XML 253 R239.htm IDEA: XBRL DOCUMENT
v3.19.1

Related parties (Details) - Sociedad Minera Cerro Verde S.A.A. [Member] - USD ($) $ in Thousands | Dec. 31, 2018 | Dec. 31, 2017
--- | --- | ---
Balances receivable from related parties [Abstract] |  |  |
Amounts receivable, related party transactions |  | $ 413,351 | $ 477,419
Balances payable to related parties [Abstract] |  |  |
Amounts payable, related party transactions |  | 14,874 | 13,681
Accounts payable - Related parties |  | (8,860) | (8,147)
Accounts payable to related parties |  | 6,014 | 5,534
Accounts Receivables Non Provisional Pricing [Member] |  |  |
Balances receivable from related parties [Abstract] |  |  |
Amounts receivable, related party transactions |  | 67,050 | 2,305
Accounts Receivables Provisional Pricing [Member] |  |  |
Balances receivable from related parties [Abstract] |  |  |
Amounts receivable, related party transactions |  | 365,594 | 409,492
Freeport Minerals Corporation [Member] |  |  |
Balances receivable from related parties [Abstract] |  |  |
Amounts receivable, related party transactions | [1] | 409,688 | 372,327
Balances payable to related parties [Abstract] |  |  |
Amounts payable, related party transactions |  | 8,860 | 8,470
Sumitomo Metal Mining Company, Ltd. [Member] |  |  |
Balances receivable from related parties [Abstract] |  |  |
Amounts receivable, related party transactions | [2] | 12,918 | 19,900
Climax Molybdenum Marketing Corporation [Member] |  |  |
Balances receivable from related parties [Abstract] |  |  |
Amounts receivable, related party transactions | [3] | 10,038 | 19,570
Freeport-McMoRan Sales Company Inc. [Member] |  |  |
Balances payable to related parties [Abstract] |  |  |
Amounts payable, related party transactions |  | 3,192 | 3,601
Minera Freeport-McMoRan South America Ltda [Member] |  |  |
Balances payable to related parties [Abstract] |  |  |
Amounts payable, related party transactions |  | 521 | 1,248
Freeport Cobalt OY [Member] |  |  |
Balances payable to related parties [Abstract] |  |  |
Amounts payable, related party transactions |  | 0 | 296
Minera Freeport-McMoRan South America S.A.C. [Member] |  |  |
Balances payable to related parties [Abstract] |  |  |
Amounts payable, related party transactions |  | 0 | 66
PT Freeport Indonesia [Member] |  |  |
Balances payable to related parties [Abstract] |  |  |
Amounts payable, related party transactions |  | 2,301 | 0
Embedded derivatives [Member] |  |  |
Balances receivable from related parties [Abstract] |  |  |
Amounts receivable, related party transactions | [4] | $ (19,293) | $ 65,622
[1] | Accounts receivable from FMC mainly correspond to sales of copper concentrate and copper cathode. The Company has a long-term agreement with FMC through which it has committed to sell between 70% and 80% of its annual copper concentrate production through December 31, 2021. Terms of the contracts are reviewed annually.
[2] | The Company has a long-term agreement with Sumitomo through which it has committed to sell 21% of its annual copper concentrates production through December 31, 2021. Terms of the contracts are reviewed annually.
[3] | The Company has a long-term agreement with Climax Molybdenum Marketing Corporation (a wholly owned subsidiary of FMC) through which it has committed to sell 100% of its annual molybdenum concentrate production, at a price based on the Metals Week Dealer Oxide price and under a delivery type known as CIF (cost, insurance and freight) through December 31, 2020.
[4] | Reflects the embedded derivative adjustment of US$(19.3) million as of December 31, 2018, and US$65.6 million as of December 31, 2017, associated with accounts receivable from related parties (See Note 2(d) and 22).

X
- References No definition available. + Details
Name: | cik0001013131_BalancesPayableToRelatedPartiesAbstract
Namespace Prefix: | cik0001013131_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | cik0001013131_BalancesReceivableFromRelatedPartiesAbstract
Namespace Prefix: | cik0001013131_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amounts payable resulting from related party transactions. [Refer: Related parties [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 24 -IssueDate 2018-01-01 -Paragraph 20 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=24&date=2018-03-01&anchor=para_20&doctype=Standard -URIDate 2018-03-16 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 24 -IssueDate 2018-01-01 -Paragraph 18 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=24&date=2018-03-01&anchor=para_18_b&doctype=Standard -URIDate 2018-03-16 + Details
Name: | ifrs-full_AmountsPayableRelatedPartyTransactions
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The amounts receivable resulting from related party transactions. [Refer: Related parties [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 24 -IssueDate 2018-01-01 -Paragraph 20 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=24&date=2018-03-01&anchor=para_20&doctype=Standard -URIDate 2018-03-16 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 24 -IssueDate 2018-01-01 -Paragraph 18 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=24&date=2018-03-01&anchor=para_18_b&doctype=Standard -URIDate 2018-03-16 + Details
Name: | ifrs-full_AmountsReceivableRelatedPartyTransactions
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The amount of non-current payables due to related parties. [Refer: Related parties [member]; Payables to related parties] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2018-01-01 -Paragraph 78 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2018-03-01&anchor=para_78&doctype=Standard -URIDate 2018-03-16 + Details
Name: | ifrs-full_NoncurrentPayablesToRelatedParties
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The amount of current payables due to related parties. [Refer: Related parties [member]; Payables to related parties] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2018-01-01 -Paragraph 78 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2018-03-01&anchor=para_78&doctype=Standard -URIDate 2018-03-16 + Details
Name: | ifrs-full_TradeAndOtherCurrentPayablesToRelatedParties
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=cik0001013131_SociedadMineraCerroVerdeSaaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_MeasurementAxis=cik0001013131_AccountsReceivablesNonProvisionalPricingMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_MeasurementAxis=cik0001013131_AccountsReceivablesProvisionalPricingMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CategoriesOfRelatedPartiesAxis=cik0001013131_FreeportMineralsCorporationMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CategoriesOfRelatedPartiesAxis=cik0001013131_SumitomoMetalMiningCompanyLtdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CategoriesOfRelatedPartiesAxis=cik0001013131_ClimaxMolybdenumMarketingCorporationMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CategoriesOfRelatedPartiesAxis=cik0001013131_FreeportmcmoranSalesCompanyIncMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CategoriesOfRelatedPartiesAxis=cik0001013131_MineraFreeportmcmoranSouthAmericaLtdaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CategoriesOfRelatedPartiesAxis=cik0001013131_FreeportCobaltOyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CategoriesOfRelatedPartiesAxis=cik0001013131_MineraFreeportmcmoranSouthAmericaSacMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CategoriesOfRelatedPartiesAxis=cik0001013131_PtFreeportIndonesiaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CategoriesOfRelatedPartiesAxis=cik0001013131_EmbeddedDerivativesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |