v3.26.1
Exploration in non-operating areas (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Disclosure Of Exploration In Non-Operating Areas [Line Items]      
Expense arising from exploration for and evaluation of non operating units $ 24,766 $ 21,860 $ 13,452
Services provided by third parties      
Disclosure Of Exploration In Non-Operating Areas [Line Items]      
Expense arising from exploration for and evaluation of non operating units 11,878 12,069 6,640
Personnel expenses      
Disclosure Of Exploration In Non-Operating Areas [Line Items]      
Expense arising from exploration for and evaluation of non operating units 3,536 3,110 2,982
Diverse expenses      
Disclosure Of Exploration In Non-Operating Areas [Line Items]      
Expense arising from exploration for and evaluation of non operating units 2,156 540 0
Consumption of materials and supplies      
Disclosure Of Exploration In Non-Operating Areas [Line Items]      
Expense arising from exploration for and evaluation of non operating units 1,816 1,359 698
Professional fees      
Disclosure Of Exploration In Non-Operating Areas [Line Items]      
Expense arising from exploration for and evaluation of non operating units 1,525 815 386
Laboratory analysis and tests      
Disclosure Of Exploration In Non-Operating Areas [Line Items]      
Expense arising from exploration for and evaluation of non operating units 1,106 1,347 376
Short-term and low-value lease      
Disclosure Of Exploration In Non-Operating Areas [Line Items]      
Expense arising from exploration for and evaluation of non operating units 1,020 826 368
Lands      
Disclosure Of Exploration In Non-Operating Areas [Line Items]      
Expense arising from exploration for and evaluation of non operating units 796 1,091 982
Transport      
Disclosure Of Exploration In Non-Operating Areas [Line Items]      
Expense arising from exploration for and evaluation of non operating units 281 242 244
Other      
Disclosure Of Exploration In Non-Operating Areas [Line Items]      
Expense arising from exploration for and evaluation of non operating units $ 652 $ 461 $ 776