Property and Equipment (Detail) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Property Plant And Equipment [Line Items]
Total property and equipment	$ 7,992,838	$ 8,178,346
Less accumulated depreciation, depletion and impairment	(5,687,308)	(5,846,591)
Property and equipment, net	2,305,530	2,331,755
Equipment
Property Plant And Equipment [Line Items]
Total property and equipment	7,554,169	7,742,101
Oil and natural gas properties
Property Plant And Equipment [Line Items]
Total property and equipment	232,227	229,403
Buildings
Property Plant And Equipment [Line Items]
Total property and equipment	182,319	182,280
Land
Property Plant And Equipment [Line Items]
Total property and equipment	$ 24,123	$ 24,562