v3.26.1
RECLAMATION AND CLOSURE COST PROVISIONS - Schedule of Detailed Information about Reclamation Obligation (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Schedule Of Detailed Information About Reclamation Obligation [Line Items]    
Beginning balance $ 142,146 $ 134,980
Acquisition   13,094
Change in estimates 67,204 15,512
Disposals (14,129)  
Reclamation expenditures (4,598) (9,434)
Accretion 11,571 7,203
Foreign exchange 11,221 (17,384)
Reclassified to liabilities relating to assets held for sale (54,644)  
Ending balance 234,303 142,146
Current 4,516 11,972
Non-current 229,787 130,174
Reclamation Obligations 234,303 142,146
Green stone Acquisition    
Schedule Of Detailed Information About Reclamation Obligation [Line Items]    
Acquisition   (1,825)
Calibre Acquisition    
Schedule Of Detailed Information About Reclamation Obligation [Line Items]    
Acquisition 75,532  
Canada    
Schedule Of Detailed Information About Reclamation Obligation [Line Items]    
Beginning balance 44,482 28,833
Acquisition   13,094
Change in estimates 31,737 14,492
Disposals 0  
Reclamation expenditures (1,942) (8,138)
Accretion 2,089 1,197
Foreign exchange 2,082 (3,171)
Reclassified to liabilities relating to assets held for sale 0  
Ending balance 88,359 44,482
Reclamation Obligations 88,359 44,482
Canada | Green stone Acquisition    
Schedule Of Detailed Information About Reclamation Obligation [Line Items]    
Acquisition   (1,825)
Canada | Calibre Acquisition    
Schedule Of Detailed Information About Reclamation Obligation [Line Items]    
Acquisition 9,911  
United States    
Schedule Of Detailed Information About Reclamation Obligation [Line Items]    
Beginning balance 35,666 32,458
Acquisition   0
Change in estimates (1,558) 1,941
Disposals (14,129)  
Reclamation expenditures 0 0
Accretion 1,685 1,267
Foreign exchange 0 0
Reclassified to liabilities relating to assets held for sale 0  
Ending balance 35,582 35,666
Reclamation Obligations 35,582 35,666
United States | Green stone Acquisition    
Schedule Of Detailed Information About Reclamation Obligation [Line Items]    
Acquisition   0
United States | Calibre Acquisition    
Schedule Of Detailed Information About Reclamation Obligation [Line Items]    
Acquisition 13,918  
Nicaragua    
Schedule Of Detailed Information About Reclamation Obligation [Line Items]    
Beginning balance 0 0
Acquisition   0
Change in estimates 7,329 0
Disposals 0  
Reclamation expenditures (755) 0
Accretion 1,282 0
Foreign exchange 0 0
Reclassified to liabilities relating to assets held for sale 0  
Ending balance 59,559 0
Reclamation Obligations 59,559 0
Nicaragua | Green stone Acquisition    
Schedule Of Detailed Information About Reclamation Obligation [Line Items]    
Acquisition   0
Nicaragua | Calibre Acquisition    
Schedule Of Detailed Information About Reclamation Obligation [Line Items]    
Acquisition 51,703  
Mexico    
Schedule Of Detailed Information About Reclamation Obligation [Line Items]    
Beginning balance 22,800 28,576
Acquisition   0
Change in estimates 20,147 (3,192)
Disposals 0  
Reclamation expenditures 0 (377)
Accretion 3,329 2,466
Foreign exchange 4,527 (4,673)
Reclassified to liabilities relating to assets held for sale 0  
Ending balance 50,803 22,800
Reclamation Obligations 50,803 22,800
Mexico | Green stone Acquisition    
Schedule Of Detailed Information About Reclamation Obligation [Line Items]    
Acquisition   0
Mexico | Calibre Acquisition    
Schedule Of Detailed Information About Reclamation Obligation [Line Items]    
Acquisition 0  
Brazil    
Schedule Of Detailed Information About Reclamation Obligation [Line Items]    
Beginning balance 39,198 45,113
Acquisition   0
Change in estimates 9,549 2,271
Disposals 0  
Reclamation expenditures (1,901) (919)
Accretion 3,186 2,273
Foreign exchange 4,612 (9,540)
Reclassified to liabilities relating to assets held for sale (54,644)  
Ending balance 0 39,198
Reclamation Obligations 0 39,198
Brazil | Green stone Acquisition    
Schedule Of Detailed Information About Reclamation Obligation [Line Items]    
Acquisition   $ 0
Brazil | Calibre Acquisition    
Schedule Of Detailed Information About Reclamation Obligation [Line Items]    
Acquisition $ 0