XML 284 R259.htm IDEA: XBRL DOCUMENT
v3.21.1

Transactions with associates companies - Additional information (Details) - USD ($) | 12 Months Ended |
--- | --- | ---
Dec. 31, 2020 | Dec. 31, 2019
Disclosure Of Transactions with associates companies [Line Items] |  |
LIBOR interest rate on accounts receivable | 6.25% |
Related parties [member] |  |
Disclosure Of Transactions with associates companies [Line Items] |  |
Amounts receivable, related party transactions | $ 7,000 | $ 31,000
Minera Yanacocha S.R.L. [Member] |  |
Disclosure Of Transactions with associates companies [Line Items] |  |
Royalty percentage | 3 |

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

X
- Definition Percentage of account receivable interest at an annual rate. + References No definition available. + Details
Name: | bvn_LiborInterestRateOnAccountsReceivable
Namespace Prefix: | bvn_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition The percentage of royalty agrees to pay on production sold during the year. + References No definition available. + Details
Name: | bvn_RoyaltyPercentage
Namespace Prefix: | bvn_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | duration

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 2020-01-01 -Paragraph 20 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=24&code=ifrs-tx-2020-en-r&anchor=para_20&doctype=Standard -URIDate 2020-01-01 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 24 -IssueDate 2020-01-01 -Paragraph 18 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=24&code=ifrs-tx-2020-en-r&anchor=para_18_b&doctype=Standard -URIDate 2020-01-01 + Details
Name: | ifrs-full_AmountsReceivableRelatedPartyTransactions
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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

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