Supplemental Information on Oil and Gas Producing Activities (Unaudited) (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Capitalized Costs Relating to Oil and Gas Producing Activities
Proved properties	$ 13,908,804	$ 13,234,777
Unproved properties	974,642	997,715
Total oil and gas properties	14,883,446	14,232,492
Accumulated depletion	(4,996,691)	(4,624,674)
Net capitalized costs	9,886,755	9,607,818
Costs Incurred in Certain Oil and Gas Activities
Unproved property	151,135	149,009	$ 79,138
Development costs	956,267	775,106	581,352
Exploration costs	8,079	5,543	19,822
Total costs incurred	1,115,481	929,658	680,312
Results of Operations for Oil and Gas Producing Activities
Revenues	4,276,445	8,294,749	5,790,759
Operating expenses:
Production expenses	2,919,654	2,992,381	2,793,877
Exploration expenses	2,691	3,651	1,164
Depletion	682,109	737,504	735,687
Impairment of unproved properties	51,302	98,324	90,523
Results of operations before income tax expense	620,689	4,462,889	2,169,508
Income tax expense	(135,063)	(959,477)	(520,168)
Results of operations	$ 485,626	$ 3,503,412	$ 1,649,340