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Other, net (Details) - USD ($)
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Disclosure of Other net [Line Items]      
Other operating incomes $ 85,875,000 $ 70,684,000 $ 54,136,000
Reversal from Impairment of Spare Parts and Supplies (22,394,000) (17,266,000) (15,762,000)
Provision for impairment of spare parts and supplies, note 8(c) (7,243,000) (6,877,000) (8,920,000)
Other Operating Expense (100,960,000) (99,944,000) (51,446,000)
Other operating income expense net (15,085,000) (29,260,000) 2,690,000
Profit (loss) 602,935,000 (262,804,000) (150,339,000)
Proceeds from insurance claim 0 2,358,000 4,381,000
Environmental liabilities, budget for closure $ 13,095,000    
Environmental liabilities, term 7 years    
Minimum      
Disclosure of Other net [Line Items]      
Environmental liabilities, discount rate 4.772%    
Maximum      
Disclosure of Other net [Line Items]      
Environmental liabilities, discount rate 5.755%    
Cost of sale of supplies and merchandise to third parties      
Disclosure of Other net [Line Items]      
Other Operating Expense $ (45,520,000) (35,831,000) (26,463,000)
Provision for impairment of spare parts and supplies      
Disclosure of Other net [Line Items]      
Other Operating Expense (22,533,000) (22,394,000) (17,266,000)
Changes in provisions for exploration projects      
Disclosure of Other net [Line Items]      
Other Operating Expense (13,631,000) (2,030,000) (642,000)
Cost of sale of services to third parties      
Disclosure of Other net [Line Items]      
Other Operating Expense (6,591,000) (10,440,000) (3,311,000)
Withdrawals and disposals of property, machinery and equipment,      
Disclosure of Other net [Line Items]      
Other Operating Expense (3,924,000) (1,909,000) (586,000)
Penalty of account receivable for tax claim      
Disclosure of Other net [Line Items]      
Other Operating Expense (2,322,000) 0 0
Net loss on transfer of contractual transfer      
Disclosure of Other net [Line Items]      
Other Operating Expense (2,000,000) 0 0
Fines and interest related to contingencies      
Disclosure of Other net [Line Items]      
Other Operating Expense (1,612,000) 0 0
Expenses from previous years      
Disclosure of Other net [Line Items]      
Other Operating Expense (1,296,000) (1,520,000) (1,402,000)
Administrative expensess.      
Disclosure of Other net [Line Items]      
Other Operating Expense (569,000) (977,000) (245,000)
Personnel expenses      
Disclosure of Other net [Line Items]      
Other Operating Expense (379,000) (5,645,000) 0
Allowance for expected credit losses      
Disclosure of Other net [Line Items]      
Other Operating Expense (253,000) (409,000) (4,000)
Net cost of property, machinery and equipment to third parties      
Disclosure of Other net [Line Items]      
Other Operating Expense (13,000) (119,000) (192,000)
Changes in environmental liabilities provision      
Disclosure of Other net [Line Items]      
Other Operating Expense 0 (15,533,000) (124,000)
Disposal cost of sale of supplies and merchandise to related parties      
Disclosure of Other net [Line Items]      
Other Operating Expense 0 (72,000) (1,211,000)
Others.      
Disclosure of Other net [Line Items]      
Other Operating Expense (317,000) (3,065,000) 0
Sale of supplies and merchandise to third parties      
Disclosure of Other net [Line Items]      
Other operating incomes 44,392,000 33,014,000 19,581,000
Reversal for impairment of spare parts and supplies      
Disclosure of Other net [Line Items]      
Other operating incomes (22,394,000) (17,266,000) (15,762,000)
Income from transfer of ownership of mining rights      
Disclosure of Other net [Line Items]      
Other operating incomes 8,455,000 0 0
Income from previous years      
Disclosure of Other net [Line Items]      
Other operating incomes 3,218,000 2,505,000 475,000
Sale of services to third parties      
Disclosure of Other net [Line Items]      
Other operating incomes 2,277,000 10,473,000 5,626,000
Additional income from sale of investments      
Disclosure of Other net [Line Items]      
Other operating incomes 1,577,000 0 0
Insurance Recovery      
Disclosure of Other net [Line Items]      
Other operating incomes 881,000 357,000 3,000
Insurance claim Recovery      
Disclosure of Other net [Line Items]      
Other operating incomes 0 2,358,000 4,381,000
Sale of assets to third parties      
Disclosure of Other net [Line Items]      
Other operating incomes 791,000 685,000 1,356,000
Changes in provision for mine closure      
Disclosure of Other net [Line Items]      
Other operating incomes 302,000 0 0
Changes in provision for environmental liabilities      
Disclosure of Other net [Line Items]      
Other operating incomes 228,000 0 0
Income from dividends in other investments      
Disclosure of Other net [Line Items]      
Other operating incomes 205,000 3,350,000 0
Sale of supplies to related parties      
Disclosure of Other net [Line Items]      
Other operating incomes 179,000 169,000 890,000
Revenue from commercial claims      
Disclosure of Other net [Line Items]      
Other operating incomes 0 0 3,800,000
Sale of investment in subsidiary      
Disclosure of Other net [Line Items]      
Other operating incomes 0 0 250,000
Others      
Disclosure of Other net [Line Items]      
Other operating incomes $ 976,000 $ 507,000 $ 2,012,000