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Trade and other receivables, net (Details 1) - USD ($)
$ in Thousands
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Disclosure of Trade and other receivables, net [Line Items]        
Trade receivables, gross $ 228,855 $ 174,825    
Allowance for doubtful accounts 9,361 (8,963) $ 4,779  
Other Receivables 154,404 291,919    
Total trade and other receivables, net 351,075 435,137    
Trade and other receivables, net 306,884 269,089    
Trade and other receivables, net 44,191 166,048    
Foreign clients [Member]        
Disclosure of Trade and other receivables, net [Line Items]        
Trade receivables, gross 119,388 77,254    
Advances to suppliers [Member]        
Disclosure of Trade and other receivables, net [Line Items]        
Other Receivables 1,977 908    
Related entities [Member]        
Disclosure of Trade and other receivables, net [Line Items]        
Trade receivables, gross [1] 7,348 7,760    
Other Receivables [1] 732 126,669    
Other minors [Member]        
Disclosure of Trade and other receivables, net [Line Items]        
Other Receivables 4,675 1,021    
Minera Yanacocha SRL and subsidiary [Member]        
Disclosure of Trade and other receivables, net [Line Items]        
Other receivables, gross 48,672 32,417    
Allowance for doubtful accounts 1,384 (1,407) $ 1,444 $ 1,788
Other Receivables 47,288 31,010    
Total trade and other receivables, net 48,320 40,975    
Trade and other receivables, net 36,800 40,975    
Trade and other receivables, net 11,520 0    
Minera Yanacocha SRL and subsidiary [Member] | Foreign clients [Member]        
Disclosure of Trade and other receivables, net [Line Items]        
Trade receivables, gross 1,032 9,965    
Minera Yanacocha SRL and subsidiary [Member] | Advances to suppliers [Member]        
Disclosure of Trade and other receivables, net [Line Items]        
Other receivables, gross 20,724 18,024    
Minera Yanacocha SRL and subsidiary [Member] | Tax claims [Member]        
Disclosure of Trade and other receivables, net [Line Items]        
Other receivables, gross 10,211 6,955    
Minera Yanacocha SRL and subsidiary [Member] | Related entities [Member]        
Disclosure of Trade and other receivables, net [Line Items]        
Other receivables, gross 2,185 815    
Minera Yanacocha SRL and subsidiary [Member] | Other minors [Member]        
Disclosure of Trade and other receivables, net [Line Items]        
Other receivables, gross 4,032 6,623    
Minera Yanacocha SRL and subsidiary [Member] | Credit of tax on net assets [Member]        
Disclosure of Trade and other receivables, net [Line Items]        
Other receivables, gross $ 11,520 $ 0    
[1] Trade accounts receivable are denominated in U.S. dollars, are neither due nor impaired, do not yield interest and have no specific guarantees.