CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Operating Activities
Net income (loss) including noncontrolling interest		$ 1,138,719	$ 47,528	$ (1,262,445)
Adjustments to reconcile net income (loss) to net cash provided by continuing operations activities
Depreciation, depletion and amortization		776,817	795,105	987,239
Deferred income tax expense (benefit)		286,079	(4,146)	(278,042)
Mark to market (gain) loss on derivative instruments		(214,788)	112,113	69,310
Mark to market loss (gain) on contingent consideration		78,285	63,147	(13,783)
Long-term non-cash compensation		89,246	63,382	46,558
Unsuccessful exploration well costs and previously suspended exploration costs		82,085	17,339	21,099
Accretion of asset retirement obligations		46,243	46,613	42,136
Amortization of undeveloped leases		13,300	18,925	26,743
Loss from discontinued operations		2,078	1,225	7,151
Gain from sale of assets		(17,899)	0	0
Impairment of assets		0	196,296	1,206,284
Noncash restructuring expense		0	0	17,565
Other operating activities, net		(34,193)	(53,821)	(35,080)
Net (increase) decrease in noncash working capital		(65,728)	118,457	(32,027)
Net cash provided by continuing operations activities		2,180,244	1,422,163	802,708
Investing Activities
Property additions and dry hole costs	[1]	(985,461)	(650,235)	(759,809)
Acquisition of oil and natural gas properties	[1]	(128,538)	(20,244)	0
Property additions for King's Quay FPS		0	(17,734)	(112,961)
Proceeds from sales of property, plant and equipment		4,528	270,503	13,750
Net cash required by investing activities		(1,109,471)	(417,710)	(859,020)
Financing Activities
Retirement of debt		(647,707)	(876,358)	(12,225)
Repayment of revolving credit facility		(400,000)	(365,000)	(250,000)
Borrowings on revolving credit facility		400,000	165,000	450,000
Distributions to noncontrolling interest		(183,038)	(137,517)	(43,673)
Cash dividends paid		(128,219)	(77,204)	(95,989)
Contingent consideration paid		(81,742)	0	0
Withholding tax on stock-based incentive awards		(17,631)	(5,209)	(7,094)
Issue costs of debt facility		(14,353)	0	0
Early redemption of debt cost		(8,295)	(39,335)	0
Capital lease obligation payments		(636)	(803)	(695)
Debt issuance, net of cost		0	541,913	(613)
Net cash (required) provided by financing activities		(1,081,621)	(794,513)	39,711
Cash Flows from Discontinued Operations
Operating activities		(14,500)	0	0
Net cash (required) by discontinued operations		(14,500)	0	0
Cash from discontinued operations	[2]	0	0	18,438
Effect of exchange rate changes on cash and cash equivalents		(3,873)	638	2,009
Net (decrease) increase in cash and cash equivalents		(29,221)	210,578	3,846
Cash and cash equivalents at beginning of period		521,184	310,606	306,760
Cash and cash equivalents at end of period		$ 491,963	$ 521,184	$ 310,606

[1] Certain prior-period amounts have been reclassified to conform to the current period presentation.

[2] Cash previously classified as held-for-sale