Supplemental Information on Natural Gas and Oil Exploration, Development and Production Activities (Unaudited) - Additional Information (Detail) $ in Millions		12 Months Ended
		Dec. 31, 2023 USD ($) MMcfe Bcfe $ / bbl $ / MMBTU $ / Mcf	Dec. 31, 2022 MMcfe $ / bbl $ / MMBTU $ / Mcf	Dec. 31, 2021 MMcfe $ / bbl $ / MMBTU $ / Mcf
Reserve Quantities [Line Items]
Percentage of proved resources reviewed by consultants		96.00%
Proved reserve and pretax present value of reserve discounted		10.00%
Variance in reserve estimates		approximately 5%
Scheduled to be drilling period maximum for undeveloped reserves		scheduled to be drilled within five years
Reserve additions attributable to natural gas			77.00%	72.00%
Proved undeveloped reserves dropped		370,600	1,400,000	1,300,000
Revisions of positive pricing				22,600
Cost spent on undeveloped reserves transferred to developed reserves | $		$ 495.1
Estimated future development costs over years | $		$ 2,600.0
Proved undeveloped reserves reported for more than five years | Bcfe		90,200
Crude Oil and NGL
Reserve Quantities [Line Items]
Benchmark price used for calculating average realized prices | $ / bbl		78.1	94.13	66.34
Crude Oil and Condensate
Reserve Quantities [Line Items]
Estimate reserve information average realized prices | $ / bbl		68.32	87.14	59.35
NGLs
Reserve Quantities [Line Items]
Estimate reserve information average realized prices | $ / bbl		24.91	38.35	28.41
Natural Gas
Reserve Quantities [Line Items]
Estimate reserve information average realized prices | $ / Mcf		2.2	6.08	3.3
Natural Gas, Per Thousand Cubic Feet
Reserve Quantities [Line Items]
Benchmark price used for calculating average realized prices | $ / MMBTU		2.62	6.36	3.6
Natural Gas Equivalents
Reserve Quantities [Line Items]
Proved reserves from drilling activities and evaluations of proved areas	[1]	207,260	1,668,244	1,602,769
Revisions of previous estimates	[1]	608,784	(591,983)	(252,876)
Revision of positive performance		701,400	72,800	1,000,000
Additional undeveloped properties reclassified		280,200	716,200
Maximum
Reserve Quantities [Line Items]
Statement that reserve estimates differ from auditors		0.10

[1] Oil and NGLs volumes are converted to mcfe at the rate of one barrel equals six mcf based upon the approximate relative energy content of oil to natural gas, which is not indicative of the relationship between oil and natural gas prices.