Property, Plant and Equipment - Schedule of Property, Plant and Equipment (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 5,072,878	$ 5,003,806
Accumulated depletion, depreciation and impairment	(3,915,226)	(3,860,956)
Total Property, Plant and Equipment (Note 3)	1,157,652	1,142,850
Right-of-use asset, gross	60,400	53,300
Right-of-use asset, net	36,300	32,400
Oil and natural gas properties
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	4,991,865	4,930,301
Proved
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	4,933,920	4,876,185
Unproved
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	57,945	54,116
Other
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 81,013	$ 73,505