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Cost of sales, without considering depreciation and amortization - Cost of sales (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Disclosure of cost of sales [Line Items]      
Depreciation and amortization $ 189,620 $ 226,335 $ 238,879
Third parties services 1,554 3,378 4,318
OEFA and OSINERGMIN contributions 11,749 12,832 21,388
Cost of sales 652,613 799,582 967,696
Sociedad Minera Cerro Verde S.A.A. [Member]      
Disclosure of cost of sales [Line Items]      
Materials and supplies 581,658 693,292 693,316
Depreciation and amortization 451,001 523,512 512,298
Labor (a) 288,104 285,081 357,692
Energy 200,794 228,853 254,243
Third parties services 164,590 181,215 159,514
Incremental costs related to COVID-19 pandemic 95,702    
Change in finished goods inventory 11,320 11,488  
Change in work in process inventory 10,391 (2,290) (5,723)
Depreciation for right-of-use assets (see Note 7 and 10(a)) 7,399 7,069  
Variable lease payments, low-value and short-term leases (see Note 10(a)) 5,889 6,828 7,904
OEFA and OSINERGMIN contributions 2,000 2,923 2,743
Management Fees (49,575) (23,427) (8,513)
Other costs 39,982 47,033 45,402
Cost of sales $ 1,809,255 $ 1,961,577 $ 2,018,876