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Disclosure of information on segments - Disaggregated revenue information (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross $ 1,035,173   $ 1,435,624
Revenue from contracts with customers 860,825 $ 1,157,338 1,238,909
Ucchuchacua [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross 227,591   321,011
Revenue from contracts with customers 184,982 257,840 266,482
Orcopampa [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross 59,000   258,102
Revenue from contracts with customers 58,796 153,240 256,957
Julcani [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross 42,873   45,236
Revenue from contracts with customers 39,639 33,864 41,120
Tambomayo [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross 206,382   120,730
Revenue from contracts with customers 186,668 225,339 118,376
Colquijirca [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross 449,404   517,841
Revenue from contracts with customers 294,904 339,581 333,097
La Zanja [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross 43,998   164,923
Revenue from contracts with customers 43,894 96,600 163,995
Energy generation and transmission [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross 0   0
Revenue from contracts with customers 59,690 62,962 60,639
Insurance brokerage [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross 0   0
Revenue from contracts with customers 15,687 14,986 14,377
Rental of mining concessions [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross 0   0
Revenue from contracts with customers 22,297 20,385 20,739
Holding of investment in shares [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross 0   0
Revenue from contracts with customers 615 615 615
Industrial activities [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross 6,046   6,317
Revenue from contracts with customers 25,603 26,564 25,975
Corporates [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross 0   34,132
Revenue from contracts with customers 0 0 34,016
Adjustments and eliminations [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross (121)   (32,668)
Revenue from contracts with customers (71,950) (74,638) (108,082)
Construction and engineering [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross     0
Revenue from contracts with customers     10,603
Reportable segments [member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross 1,035,294   1,468,292
Revenue from contracts with customers 932,775 1,231,976 1,346,991
Metal and concentrates sales [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 814,867 1,112,952 1,188,473
Metal and concentrates sales [Member] | Operating Segments [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 814,867 1,112,952 1,188,473
Metal and concentrates sales [Member] | Ucchuchacua [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 184,982 257,840 266,482
Metal and concentrates sales [Member] | Ucchuchacua [Member] | Operating Segments [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 184,982 257,840 266,482
Metal and concentrates sales [Member] | Ucchuchacua [Member] | Elimination of intersegment amounts [member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Metal and concentrates sales [Member] | Orcopampa [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 58,796 153,240 256,957
Metal and concentrates sales [Member] | Orcopampa [Member] | Operating Segments [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 58,796 153,240 256,957
Metal and concentrates sales [Member] | Orcopampa [Member] | Elimination of intersegment amounts [member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Metal and concentrates sales [Member] | Julcani [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 39,639 33,864 41,120
Metal and concentrates sales [Member] | Julcani [Member] | Operating Segments [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 39,639 33,864 41,120
Metal and concentrates sales [Member] | Julcani [Member] | Elimination of intersegment amounts [member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Metal and concentrates sales [Member] | Tambomayo [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 186,668 225,339 118,376
Metal and concentrates sales [Member] | Tambomayo [Member] | Operating Segments [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 186,668 225,339 118,376
Metal and concentrates sales [Member] | Tambomayo [Member] | Elimination of intersegment amounts [member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0  
Metal and concentrates sales [Member] | Colquijirca [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 294,904 339,581 333,097
Metal and concentrates sales [Member] | Colquijirca [Member] | Operating Segments [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 294,842 339,414 333,097
Metal and concentrates sales [Member] | Colquijirca [Member] | Elimination of intersegment amounts [member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers (62) (167) 0
Metal and concentrates sales [Member] | La Zanja [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 43,894 96,600 163,995
Metal and concentrates sales [Member] | La Zanja [Member] | Operating Segments [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 43,894 96,600 132,108
Metal and concentrates sales [Member] | La Zanja [Member] | Elimination of intersegment amounts [member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 (31,887)
Metal and concentrates sales [Member] | Energy generation and transmission [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Metal and concentrates sales [Member] | Energy generation and transmission [Member] | Operating Segments [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Metal and concentrates sales [Member] | Energy generation and transmission [Member] | Elimination of intersegment amounts [member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Metal and concentrates sales [Member] | Insurance brokerage [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Metal and concentrates sales [Member] | Insurance brokerage [Member] | Operating Segments [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Metal and concentrates sales [Member] | Insurance brokerage [Member] | Elimination of intersegment amounts [member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Metal and concentrates sales [Member] | Rental of mining concessions [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Metal and concentrates sales [Member] | Rental of mining concessions [Member] | Operating Segments [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Metal and concentrates sales [Member] | Rental of mining concessions [Member] | Elimination of intersegment amounts [member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Metal and concentrates sales [Member] | Holding of investment in shares [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Metal and concentrates sales [Member] | Holding of investment in shares [Member] | Operating Segments [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Metal and concentrates sales [Member] | Holding of investment in shares [Member] | Elimination of intersegment amounts [member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Metal and concentrates sales [Member] | Industrial activities [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 6,046 6,655 6,317
