PROPERTY, PLANT AND EQUIPMENT AND CONSTRUCTION-IN-PROCESS - Schedule of Property, Plant and Equipment, Net (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 6,011,595	$ 5,605,216
Asset retirement cost	54,002	59,831
Less accumulated depreciation	(2,339,026)	(2,103,330)
Property, plant and equipment, net	3,672,569	3,501,886
Land
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	56,070	51,500
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	18,311	12,746
Machinery and equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	419,231	389,252
Buildings and office equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	157,534	145,272
Vehicles
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	21,078	20,159
Energy storage equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	522,610	324,065
Solar facility equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	95,036	97,502
Geothermal and recovered energy generation power plants | United States
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	3,708,110	3,585,209
Geothermal and recovered energy generation power plants | Foreign countries
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 959,613	$ 919,680