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Transactions with related parties (Details 1) - Minera Yanacocha SRL and subsidiary [Member] - USD ($) $ in Thousands | Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2007
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Balance receivable from related parties [Abstract] |  |  |
Amounts receivable, related party transactions | $ 2,185 | $ 815 |
Balance payable to related parties [Abstract] |  |  |
Amounts payable, related party transactions | 9,962 | 9,052 |
Newmont Peru S.R.L [Member] |  |  |
Balance receivable from related parties [Abstract] |  |  |
Amounts receivable, related party transactions |  | 15 | $ 10
Balance payable to related parties [Abstract] |  |  |
Amounts payable, related party transactions |  | 742 | 1,263
Newmont USA Limited [Member] |  |  |
Balance receivable from related parties [Abstract] |  |  |
Amounts receivable, related party transactions |  | 389 | 1,523
Balance payable to related parties [Abstract] |  |  |
Amounts payable, related party transactions |  | 1,403 | 2,548
Suriname Gold Company LLC [Member] |  |  |
Balance receivable from related parties [Abstract] |  |  |
Amounts receivable, related party transactions |  | 281 | 567
Newmont Technologies Limited [Member] |  |  |
Balance receivable from related parties [Abstract] |  |  |
Amounts receivable, related party transactions |  | 120 | 5
Balance payable to related parties [Abstract] |  |  |
Amounts payable, related party transactions |  | 1,007 | 960
S.M.R.L. Chaupiloma Dos de Cajamarca c [Member] |  |  |
Balance payable to related parties [Abstract] |  |  |
Amounts payable, related party transactions |  | 5,846 | 5,144
Others [Member] |  |  |
Balance receivable from related parties [Abstract] |  |  |
Amounts receivable, related party transactions |  | 10 | 1
Balance payable to related parties [Abstract] |  |  |
Amounts payable, related party transactions |  | 28 | 5
Newmont International Service Limited [Member] |  |  |
Balance payable to related parties [Abstract] |  |  |
Amounts payable, related party transactions |  | 26 | $ 42
NVL, USA Limited, Delaware [Member] |  |  |
Balance receivable from related parties [Abstract] |  |  |
Amounts receivable, related party transactions | $ 79 | $ 0 |

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