v3.26.1
INTANGIBLE ASSETS, NET (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Disclosure of detailed information about intangible assets [line items]    
Intangible assets and goodwill, beginning balance $ 1,022,111 $ 996,048
Translation differences 4,735 (8,810)
Additions 155,926 200,091
Disposals / Consumptions (771) (4,252)
Impairment charge (5,280) (32,435)
Transfers (7,144) 1,522
Amortization charge (167,216) (130,053)
Intangible assets and goodwill, ending balance 1,002,361 1,022,111
Cost    
Disclosure of detailed information about intangible assets [line items]    
Intangible assets and goodwill, beginning balance 2,169,781 2,016,010
Intangible assets and goodwill, ending balance 2,318,026 2,169,781
Accumulated depreciation    
Disclosure of detailed information about intangible assets [line items]    
Intangible assets and goodwill, beginning balance (1,147,670) (1,019,962)
Intangible assets and goodwill, ending balance (1,315,665) (1,147,670)
Information system projects    
Disclosure of detailed information about intangible assets [line items]    
Intangible assets and goodwill, beginning balance 223,983 181,498
Translation differences 4,718 (8,810)
Additions 62,781 100,345
Disposals / Consumptions (771) (2,216)
Impairment charge 0 0
Transfers (7,061) 1,463
Amortization charge (59,248) (48,297)
Intangible assets and goodwill, ending balance 224,402 223,983
Information system projects | Cost    
Disclosure of detailed information about intangible assets [line items]    
Intangible assets and goodwill, beginning balance 651,838 563,120
Intangible assets and goodwill, ending balance 711,844 651,838
Information system projects | Accumulated depreciation    
Disclosure of detailed information about intangible assets [line items]    
Intangible assets and goodwill, beginning balance (427,855) (381,622)
Intangible assets and goodwill, ending balance (487,442) (427,855)
Mining assets    
Disclosure of detailed information about intangible assets [line items]    
Intangible assets and goodwill, beginning balance 110,129 128,342
Translation differences 17 0
Additions 60,158 62,303
Disposals / Consumptions 0 (2,000)
Impairment charge (5,280) (32,435)
Transfers 20,601 35,355
Amortization charge (107,551) (81,436)
Intangible assets and goodwill, ending balance 78,074 110,129
Mining assets | Cost    
Disclosure of detailed information about intangible assets [line items]    
Intangible assets and goodwill, beginning balance 466,817 403,875
Intangible assets and goodwill, ending balance 542,753 466,817
Mining assets | Accumulated depreciation    
Disclosure of detailed information about intangible assets [line items]    
Intangible assets and goodwill, beginning balance (356,688) (275,533)
Intangible assets and goodwill, ending balance (464,679) (356,688)
Exploration and evaluation costs    
Disclosure of detailed information about intangible assets [line items]    
Intangible assets and goodwill, beginning balance 16,786 14,639
Translation differences 0 0
Additions 32,987 37,443
Disposals / Consumptions 0 0
Impairment charge 0 0
Transfers (20,684) (35,296)
Amortization charge 0 0
Intangible assets and goodwill, ending balance 29,089 16,786
Exploration and evaluation costs | Cost    
Disclosure of detailed information about intangible assets [line items]    
Intangible assets and goodwill, beginning balance 16,786 14,639
Intangible assets and goodwill, ending balance 29,089 16,786
Exploration and evaluation costs | Accumulated depreciation    
Disclosure of detailed information about intangible assets [line items]    
Intangible assets and goodwill, beginning balance 0 0
Intangible assets and goodwill, ending balance 0 0
Customer relationships and other contractual rights    
Disclosure of detailed information about intangible assets [line items]    
Intangible assets and goodwill, beginning balance 8,906 9,262
Translation differences 0 0
Additions 0 0
Disposals / Consumptions 0 (36)
Impairment charge 0 0
Transfers 0 0
Amortization charge (417) (320)
Intangible assets and goodwill, ending balance 8,489 8,906
Customer relationships and other contractual rights | Cost    
Disclosure of detailed information about intangible assets [line items]    
Intangible assets and goodwill, beginning balance 298,098 298,134
Intangible assets and goodwill, ending balance 298,098 298,098
Customer relationships and other contractual rights | Accumulated depreciation    
Disclosure of detailed information about intangible assets [line items]    
Intangible assets and goodwill, beginning balance (289,192) (288,872)
Intangible assets and goodwill, ending balance (289,609) (289,192)
Trademarks    
Disclosure of detailed information about intangible assets [line items]    
Intangible assets and goodwill, beginning balance 0 0
Translation differences 0 0
Additions 0 0
Disposals / Consumptions 0 0
Impairment charge 0 0
Transfers 0 0
Amortization charge 0 0
Intangible assets and goodwill, ending balance 0 0
Trademarks | Cost    
Disclosure of detailed information about intangible assets [line items]    
Intangible assets and goodwill, beginning balance 73,935 73,935
Intangible assets and goodwill, ending balance 73,935 73,935
Trademarks | Accumulated depreciation    
Disclosure of detailed information about intangible assets [line items]    
Intangible assets and goodwill, beginning balance (73,935) (73,935)
Intangible assets and goodwill, ending balance (73,935) (73,935)
Goodwill    
Disclosure of detailed information about intangible assets [line items]    
Intangible assets and goodwill, beginning balance 662,307 662,307
Translation differences 0 0
Additions 0 0
Disposals / Consumptions 0 0
Impairment charge 0 0
Transfers 0 0
Amortization charge 0 0
Intangible assets and goodwill, ending balance 662,307 662,307
Goodwill | Cost    
Disclosure of detailed information about intangible assets [line items]    
Intangible assets and goodwill, beginning balance 662,307 662,307
Intangible assets and goodwill, ending balance 662,307 662,307
Goodwill | Accumulated depreciation    
Disclosure of detailed information about intangible assets [line items]    
Intangible assets and goodwill, beginning balance 0 0
Intangible assets and goodwill, ending balance $ 0 $ 0