Property, Plant and Equipment - Schedule of Property, Plant and Equipment (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Property, Plant and Equipment [Line Items]
Cost	$ 20,717,987	$ 20,585,703
Net	8,228,016	8,127,852
Exploration and Production
Property, Plant and Equipment [Line Items]
Cost	20,567,489	20,440,568
Net	8,204,463	8,098,396
Corporate and other
Property, Plant and Equipment [Line Items]
Cost	150,498	145,135
Net	23,553	29,456
Mineral Rights
Property, Plant and Equipment [Line Items]
Cost	476,981	615,724
Net	344,507	131,107
Administrative Assets and Support Equipment
Property, Plant and Equipment [Line Items]
Net	$ 18,319	$ 22,543