CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)		12 Months Ended
		Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Operating Activities
Net income including noncontrolling interest		$ 138,799,000	$ 486,485,000	$ 723,681,000
Adjustments to reconcile net income to net cash provided by continuing operations activities
Depreciation, depletion and amortization		977,753,000	865,753,000	861,602,000
Unsuccessful exploration well costs and previously suspended exploration costs		30,095,000	73,201,000	169,795,000
Deferred income tax expense		34,673,000	72,434,000	179,823,000
Impairment of assets		115,002,000	62,909,000	0
Accretion of asset retirement obligations		57,730,000	52,511,000	46,059,000
Long-term non-cash compensation		45,128,000	45,057,000	61,953,000
Amortization of undeveloped leases		11,634,000	9,587,000	10,925,000
(Income) loss from discontinued operations		(485,000)	2,812,000	1,467,000
Unrealized (gain) loss on derivative instruments		(1,706,000)	1,707,000	0
Contingent consideration payment		0	0	(139,574,000)
Unrealized loss on contingent consideration		0	0	7,113,000
Other operating activities, net		(86,763,000)	(18,349,000)	(74,728,000)
Net decrease (increase) in non-cash working capital		(74,052,000)	74,883,000	(99,361,000)
Net cash provided by continuing operations activities		1,247,808,000	1,728,990,000	1,748,755,000
Investing Activities
Property additions and dry hole costs	[1]	(1,020,611,000)	(900,108,000)	(1,066,015,000)
Acquisition of oil and natural gas properties	[1]	(29,034,000)	(8,056,000)	(35,578,000)
Proceeds from sales of property, plant and equipment		20,719,000	0	102,913,000
Net cash required by investing activities		(1,028,926,000)	(908,164,000)	(998,680,000)
Financing Activities
Retirement of debt		0	(650,112,000)	(498,175,000)
Early redemption of debt cost		0	(15,700,000)	0
Debt issuance		0	600,000,000	0
Debt issuance cost		0	(10,145,000)	0
Borrowings on revolving credit facility		550,000,000	350,000,000	600,000,000
Repayment of revolving credit facility		(450,000,000)	(350,000,000)	(600,000,000)
Issue costs of revolving credit facility		(418,000)	(14,718,000)	(20,000)
Repurchase of common stock		(102,620,000)	(301,350,000)	(150,022,000)
Cash dividends paid		(186,205,000)	(179,961,000)	(170,978,000)
Distributions to noncontrolling interest		(63,841,000)	(118,580,000)	(29,382,000)
Withholding tax on stock-based incentive awards		(9,743,000)	(25,310,000)	(14,276,000)
Finance lease obligation payments		(1,238,000)	(665,000)	(622,000)
Contingent consideration payment		0	0	(60,243,000)
Net cash required by financing activities		(264,065,000)	(716,541,000)	(923,718,000)
Effect of exchange rate changes on cash and cash equivalents		(1,190,000)	2,210,000	(1,246,000)
Net increase (decrease) in cash and cash equivalents		(46,373,000)	106,495,000	(174,889,000)
Cash and cash equivalents at beginning of period		423,569,000	317,074,000	491,963,000
Cash and cash equivalents at end of period		$ 377,196,000	$ 423,569,000	$ 317,074,000

[1] Prior period amounts have been reclassified to conform to current period presentation.