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Intangible assets (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
IfrsStatementLineItems [Line Items]    
Cost, beginning $ 2,543,799  
Accumulated amortization and impairment, beginning (1,634,520)  
Balance at the beginning of the year 909,279 $ 1,016,927
Additions 5,748 3,087
Disposals and write-offs (342)  
Amortization (68,145) (74,529)
Impairment (loss) reversal of long-lived assets 9,534 (42,687)
Foreign exchange effect (22,300) 5,562
Transfers 913 919
Balance at the end of the year 834,687 909,279
Cost, ending 2,176,592 2,543,799
Accumulated amortization and impairment, ending (1,341,905) (1,634,520)
Gross carrying amount [member]    
IfrsStatementLineItems [Line Items]    
Cost, beginning   2,532,169
Accumulated amortization and impairment, beginning   (1,515,242)
Goodwill [member]    
IfrsStatementLineItems [Line Items]    
Cost, beginning 630,787 611,909
Accumulated amortization and impairment, beginning (323,675)  
Balance at the beginning of the year 307,112 344,567
Impairment (loss) reversal of long-lived assets   (42,660)
Foreign exchange effect (1,715) 346
Transfers   4,859
Balance at the end of the year 305,397 307,112
Cost, ending 316,087 630,787
Accumulated amortization and impairment, ending (10,690) (323,675)
Goodwill [member] | Gross carrying amount [member]    
IfrsStatementLineItems [Line Items]    
Cost, beginning 630,787  
Accumulated amortization and impairment, beginning   (267,342)
Cost, ending   630,787
Mining rights [member]    
IfrsStatementLineItems [Line Items]    
Cost, beginning 1,859,147  
Accumulated amortization and impairment, beginning (1,279,596)  
Balance at the beginning of the year 579,551 647,418
Disposals and write-offs (226)  
Amortization (65,710) (71,488)
Impairment (loss) reversal of long-lived assets 9,534  
Foreign exchange effect (15,433) 3,489
Transfers (225) 132
Balance at the end of the year 507,491 579,551
Cost, ending 1,810,609 1,859,147
Accumulated amortization and impairment, ending (1,303,118) (1,279,596)
Mining rights [member] | Gross carrying amount [member]    
IfrsStatementLineItems [Line Items]    
Cost, beginning   1,855,014
Accumulated amortization and impairment, beginning   (1,207,596)
Other intangible assets [member]    
IfrsStatementLineItems [Line Items]    
Cost, beginning 53,865  
Accumulated amortization and impairment, beginning (31,249)  
Balance at the beginning of the year 22,616 24,942
Additions 5,748 3,087
Disposals and write-offs (116)  
Amortization (2,435) (3,041)
Impairment (loss) reversal of long-lived assets   (27)
Foreign exchange effect (5,152) 1,727
Transfers 1,138 (4,072)
Balance at the end of the year 21,799 22,616
Cost, ending 49,896 53,865
Accumulated amortization and impairment, ending $ (28,097) $ (31,249)
Average annual depreciation rates 5.00% 5.00%
Other intangible assets [member] | Gross carrying amount [member]    
IfrsStatementLineItems [Line Items]    
Cost, beginning   $ 65,246
Accumulated amortization and impairment, beginning   $ (40,304)