Metal and concentrates sales [Member] | Industrial activities [Member] | Operating Segments [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 6,046 6,655 6,317
Metal and concentrates sales [Member] | Industrial activities [Member] | Elimination of intersegment amounts [member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Metal and concentrates sales [Member] | Corporates [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 34,016
Metal and concentrates sales [Member] | Corporates [Member] | Operating Segments [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 34,016
Metal and concentrates sales [Member] | Corporates [Member] | Elimination of intersegment amounts [member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Metal and concentrates sales [Member] | Adjustments and eliminations [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers (62) (167) (31,887)
Metal and concentrates sales [Member] | Adjustments and eliminations [Member] | Operating Segments [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Metal and concentrates sales [Member] | Adjustments and eliminations [Member] | Elimination of intersegment amounts [member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers (62) (167) (31,887)
Metal and concentrates sales [Member] | Construction and engineering [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers     0
Metal and concentrates sales [Member] | Construction and engineering [Member] | Operating Segments [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers     0
Metal and concentrates sales [Member] | Construction and engineering [Member] | Elimination of intersegment amounts [member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers     0
Metal and concentrates sales [Member] | Reportable segments [member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 814,929 1,113,119 1,220,360
Metal and concentrates sales [Member] | Reportable segments [member] | Operating Segments [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 814,867 1,112,952 1,188,473
Metal and concentrates sales [Member] | Reportable segments [member] | Elimination of intersegment amounts [member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers (62) (167) (31,887)
Metal and concentrates sales [Member] | Asia [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 105,645 120,519 120,719
Metal and concentrates sales [Member] | Asia [Member] | Ucchuchacua [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 13,622 29,382 19,078
Metal and concentrates sales [Member] | Asia [Member] | Orcopampa [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Metal and concentrates sales [Member] | Asia [Member] | Julcani [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 6,598 9,115 12,140
Metal and concentrates sales [Member] | Asia [Member] | Tambomayo [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 27,365 0  
Metal and concentrates sales [Member] | Asia [Member] | Colquijirca [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 58,060 82,022 89,501
Metal and concentrates sales [Member] | Asia [Member] | La Zanja [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Metal and concentrates sales [Member] | Asia [Member] | Energy generation and transmission [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Metal and concentrates sales [Member] | Asia [Member] | Insurance brokerage [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Metal and concentrates sales [Member] | Asia [Member] | Rental of mining concessions [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Metal and concentrates sales [Member] | Asia [Member] | Holding of investment in shares [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Metal and concentrates sales [Member] | Asia [Member] | Industrial activities [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Metal and concentrates sales [Member] | Asia [Member] | Corporates [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Metal and concentrates sales [Member] | Asia [Member] | Adjustments and eliminations [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Metal and concentrates sales [Member] | Asia [Member] | Construction and engineering [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers     0
Metal and concentrates sales [Member] | Asia [Member] | Reportable segments [member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 105,645 120,519 120,719
Metal and concentrates sales [Member] | Europe [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 60,475 100,792 79,837
Metal and concentrates sales [Member] | Europe [Member] | Ucchuchacua [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 27,848 57,472 38,104
Metal and concentrates sales [Member] | Europe [Member] | Orcopampa [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Metal and concentrates sales [Member] | Europe [Member] | Julcani [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 22,590 9,488 15,931
Metal and concentrates sales [Member] | Europe [Member] | Tambomayo [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 135 2,760  
Metal and concentrates sales [Member] | Europe [Member] | Colquijirca [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 3,820
Metal and concentrates sales [Member] | Europe [Member] | La Zanja [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 5,885 26,074 5,513
Metal and concentrates sales [Member] | Europe [Member] | Energy generation and transmission [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Metal and concentrates sales [Member] | Europe [Member] | Insurance brokerage [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Metal and concentrates sales [Member] | Europe [Member] | Rental of mining concessions [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Metal and concentrates sales [Member] | Europe [Member] | Holding of investment in shares [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Metal and concentrates sales [Member] | Europe [Member] | Industrial activities [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 4,017 4,998 1,689
Metal and concentrates sales [Member] | Europe [Member] | Corporates [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 14,780
