XML 95 R54.htm IDEA: XBRL DOCUMENT v3.22.0.1
Property, Plant and Equipment - Oil and Natural Gas Properties (Details) - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Oil and Gas Property, Successful Effort Method, Net [Abstract]    
Proved oil and natural gas properties (successful efforts method) $ 6,043,602 $ 4,910,059
Unproved oil and natural gas properties 308,721 288,459
Oil and natural gas properties at cost, successful efforts method 6,352,323 5,198,518
Less accumulated depreciation, depletion, amortization and impairment (1,881,934) (1,633,664)
Oil and natural gas properties, net $ 4,470,389 $ 3,564,854