Trade and other receivables, net - Movement of allowance for expected credit losses (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Disclosure Of Available for Sale Assets Explanatory [Abstract]
Beginning balance	$ 31,845	$ 32,022	$ 32,102
Provision for other receivables, note 28(a)	409	4	25
Provision for trade receivables, note 25	0	126	0
Provision of the year	409	130	25
Write off during the year	(1,160)	0	(162)
Exchange difference	(197)	(307)	57
Final balance	30,897	31,845	32,022
Trade receivables	22,276	22,128	22,016
Other receivables	$ 8,621	$ 9,717	$ 10,006

Represents the valuation allowance for receivables due a company that are expected to be uncollectible.

No definition available.

Name:	bvn_AllowanceForDoubtfulAccounts
Namespace Prefix:	bvn_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of allowance of receivables classified as other receivables.

+ References

No definition available.

+ Details

Name:	bvn_AllowanceForDoubtfulOtherReceivables
Namespace Prefix:	bvn_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of allowance of receivables classified as trade receivables.

+ References

No definition available.

+ Details

Name:	bvn_AllowanceForDoubtfulTradeReceivables
Namespace Prefix:	bvn_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- References

No definition available.

+ Details

Name:	bvn_DisclosureOfAvailableForSaleAssetsExplanatoryAbstract
Namespace Prefix:	bvn_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

It represents of Provision of other receivables

+ References

No definition available.

+ Details

Name:	bvn_ProvisionForOtherReceivables
Namespace Prefix:	bvn_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

It represents of provision of trade receivables.

+ References

No definition available.

+ Details

Name:	bvn_ProvisionForTradeReceivables
Namespace Prefix:	bvn_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The amount of additional allowance for credit losses of financial assets recognised in profit or loss. [Refer: Allowance account for credit losses of financial assets]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Note Expiry date 2023-01-01
-Name IFRS
-Number 7
-IssueDate 2021-01-01
-Paragraph 16
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2017-en-b&anchor=para_16&doctype=Standard&book=b
-URIDate 2021-03-24

+ Details

Name:	ifrs-full_AdditionalAllowanceRecognisedInProfitOrLossAllowanceAccountForCreditLossesOfFinancialAssets
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	duration

- Definition

The increase (decrease) in the allowance account for credit losses of financial assets resulting from adjustments arising from the passage of time. [Refer: Allowance account for credit losses of financial assets]

+ References

+ Details

Name:	ifrs-full_IncreaseDecreaseThroughAdjustmentsArisingFromPassageOfTimeAllowanceAccountForCreditLossesOfFinancialAssets
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The increase (decrease) in an allowance account for credit losses of financial assets resulting from the net exchange differences arising when the financial statements are translated from the functional currency into a different presentation currency, including the translation of a foreign operation into the presentation currency of the reporting entity. [Refer: Allowance account for credit losses of financial assets]

+ References

+ Details

Name:	ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesAllowanceAccountForCreditLossesOfFinancialAssets
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration