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Financial expenses (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Finance Expense [Line Items]      
Financial expenses $ 60,629 $ 37,822 $ 42,173
Sociedad Minera Cerro Verde S.A.A. [Member]      
Finance Expense [Line Items]      
Interest on disputed mining royalties (a) 15,334 43,838 68,107
Interest on senior unsecured credit facility (see Note 10(a)) 10,127 22,351 39,083
Interest for leases (see Note 10(b)) 4,371 4,875 5,242
Excess of salaries limit in workers profit sharing (b) 1,638 16,591  
Amortization debt issuance cost (See Note 10(c)) 955 1,673 1,768
Other financial expenses 783 891 2,395
Extinguishment of debt - debt issuance cost (see Note 10(c)) 289 902 1,298
Capitalized Interest associated to capital projects (1,997) (2,544) (4,504)
Tax contingencies (c) 0 54,098 2,488
Financial expenses $ 31,500 $ 142,675 $ 115,877