Metal and concentrates sales [Member] | Europe [Member] | Adjustments and eliminations [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Metal and concentrates sales [Member] | Europe [Member] | Construction and engineering [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers     0
Metal and concentrates sales [Member] | Europe [Member] | Reportable segments [member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 60,475 100,792 79,837
Metal and concentrates sales [Member] | Peru [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 476,978 521,017 516,054
Metal and concentrates sales [Member] | Peru [Member] | Ucchuchacua [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 143,512 170,986 209,300
Metal and concentrates sales [Member] | Peru [Member] | Orcopampa [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 4,833 10,808 17,774
Metal and concentrates sales [Member] | Peru [Member] | Julcani [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 10,451 15,261 13,049
Metal and concentrates sales [Member] | Peru [Member] | Tambomayo [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 79,631 63,049 34,337
Metal and concentrates sales [Member] | Peru [Member] | Colquijirca [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 236,844 257,559 239,317
Metal and concentrates sales [Member] | Peru [Member] | La Zanja [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 683 2,770 32,607
Metal and concentrates sales [Member] | Peru [Member] | Energy generation and transmission [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Metal and concentrates sales [Member] | Peru [Member] | Insurance brokerage [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Metal and concentrates sales [Member] | Peru [Member] | Rental of mining concessions [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Metal and concentrates sales [Member] | Peru [Member] | Holding of investment in shares [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Metal and concentrates sales [Member] | Peru [Member] | Industrial activities [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 1,086 751 852
Metal and concentrates sales [Member] | Peru [Member] | Corporates [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 705
Metal and concentrates sales [Member] | Peru [Member] | Adjustments and eliminations [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers (62) (167) (31,887)
Metal and concentrates sales [Member] | Peru [Member] | Construction and engineering [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers     0
Metal and concentrates sales [Member] | Peru [Member] | Reportable segments [member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 477,040 521,184 547,941
Metal and concentrates sales [Member] | America - other than Peru [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 171,769 370,624 471,863
Metal and concentrates sales [Member] | America - other than Peru [Member] | Ucchuchacua [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Metal and concentrates sales [Member] | America - other than Peru [Member] | Orcopampa [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 53,963 142,432 239,183
Metal and concentrates sales [Member] | America - other than Peru [Member] | Julcani [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Metal and concentrates sales [Member] | America - other than Peru [Member] | Tambomayo [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 79,537 159,530 84,039
Metal and concentrates sales [Member] | America - other than Peru [Member] | Colquijirca [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 459
Metal and concentrates sales [Member] | America - other than Peru [Member] | La Zanja [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 37,326 67,756 125,875
Metal and concentrates sales [Member] | America - other than Peru [Member] | Energy generation and transmission [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Metal and concentrates sales [Member] | America - other than Peru [Member] | Insurance brokerage [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Metal and concentrates sales [Member] | America - other than Peru [Member] | Rental of mining concessions [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Metal and concentrates sales [Member] | America - other than Peru [Member] | Holding of investment in shares [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Metal and concentrates sales [Member] | America - other than Peru [Member] | Industrial activities [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 943 906 3,776
Metal and concentrates sales [Member] | America - other than Peru [Member] | Corporates [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 18,531
Metal and concentrates sales [Member] | America - other than Peru [Member] | Adjustments and eliminations [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Metal and concentrates sales [Member] | America - other than Peru [Member] | Construction and engineering [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers     0
Metal and concentrates sales [Member] | America - other than Peru [Member] | Reportable segments [member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 171,769 370,624 471,863
Services [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 23,661 24,001 29,697
Services [Member] | Operating Segments [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 23,661 24,001 29,697
Services [Member] | Ucchuchacua [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Services [Member] | Ucchuchacua [Member] | Operating Segments [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Services [Member] | Ucchuchacua [Member] | Elimination of intersegment amounts [member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Services [Member] | Orcopampa [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Services [Member] | Orcopampa [Member] | Operating Segments [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Services [Member] | Orcopampa [Member] | Elimination of intersegment amounts [member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Services [Member] | Julcani [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Services [Member] | Julcani [Member] | Operating Segments [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Services [Member] | Julcani [Member] | Elimination of intersegment amounts [member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Services [Member] | Tambomayo [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0  
Services [Member] | Tambomayo [Member] | Operating Segments [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0  
Services [Member] | Tambomayo [Member] | Elimination of intersegment amounts [member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0  
