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Supplemental Oil and Natural Gas Disclosures (Unaudited) - Standardized Measure of Discounted Future Net Cash Flows (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Consolidated operations      
Increase (Decrease) in Standardized Measure of Discounted Future Net Cash Flows Relating to Proved Oil and Gas Reserves [Roll Forward]      
Balance at beginning of period $ 1,327,860 $ 3,110,848 $ 4,207,347
Net change in prices and production costs 3,330,299 (1,184,939) (821,874)
Net change in future development costs 117,333 160,465 (59,359)
Sales and transfers of oil and natural gas produced, net of production expenses (872,521) (290,053) (568,665)
Extensions, discoveries, additions and improved recovery, net of related costs 162,657 31,688 182,697
Purchases of reserves in place 1,236,388 176,480 0
Sales of reserves in place (84,095) 0 0
Revisions of previous quantity estimates (295,234) (887,395) (226,561)
Previously estimated development costs incurred 95,879 32,873 15,676
Net change in taxes (184,419) 19,350 (19)
Accretion of discount 124,153 283,954 424,278
Changes in timing and other 0 (125,411) (42,672)
Balance at end of period 4,958,300 1,327,860 3,110,848
Equity affiliate      
Increase (Decrease) in Standardized Measure of Discounted Future Net Cash Flows Relating to Proved Oil and Gas Reserves [Roll Forward]      
Balance at beginning of period 0 0 0
Net change in prices and production costs 0 0 0
Net change in future development costs 0 0 0
Sales and transfers of oil and natural gas produced, net of production expenses (1,246) 0 0
Extensions, discoveries, additions and improved recovery, net of related costs 0 0 0
Purchases of reserves in place 26,154 0 0
Sales of reserves in place 0 0 0
Revisions of previous quantity estimates 0 0 0
Previously estimated development costs incurred 0 0 0
Net change in taxes (1,730) 0 0
Accretion of discount 0 0 0
Changes in timing and other 0 0 0
Balance at end of period $ 23,178 $ 0 $ 0