Summary of Property and Equipment (Detail) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Oil and gas properties:
Proved Oil and Gas Property, Full Cost Method	$ 2,327,686	$ 1,545,910
Unproved Oil and Gas Property, Full Cost Method	57,900	49,935
Oil and Gas Property, Full Cost Method, Gross	2,385,586	1,595,845
Other property and equipment 1	31,055	27,746
Total properties and equipment	2,416,641	1,623,591
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment	(1,033,293)	(900,042)
Total property and equipment, net	$ 1,383,348	$ 723,549