Services [Member] | Colquijirca [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Services [Member] | Colquijirca [Member] | Operating Segments [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Services [Member] | Colquijirca [Member] | Elimination of intersegment amounts [member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Services [Member] | La Zanja [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Services [Member] | La Zanja [Member] | Operating Segments [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Services [Member] | La Zanja [Member] | Elimination of intersegment amounts [member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Services [Member] | Energy generation and transmission [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 59,690 62,962 60,639
Services [Member] | Energy generation and transmission [Member] | Operating Segments [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 7,974 9,015 9,412
Services [Member] | Energy generation and transmission [Member] | Elimination of intersegment amounts [member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers (51,716) (53,947) (51,227)
Services [Member] | Insurance brokerage [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 15,687 14,986 14,377
Services [Member] | Insurance brokerage [Member] | Operating Segments [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 15,687 14,986 14,377
Services [Member] | Insurance brokerage [Member] | Elimination of intersegment amounts [member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Services [Member] | Rental of mining concessions [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Services [Member] | Rental of mining concessions [Member] | Operating Segments [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Services [Member] | Rental of mining concessions [Member] | Elimination of intersegment amounts [member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Services [Member] | Holding of investment in shares [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 615 615 615
Services [Member] | Holding of investment in shares [Member] | Operating Segments [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Services [Member] | Holding of investment in shares [Member] | Elimination of intersegment amounts [member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers (615) (615) (615)
Services [Member] | Industrial activities [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 19,557 19,909 19,658
Services [Member] | Industrial activities [Member] | Operating Segments [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Services [Member] | Industrial activities [Member] | Elimination of intersegment amounts [member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers (19,557) (19,909) (19,658)
Services [Member] | Corporates [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Services [Member] | Corporates [Member] | Operating Segments [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Services [Member] | Corporates [Member] | Elimination of intersegment amounts [member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Services [Member] | Adjustments and eliminations [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers (71,888) (74,471) (76,195)
Services [Member] | Adjustments and eliminations [Member] | Operating Segments [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Services [Member] | Adjustments and eliminations [Member] | Elimination of intersegment amounts [member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers (71,888) (74,471) (76,195)
Services [Member] | Construction and engineering [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers     10,603
Services [Member] | Construction and engineering [Member] | Operating Segments [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers     5,908
Services [Member] | Construction and engineering [Member] | Elimination of intersegment amounts [member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers     (4,695)
Services [Member] | Reportable segments [member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 95,549 98,472 105,892
Services [Member] | Reportable segments [member] | Operating Segments [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 23,661 24,001 29,697
Services [Member] | Reportable segments [member] | Elimination of intersegment amounts [member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers (71,888) (74,471) (76,195)
Services [Member] | Europe [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 30    
Services [Member] | Europe [Member] | Ucchuchacua [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0    
Services [Member] | Europe [Member] | Orcopampa [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0    
Services [Member] | Europe [Member] | Julcani [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0    
Services [Member] | Europe [Member] | Tambomayo [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0    
Services [Member] | Europe [Member] | Colquijirca [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0    
Services [Member] | Europe [Member] | La Zanja [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0    
Services [Member] | Europe [Member] | Energy generation and transmission [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0    
Services [Member] | Europe [Member] | Insurance brokerage [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 30    
Services [Member] | Europe [Member] | Rental of mining concessions [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0    
Services [Member] | Europe [Member] | Holding of investment in shares [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0    
Services [Member] | Europe [Member] | Industrial activities [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0    
Services [Member] | Europe [Member] | Corporates [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0    
Services [Member] | Europe [Member] | Adjustments and eliminations [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0    
Services [Member] | Europe [Member] | Reportable segments [member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 30    
Services [Member] | Peru [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 23,501 23,712 14,903
Services [Member] | Peru [Member] | Ucchuchacua [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Services [Member] | Peru [Member] | Orcopampa [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Services [Member] | Peru [Member] | Julcani [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Services [Member] | Peru [Member] | Tambomayo [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0  
Services [Member] | Peru [Member] | Colquijirca [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Services [Member] | Peru [Member] | La Zanja [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Services [Member] | Peru [Member] | Energy generation and transmission [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 59,690 62,962 60,639
Services [Member] | Peru [Member] | Insurance brokerage [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 15,527 14,787 14,205
Services [Member] | Peru [Member] | Rental of mining concessions [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Services [Member] | Peru [Member] | Holding of investment in shares [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 615 615 615
Services [Member] | Peru [Member] | Industrial activities [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 19,557 19,909 19,658
Services [Member] | Peru [Member] | Corporates [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Services [Member] | Peru [Member] | Adjustments and eliminations [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers (71,888) (74,561) (90,228)
Services [Member] | Peru [Member] | Construction and engineering [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers     10,014
Services [Member] | Peru [Member] | Reportable segments [member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 95,389 98,273 105,131
Services [Member] | America - other than Peru [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 130 289 14,794
Services [Member] | America - other than Peru [Member] | Ucchuchacua [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Services [Member] | America - other than Peru [Member] | Orcopampa [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Services [Member] | America - other than Peru [Member] | Julcani [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Services [Member] | America - other than Peru [Member] | Tambomayo [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0  
Services [Member] | America - other than Peru [Member] | Colquijirca [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Services [Member] | America - other than Peru [Member] | La Zanja [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Services [Member] | America - other than Peru [Member] | Energy generation and transmission [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Services [Member] | America - other than Peru [Member] | Insurance brokerage [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 130 199 172
Services [Member] | America - other than Peru [Member] | Rental of mining concessions [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Services [Member] | America - other than Peru [Member] | Holding of investment in shares [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Services [Member] | America - other than Peru [Member] | Industrial activities [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Services [Member] | America - other than Peru [Member] | Corporates [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Services [Member] | America - other than Peru [Member] | Adjustments and eliminations [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 90 14,033
Services [Member] | America - other than Peru [Member] | Construction and engineering [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers     589
Services [Member] | America - other than Peru [Member] | Reportable segments [member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 130 199 761
Royalties [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 22,297 20,385 20,739
Royalties [Member] | Ucchuchacua [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Royalties [Member] | Orcopampa [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Royalties [Member] | Julcani [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Royalties [Member] | Tambomayo [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0  
Royalties [Member] | Colquijirca [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Royalties [Member] | La Zanja [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Royalties [Member] | Energy generation and transmission [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Royalties [Member] | Insurance brokerage [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Royalties [Member] | Rental of mining concessions [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 22,297 20,385 20,739
Royalties [Member] | Holding of investment in shares [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Royalties [Member] | Industrial activities [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Royalties [Member] | Corporates [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Royalties [Member] | Adjustments and eliminations [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Royalties [Member] | Construction and engineering [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers     0
Royalties [Member] | Reportable segments [member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 22,297 20,385 20,739
Royalties [Member] | Peru [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 22,297 20,385 20,739
Royalties [Member] | Peru [Member] | Ucchuchacua [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Royalties [Member] | Peru [Member] | Orcopampa [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Royalties [Member] | Peru [Member] | Julcani [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Royalties [Member] | Peru [Member] | Tambomayo [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0  
Royalties [Member] | Peru [Member] | Colquijirca [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Royalties [Member] | Peru [Member] | La Zanja [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Royalties [Member] | Peru [Member] | Energy generation and transmission [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Royalties [Member] | Peru [Member] | Insurance brokerage [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Royalties [Member] | Peru [Member] | Rental of mining concessions [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 22,297 20,385 20,739
Royalties [Member] | Peru [Member] | Holding of investment in shares [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Royalties [Member] | Peru [Member] | Industrial activities [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Royalties [Member] | Peru [Member] | Corporates [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Royalties [Member] | Peru [Member] | Adjustments and eliminations [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Royalties [Member] | Peru [Member] | Construction and engineering [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers     0
Royalties [Member] | Peru [Member] | Reportable segments [member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 22,297 20,385 20,739
Silver [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross 298,171 362,122 393,257
Silver [Member] | Ucchuchacua [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross 159,713 217,843 256,608
Silver [Member] | Orcopampa [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross 263 5,243 9,595
