v3.26.1
Segment Disclosure (Details)
$ in Thousands
 1 Months Ended 12 Months Ended
Jun. 30, 2024
USD ($)
Dec. 31, 2025
USD ($)
customer_
operatingMine
Dec. 31, 2024
USD ($)
customer_
Disclosure of operating segments [abstract]      
Number Of operating mines | operatingMine   3  
Disclosure of operating segments [line items]      
Revenue   $ 785,844 $ 470,259
Cost Of Sales, Production   (291,858) (192,866)
Depreciation and depletion   (114,163) (85,733)
Sales expense   (34,124) (11,107)
Other expenses   (1,070) 0
Cost of sales   (441,215) (289,706)
Gross profit   344,629 180,553
Expenses      
General and administrative   (49,451) (49,598)
Share-based compensation   (24,580) (9,983)
Write-down of mineral properties and exploration and evaluation asset $ (10,700) 0 (12,051)
Operating income (loss)   270,598 108,921
Capital expenditures   273,042 324,935
Assets      
Total current assets   276,212 141,790
Total non-current assets   1,647,666 1,316,238
Total Assets   1,923,878 1,458,028
Total Liabilities   $ 986,016 $ 866,954
Number of customers | customer_   7 6
Copper      
Disclosure of operating segments [line items]      
Revenue   $ 619,736 $ 342,956
Gold      
Disclosure of operating segments [line items]      
Revenue   $ 166,108 $ 127,303
Assets      
Number of customers | customer_     2
Caraíba (Brazil) | Copper      
Assets      
Number of customers | customer_   4  
Caraíba (Brazil) | Operating segments [member]      
Disclosure of operating segments [line items]      
Revenue   $ 358,289 $ 311,777
Cost Of Sales, Production   (188,765) (158,006)
Depreciation and depletion   (76,478) (65,194)
Sales expense   (8,139) (7,443)
Other expenses   (1,070)  
Cost of sales   (274,452) (230,643)
Gross profit   83,837 81,134
Expenses      
General and administrative   (20,198) (26,044)
Share-based compensation   0 0
Write-down of mineral properties and exploration and evaluation asset     (1,299)
Operating income (loss)   63,639 53,791
Capital expenditures   176,577 165,681
Assets      
Total current assets   82,230 65,116
Total non-current assets   1,015,424 818,324
Total Assets   1,097,654 883,440
Total Liabilities   152,880 166,730
Tucumã (Brazil) | Operating segments [member]      
Disclosure of operating segments [line items]      
Revenue   261,447 31,179
Cost Of Sales, Production   (65,193) 4,805
Depreciation and depletion   (17,360) (149)
Sales expense   (20,143) (1,695)
Other expenses   0  
Cost of sales   (102,696) (6,649)
Gross profit   158,751 24,530
Expenses      
General and administrative   (10,202) 2,172
Share-based compensation   0 0
Write-down of mineral properties and exploration and evaluation asset     0
Operating income (loss)   148,549 22,358
Capital expenditures   47,119 126,782
Assets      
Total current assets   91,466 16,600
Total non-current assets   476,957 400,889
Total Assets   568,423 417,489
Total Liabilities   $ 37,099 $ 40,174
Xavantina (Brazil) | Gold      
Assets      
Number of customers | customer_   3 4
Xavantina (Brazil) | Operating segments [member]      
Disclosure of operating segments [line items]      
Revenue   $ 166,108 $ 127,303
Cost Of Sales, Production   (37,900) (30,055)
Depreciation and depletion   (20,325) (20,390)
Sales expense   (5,842) (1,969)
Other expenses   0  
Cost of sales   (64,067) (52,414)
Gross profit   102,041 74,889
Expenses      
General and administrative   (6,736) (6,545)
Share-based compensation   0 0
Write-down of mineral properties and exploration and evaluation asset     0
Operating income (loss)   95,305 68,344
Capital expenditures   28,038 24,625
Assets      
Total current assets   90,087 12,691
Total non-current assets   119,617 85,013
Total Assets   209,704 97,704
Total Liabilities   176,287 85,448
Corporate and Other | Operating segments [member]      
Disclosure of operating segments [line items]      
Revenue   0 0
Cost Of Sales, Production   0 0
Depreciation and depletion   0 0
Sales expense   0 0
Other expenses   0  
Cost of sales   0 0
Gross profit   0 0
Expenses      
General and administrative   (12,315) (14,837)
Share-based compensation   (24,580) (9,983)
Write-down of mineral properties and exploration and evaluation asset     (10,752)
Operating income (loss)   (36,895) (35,572)
Capital expenditures   21,308 7,847
Assets      
Total current assets   12,429 47,383
Total non-current assets   35,668 12,012
Total Assets   48,097 59,395
Total Liabilities   $ 619,750 $ 574,602