XML 212 R187.htm IDEA: XBRL DOCUMENT
v3.21.1

Shareholders' equity, net - Capital stock (Details) S/ in Thousands, $ in Thousands | Dec. 31, 2020 PEN (S/) shares | Dec. 31, 2020 USD ($) shares | Dec. 31, 2019 USD ($)
--- | --- | --- | ---
Disclosure of Shareholders' equity, net [Line Items] |  |  |
Number of shares | (350,056,012) | (350,056,012) |
Capital stock | $ |  | $ (750,497) | $ (750,497)
Common shares [member] |  |  |
Disclosure of Shareholders' equity, net [Line Items] |  |  |
Number of shares | (274,889,924) | (274,889,924) |
Capital stock | S/ (2,748,899) | $ (813,162) |
Treasury shares [member] |  |  |
Disclosure of Shareholders' equity, net [Line Items] |  |  |
Number of shares | (21,174,734) | (21,174,734) |
Capital stock | S/ (211,747) | $ (62,665) |
Total Shares [Member] |  |  |
Disclosure of Shareholders' equity, net [Line Items] |  |  |
Number of shares | (253,715,190) | (253,715,190) |
Capital stock | S/ (2,537,152) | $ (750,497) |

X
- Definition Shareholders' equity, net + References No definition available. + Details
Name: | bvn_DisclosureOfShareholdersEquityNetLineItems
Namespace Prefix: | bvn_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The nominal value of capital issued. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 1 -IssueDate 2020-01-01 -Paragraph 78 -Subparagraph e -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_78_e&doctype=Standard -URIDate 2020-01-01 + Details
Name: | ifrs-full_IssuedCapital
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The number of shares that have been authorised and issued, reduced by treasury shares held. [Refer: Treasury shares] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2020-01-01 -Paragraph 79 -Subparagraph a -Clause iv -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_79_a_iv&doctype=Standard -URIDate 2020-01-01 + Details
Name: | ifrs-full_NumberOfSharesOutstanding
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | ifrs-full_ClassesOfShareCapitalAxis=ifrs-full_OrdinarySharesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfShareCapitalAxis=ifrs-full_TreasurySharesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfShareCapitalAxis=bvn_TotalSharesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |