	$ 34,305
Swap [Member]
Derivative assets (liabilities):
Derivative assets (liabilities)	(340,886)	27,608
Natural gas collars (HH)
Derivative assets (liabilities):
Derivative assets (liabilities)	(86,272)	3,986
NYMEX roll swaps
Derivative assets (liabilities):
Derivative assets (liabilities)	(15,202)	957
Basis swaps NGPL
Derivative assets (liabilities):
Derivative assets (liabilities)	4,615	(177)
Fixed price swaps WAHA
Derivative assets (liabilities):
Derivative assets (liabilities)	(14,073)
3 way collars
Derivative assets (liabilities):
Derivative assets (liabilities)	(8,018)	1,931
Fair Value, Inputs, Level 1 [Member]
Derivative assets (liabilities):
Derivative assets (liabilities)	0	0
Fair Value, Inputs, Level 1 [Member] | Swap [Member]
Derivative assets (liabilities):
Derivative assets (liabilities)	0	0
Fair Value, Inputs, Level 1 [Member] | Natural gas collars (HH)
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] | Basis swaps NGPL
Derivative assets (liabilities):
Derivative assets (liabilities)	0	0
Fair Value, Inputs, Level 1 [Member] | Fixed price swaps WAHA
Derivative assets (liabilities):
Derivative assets (liabilities)	0
Fair Value, Inputs, Level 1 [Member] | 3 way collars
Derivative assets (liabilities):
Derivative assets (liabilities)	0	0
Fair Value, Inputs, Level 2 [Member]
Derivative assets (liabilities):
Derivative assets (liabilities)	(459,836)	34,305
Fair Value, Inputs, Level 2 [Member] | Swap [Member]
Derivative assets (liabilities):
Derivative assets (liabilities)	(340,886)	27,608
Fair Value, Inputs, Level 2 [Member] | Natural gas collars (HH)
Derivative assets (liabilities):
Derivative assets (liabilities)	(86,272)	3,986
Fair Value, Inputs, Level 2 [Member] | NYMEX roll swaps
Derivative assets (liabilities):
Derivative assets (liabilities)	(15,202)	957
Fair Value, Inputs, Level 2 [Member] | Basis swaps NGPL
Derivative assets (liabilities):
Derivative assets (liabilities)	4,615	(177)
Fair Value, Inputs, Level 2 [Member] | Fixed price swaps WAHA
Derivative assets (liabilities):
Derivative assets (liabilities)	(14,073)
Fair Value, Inputs, Level 2 [Member] | 3 way collars
Derivative assets (liabilities):
Derivative assets (liabilities)	(8,018)	1,931
Fair Value, Inputs, Level 3 [Member]
Derivative assets (liabilities):
Derivative assets (liabilities)	0	0
Fair Value, Inputs, Level 3 [Member] | Swap [Member]
Derivative assets (liabilities):
Derivative assets (liabilities)	0	0
Fair Value, Inputs, Level 3 [Member] | Natural gas collars (HH)
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] | Basis swaps NGPL
Derivative assets (liabilities):
Derivative assets (liabilities)	0	0
Fair Value, Inputs, Level 3 [Member] | Fixed price swaps WAHA
Derivative assets (liabilities):
Derivative assets (liabilities)	0
Fair Value, Inputs, Level 3 [Member] | 3 way collars
Derivative assets (liabilities):
Derivative assets (liabilities)	$ 0	$ 0