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Other non-financial assets (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2016
Current        
Income tax prepayments and/or benefits (a) $ 15,456 $ 19,837    
Non-current        
Income tax expense 9,700 9,700 $ 9,700 $ 9,700
Sociedad Minera Cerro Verde S.A.A. [Member]        
Current        
Value added tax (VAT) credit 36,848 40,300    
Other taxes to be recovered   1,060    
Total Current 36,848 41,360    
Non-current        
Other receivables (b) 236,548 190,501    
Income tax prepayments and/or benefits (a) 19,303 13,669    
Other taxes to be recovered 1,847 1,457    
Total Non-Current 257,698 205,627    
Total other non-financial assets 294,546 246,987    
Protest disbursement under disputed tax 228,900 $ 190,500    
Custom taxes $ 7,600