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MINERAL PROPERTIES, PLANT AND EQUIPMENT, NET (Details) - USD ($)
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Property, Plant and Equipment [Line Items]      
Total mineral properties, plant, and equipment $ 5,194,170,000 $ 4,668,819,000  
Accumulated depreciation, plant and equipment (714,579,000) (621,323,000)  
Accumulated depreciation, mineral properties (606,705,000) (498,050,000)  
Mineral properties, plant, and equipment, net 3,872,886,000 3,549,446,000  
Finance lease, right-of-use asset, before accumulated amortization 84,700,000 101,700,000  
Impairment charges 361,612,000 0 $ 20,275,000
Plant and equipment      
Property, Plant and Equipment [Line Items]      
Total mineral properties, plant, and equipment 1,889,634,000 1,793,914,000  
Construction in process      
Property, Plant and Equipment [Line Items]      
Total mineral properties, plant, and equipment 86,304,000 58,704,000  
Mineral properties subject to depletion      
Property, Plant and Equipment [Line Items]      
Total mineral properties, plant, and equipment 2,085,678,000 1,452,850,000  
Mineral properties not yet subject to depletion      
Property, Plant and Equipment [Line Items]      
Total mineral properties, plant, and equipment 878,712,000 848,281,000  
Exploration and evaluation assets      
Property, Plant and Equipment [Line Items]      
Total mineral properties, plant, and equipment $ 253,842,000 $ 515,070,000