Silver [Member] | Julcani [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross 40,889 35,307 40,384
Silver [Member] | Tambomayo [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross 38,112 54,109 27,285
Silver [Member] | Colquijirca [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross 57,903 46,060 54,629
Silver [Member] | La Zanja [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross 1,300 3,583 4,434
Silver [Member] | Energy generation and transmission [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross 0 0 0
Silver [Member] | Insurance brokerage [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross 0 0 0
Silver [Member] | Rental of mining concessions [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross 0 0 0
Silver [Member] | Holding of investment in shares [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross 0 0 0
Silver [Member] | Industrial activities [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross 0 0 0
Silver [Member] | Corporates [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross 0 0 1,257
Silver [Member] | Adjustments and eliminations [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross (9) (23) (935)
Silver [Member] | Construction and engineering [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross     0
Silver [Member] | Reportable segments [member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross 298,180 362,145 394,192
Copper [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross 238,304 274,761 268,527
Copper [Member] | Ucchuchacua [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross 0 0 0
Copper [Member] | Orcopampa [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross 0 (221) 598
Copper [Member] | Julcani [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross 79 129 192
Copper [Member] | Tambomayo [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross 0 0  
Copper [Member] | Colquijirca [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross 238,327 275,119 267,737
Copper [Member] | La Zanja [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross 0 0 0
Copper [Member] | Energy generation and transmission [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross 0 0 0
Copper [Member] | Insurance brokerage [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross 0 0 0
Copper [Member] | Rental of mining concessions [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross 0 0 0
Copper [Member] | Holding of investment in shares [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross 0 0 0
Copper [Member] | Industrial activities [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross 0 0 0
Copper [Member] | Corporates [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross 0 0 0
Copper [Member] | Adjustments and eliminations [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross (102) (266) 0
Copper [Member] | Construction and engineering [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross     0
Copper [Member] | Reportable segments [member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross 238,406 275,027 268,527
Zinc [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross 149,317 164,666 170,518
Zinc [Member] | Ucchuchacua [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross 38,143 45,194 31,814
Zinc [Member] | Orcopampa [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross 0 0 0
Zinc [Member] | Julcani [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross 0 0 0
Zinc [Member] | Tambomayo [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross 19,867 18,197 7,914
Zinc [Member] | Colquijirca [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross 91,307 101,275 130,790
Zinc [Member] | La Zanja [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross 0 0 0
Zinc [Member] | Energy generation and transmission [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross 0 0 0
Zinc [Member] | Insurance brokerage [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross 0 0 0
Zinc [Member] | Rental of mining concessions [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross 0 0 0
Zinc [Member] | Holding of investment in shares [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross 0 0 0
Zinc [Member] | Industrial activities [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross 0 0 0
Zinc [Member] | Corporates [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross 0 0 0
Zinc [Member] | Adjustments and eliminations [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross 0 0 0
Zinc [Member] | Construction and engineering [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross     0
Zinc [Member] | Reportable segments [member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross 149,317 164,666 170,518
Lead [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross 89,141 85,555 85,957
Lead [Member] | Ucchuchacua [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross 29,735 36,238 32,244
Lead [Member] | Orcopampa [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross 0 0 0
Lead [Member] | Julcani [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross 1,627 1,996 4,660
Lead [Member] | Tambomayo [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross 14,016 6,703 4,735
Lead [Member] | Colquijirca [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross 43,763 40,618 44,318
Lead [Member] | La Zanja [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross 0 0 0
Lead [Member] | Energy generation and transmission [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross 0 0 0
Lead [Member] | Insurance brokerage [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross 0 0 0
Lead [Member] | Rental of mining concessions [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross 0 0 0
Lead [Member] | Holding of investment in shares [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross 0 0 0
Lead [Member] | Industrial activities [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross 0 0 0
Lead [Member] | Corporates [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross 0 0 0
Lead [Member] | Adjustments and eliminations [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross 0 0 0
Lead [Member] | Construction and engineering [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross     0
Lead [Member] | Reportable segments [member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross 89,141 85,555 85,957
Manganese sulfate [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross 6,046 6,655 6,317
Manganese sulfate [Member] | Ucchuchacua [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross 0 0 0
Manganese sulfate [Member] | Orcopampa [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross 0 0 0
Manganese sulfate [Member] | Julcani [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross 0 0 0
Manganese sulfate [Member] | Tambomayo [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross 0 0  
