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Commitments and contingencies - Letters of credit (Details) - USD ($) | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Disclosure of Commitments and contingencies [Line Items] |  |
Letters of guarantee | $ 101,200,000 | $ 171,800,000
Letters Of Credit Regional Governments And Others [Member] |  |
Disclosure of Commitments and contingencies [Line Items] |  |
Letters of guarantee | $ 6,345,000 | $ 1,420,000

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

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- Definition The amount of letter of credit drawn. + References No definition available. + Details
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Namespace Prefix: | bvn_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |