PROPERTY, PLANT AND EQUIPMENT AND CONSTRUCTION-IN-PROCESS - Schedule of Construction-In-Process (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Property, Plant and Equipment [Line Items]
Construction-in-process	$ 1,048,174	$ 755,589
Projects under exploration and development
Property, Plant and Equipment [Line Items]
Construction-in-process	286,870	193,703	$ 162,476	$ 95,268
Projects under construction
Property, Plant and Equipment [Line Items]
Construction-in-process	761,304	561,886	652,491	797,930
Up-front bonus costs | Projects under exploration and development
Property, Plant and Equipment [Line Items]
Construction-in-process	5,331	5,331	5,335	5,335
Up-front bonus costs | Projects under construction
Property, Plant and Equipment [Line Items]
Construction-in-process	11,031	11,031	11,156	11,156
Exploration and development costs | Projects under exploration and development
Property, Plant and Equipment [Line Items]
Construction-in-process	280,836	187,669	156,438	89,230
Interest capitalized | Projects under exploration and development
Property, Plant and Equipment [Line Items]
Construction-in-process	703	703	703	703
Interest capitalized | Projects under construction
Property, Plant and Equipment [Line Items]
Construction-in-process	38,607	21,082	22,919	25,645
Drilling and construction costs | Projects under construction
Property, Plant and Equipment [Line Items]
Construction-in-process	$ 711,666	$ 529,773	$ 618,416	$ 761,129