Manganese sulfate [Member] | Colquijirca [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross 0 0 0
Manganese sulfate [Member] | La Zanja [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross 0 0 0
Manganese sulfate [Member] | Energy generation and transmission [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross 0 0 0
Manganese sulfate [Member] | Insurance brokerage [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross 0 0 0
Manganese sulfate [Member] | Rental of mining concessions [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross 0 0 0
Manganese sulfate [Member] | Holding of investment in shares [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross 0 0 0
Manganese sulfate [Member] | Industrial activities [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross 6,046 6,655 6,317
Manganese sulfate [Member] | Corporates [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross 0 0 0
Manganese sulfate [Member] | Adjustments and eliminations [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross 0 0 0
Manganese sulfate [Member] | Construction and engineering [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross     0
Manganese sulfate [Member] | Reportable segments [member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross 6,046 6,655 6,317
Metal and Concentrates Sales Before Commercial Deductions [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross   1,305,636  
Metal and Concentrates Sales Before Commercial Deductions [Member] | Ucchuchacua [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross   299,286  
Metal and Concentrates Sales Before Commercial Deductions [Member] | Orcopampa [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross   154,114  
Metal and Concentrates Sales Before Commercial Deductions [Member] | Julcani [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross   37,460  
Metal and Concentrates Sales Before Commercial Deductions [Member] | Tambomayo [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross   229,948  
Metal and Concentrates Sales Before Commercial Deductions [Member] | Colquijirca [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross   481,535  
Metal and Concentrates Sales Before Commercial Deductions [Member] | La Zanja [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross   96,941  
Metal and Concentrates Sales Before Commercial Deductions [Member] | Energy generation and transmission [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross   0  
Metal and Concentrates Sales Before Commercial Deductions [Member] | Insurance brokerage [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross   0  
Metal and Concentrates Sales Before Commercial Deductions [Member] | Rental of mining concessions [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross   0  
Metal and Concentrates Sales Before Commercial Deductions [Member] | Holding of investment in shares [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross   0  
Metal and Concentrates Sales Before Commercial Deductions [Member] | Industrial activities [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross   6,655  
Metal and Concentrates Sales Before Commercial Deductions [Member] | Corporates [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross   0  
Metal and Concentrates Sales Before Commercial Deductions [Member] | Adjustments and eliminations [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross   (303)  
Metal and Concentrates Sales Before Commercial Deductions [Member] | Reportable segments [member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross   1,305,939  
Commercial deductions [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 220,306 192,684 247,151
Commercial deductions [Member] | Ucchuchacua [Member]      
Disclosure of information on segments [Line Items]      
Commercial Deductions In Revenue From Contract With Customers (42,609) (41,446) (54,529)
Commercial deductions [Member] | Orcopampa [Member]      
Disclosure of information on segments [Line Items]      
Commercial Deductions In Revenue From Contract With Customers (204) (874) (1,145)
Commercial deductions [Member] | Julcani [Member]      
Disclosure of information on segments [Line Items]      
Commercial Deductions In Revenue From Contract With Customers (3,234) (3,596) (4,116)
Commercial deductions [Member] | Tambomayo [Member]      
Disclosure of information on segments [Line Items]      
Commercial Deductions In Revenue From Contract With Customers (19,714) (4,609) (2,354)
Commercial deductions [Member] | Colquijirca [Member]      
Disclosure of information on segments [Line Items]      
Commercial Deductions In Revenue From Contract With Customers (154,500) (141,954) (184,744)
Commercial deductions [Member] | La Zanja [Member]      
Disclosure of information on segments [Line Items]      
Commercial Deductions In Revenue From Contract With Customers (104) (341) (928)
Commercial deductions [Member] | Energy generation and transmission [Member]      
Disclosure of information on segments [Line Items]      
Commercial Deductions In Revenue From Contract With Customers 0 0 0
Commercial deductions [Member] | Insurance brokerage [Member]      
Disclosure of information on segments [Line Items]      
Commercial Deductions In Revenue From Contract With Customers 0 0 0
Commercial deductions [Member] | Rental of mining concessions [Member]      
Disclosure of information on segments [Line Items]      
Commercial Deductions In Revenue From Contract With Customers 0 0 0
Commercial deductions [Member] | Holding of investment in shares [Member]      
Disclosure of information on segments [Line Items]      
Commercial Deductions In Revenue From Contract With Customers 0 0 0
Commercial deductions [Member] | Industrial activities [Member]      
Disclosure of information on segments [Line Items]      
Commercial Deductions In Revenue From Contract With Customers 0 0 0
Commercial deductions [Member] | Corporates [Member]      
Disclosure of information on segments [Line Items]      
Commercial Deductions In Revenue From Contract With Customers 0 0 (116)
Commercial deductions [Member] | Adjustments and eliminations [Member]      
Disclosure of information on segments [Line Items]      
Commercial Deductions In Revenue From Contract With Customers 59 136 781
Commercial deductions [Member] | Construction and engineering [Member]      
Disclosure of information on segments [Line Items]      
Commercial Deductions In Revenue From Contract With Customers     0
Commercial deductions [Member] | Reportable segments [member]      
Disclosure of information on segments [Line Items]      
Commercial Deductions In Revenue From Contract With Customers (220,365) (192,820) (247,932)
Sales by services [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 23,661 24,001 29,697
