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Trade and other receivables, net (Details 1) - USD ($)
$ in Thousands
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Disclosure of Trade and other receivables, net [Line Items]        
Trade receivables, gross $ 168,714 $ 236,279    
Allowance for doubtful accounts (10,089) (9,361) $ (8,963)  
Other Receivables 105,607 145,043    
Total trade and other receivables, net 252,308 358,499    
Trade and other receivables, net 211,715 314,308    
Trade and other receivables, net 40,593 44,191    
Foreign clients [Member]        
Disclosure of Trade and other receivables, net [Line Items]        
Trade receivables, gross 56,312 119,388    
Advances to suppliers [Member]        
Disclosure of Trade and other receivables, net [Line Items]        
Other Receivables 7,542 1,977    
Tax claims [Member]        
Disclosure of Trade and other receivables, net [Line Items]        
Other Receivables 2,573 2,300    
Related entities [Member]        
Disclosure of Trade and other receivables, net [Line Items]        
Trade receivables, gross [1] 7,177 7,348    
Other Receivables [1] 3,705 732    
Other minors [Member]        
Disclosure of Trade and other receivables, net [Line Items]        
Other Receivables 2,738 1,911    
Minera Yanacocha SRL and subsidiary [Member]        
Disclosure of Trade and other receivables, net [Line Items]        
Other receivables, gross 49,895 48,672    
Allowance for doubtful accounts (1,384) (1,384) $ (1,407) $ (1,444)
Other Receivables 25,557 24,055    
Total trade and other receivables, net 55,900 48,320    
Trade and other receivables, net 32,610 36,800    
Trade and other receivables, net 23,290 11,520    
Minera Yanacocha SRL and subsidiary [Member] | Foreign clients [Member]        
Disclosure of Trade and other receivables, net [Line Items]        
Trade receivables, gross 7,389 1,032    
Minera Yanacocha SRL and subsidiary [Member] | Advances to suppliers [Member]        
Disclosure of Trade and other receivables, net [Line Items]        
Other receivables, gross 16,897 20,724    
Minera Yanacocha SRL and subsidiary [Member] | Tax claims [Member]        
Disclosure of Trade and other receivables, net [Line Items]        
Other receivables, gross 3,532 10,211    
Minera Yanacocha SRL and subsidiary [Member] | Related entities [Member]        
Disclosure of Trade and other receivables, net [Line Items]        
Other receivables, gross 794 2,185    
Minera Yanacocha SRL and subsidiary [Member] | Other minors [Member]        
Disclosure of Trade and other receivables, net [Line Items]        
Other receivables, gross 5,382 4,032    
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 $ 23,290 $ 11,520    
[1] Trade accounts receivable are denominated in U.S. dollars, are neither due nor impaired, do not yield interest and have no specific guarantees.