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PROPERTY, PLANT AND MINE DEVELOPMENT - Geographic Information (Details) - USD ($)
$ in Thousands
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Property, plant and mine development      
Property, plant and equipment $ 18,459,400 $ 7,675,595 $ 7,325,418
Canada      
Property, plant and mine development      
Property, plant and equipment 15,228,426 5,558,800  
Australia      
Property, plant and mine development      
Property, plant and equipment 1,188,301    
Finland      
Property, plant and mine development      
Property, plant and equipment 1,447,399 1,435,881  
Sweden      
Property, plant and mine development      
Property, plant and equipment 13,812 13,812  
Mexico      
Property, plant and mine development      
Property, plant and equipment 573,922 659,469  
United states      
Property, plant and mine development      
Property, plant and equipment $ 7,540 $ 7,633