Sales by services [Member] | Ucchuchacua [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Sales by services [Member] | Orcopampa [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Sales by services [Member] | Julcani [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Sales by services [Member] | Tambomayo [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0  
Sales by services [Member] | Colquijirca [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Sales by services [Member] | La Zanja [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Sales by services [Member] | Energy generation and transmission [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 59,690 62,962 60,639
Sales by services [Member] | Insurance brokerage [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 15,687 14,986 14,377
Sales by services [Member] | Rental of mining concessions [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Sales by services [Member] | Holding of investment in shares [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 615 615 615
Sales by services [Member] | Industrial activities [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 19,557 19,909 19,658
Sales by services [Member] | Corporates [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Sales by services [Member] | Adjustments and eliminations [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers (71,888) (74,471) (76,195)
Sales by services [Member] | Construction and engineering [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers     10,603
Sales by services [Member] | Reportable segments [member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 95,549 98,472 105,892
Royalties income [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 22,297 20,385 20,739
Royalties income [Member] | Ucchuchacua [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Royalties income [Member] | Orcopampa [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Royalties income [Member] | Julcani [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Royalties income [Member] | Tambomayo [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0  
Royalties income [Member] | Colquijirca [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Royalties income [Member] | La Zanja [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Royalties income [Member] | Energy generation and transmission [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Royalties income [Member] | Insurance brokerage [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Royalties income [Member] | Rental of mining concessions [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 22,297 20,385 20,739
Royalties income [Member] | Holding of investment in shares [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Royalties income [Member] | Industrial activities [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Royalties income [Member] | Corporates [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Royalties income [Member] | Adjustments and eliminations [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 0 0 0
Royalties income [Member] | Construction and engineering [Member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers     0
Royalties income [Member] | Reportable segments [member]      
Disclosure of information on segments [Line Items]      
Revenue from contracts with customers 22,297 20,385 20,739
Indium [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross     66
Indium [Member] | Ucchuchacua [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross     0
Indium [Member] | Orcopampa [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross     0
Indium [Member] | Julcani [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross     0
Indium [Member] | Colquijirca [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross     66
Indium [Member] | La Zanja [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross     0
Indium [Member] | Energy generation and transmission [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross     0
Indium [Member] | Insurance brokerage [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross     0
Indium [Member] | Rental of mining concessions [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross     0
Indium [Member] | Holding of investment in shares [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross     0
Indium [Member] | Industrial activities [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross     0
Indium [Member] | Corporates [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross     0
Indium [Member] | Adjustments and eliminations [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross     0
Indium [Member] | Construction and engineering [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross     0
Indium [Member] | Reportable segments [member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross     66
Gold per ounce [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross 254,194 411,877 510,982
Gold per ounce [Member] | Ucchuchacua [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross 0 11 345
Gold per ounce [Member] | Orcopampa [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross 58,737 149,092 247,909
Gold per ounce [Member] | Julcani [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross 278 28 0
Gold per ounce [Member] | Tambomayo [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross 134,387 150,939 80,796
Gold per ounce [Member] | Colquijirca [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross 18,104 18,463 20,301
Gold per ounce [Member] | La Zanja [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross 42,698 93,358 160,489
Gold per ounce [Member] | Energy generation and transmission [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross 0 0 0
Gold per ounce [Member] | Insurance brokerage [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross 0 0 0
Gold per ounce [Member] | Rental of mining concessions [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross 0 0 0
Gold per ounce [Member] | Holding of investment in shares [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross 0 0 0
Gold per ounce [Member] | Industrial activities [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross 0 0 0
Gold per ounce [Member] | Corporates [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross 0 0 32,875
Gold per ounce [Member] | Adjustments and eliminations [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross (10) (14) (31,733)
Gold per ounce [Member] | Construction and engineering [Member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross     0
Gold per ounce [Member] | Reportable segments [member]      
Disclosure of information on segments [Line Items]      
Revenue From Contract With Customers Gross $ 254,204 $ 411,891 $ 542,715