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Loans and financings (Details Narrative) - USD ($) $ in Thousands |  |  |  | 12 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | ---
Jun. 12, 2024 | Apr. 09, 2024 | Apr. 02, 2024 | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022 | Jun. 03, 2024 | Apr. 15, 2024 | Apr. 10, 2024 | Mar. 31, 2024
IfrsStatementLineItems [Line Items] |  |  |  |  |  |  |  |  |  |
Debt modification gain |  |  |  | $ 3,142 |  |  |  |  |  |
Nexa Recursos Minerais [Member] |  |  |  |  |  |  |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |  |  |  |  |  |  |
Annual gross interest rate |  |  |  |  |  |  |  |  |  | 5.60%
Coverage percentage |  |  |  |  |  |  |  |  |  | 100.00%
Debenture issuance amount |  | $ 600,000 |  |  |  |  |  |  |  |
Annual interest rate |  | 6.75% | 1.50% |  |  |  |  |  |  |
Note agreement term |  | 10 years | 6 years |  |  |  |  |  |  |
Nexa Recursos Minerais [Member] | EUR [Member] |  |  |  |  |  |  |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |  |  |  |  |  |  |
Principal amount |  |  |  |  |  |  |  |  |  | $ 27,917
Notional value |  |  |  |  |  |  |  |  |  | 27,917
Loans and financing transactions |  |  |  |  |  |  | $ 28,234 |  |  |
Nexa Recursos Minerais [Member] | USD [Member] |  |  |  |  |  |  |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |  |  |  |  |  |  |
Principal amount |  |  |  |  |  |  |  |  |  | 30,244
Loans and financing transactions |  |  |  |  |  |  | 30,683 |  |  |
Interest expenses |  |  |  |  |  |  | 360 |  |  |
Exchange variation |  |  |  |  |  |  | $ 79 |  |  |
Debenture issuance amount |  |  | $ 130,099 |  |  |  |  |  |  |
Environmental and social indicators amount | $ 40,030 |  |  |  |  |  |  |  |  |
Nexa Recursos Minerais [Member] | BRL [Member] |  |  |  |  |  |  |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |  |  |  |  |  |  |
Debenture issuance amount |  |  | $ 650,000 |  |  |  |  |  |  |
Environmental and social indicators amount | $ 200,000 |  |  |  |  |  |  |  |  |
Nexa Resources S A 2027 Notes [Member] |  |  |  |  |  |  |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |  |  |  |  |  |  |
Outstanding principal amount |  |  |  |  |  |  |  |  | $ 484,504 |
Outstanding accrued interest |  |  |  |  |  |  |  |  | 11,285 |
Disbursement amount |  |  |  |  |  |  |  |  | 495,789 |
Debt issueance costs |  |  |  |  |  |  |  |  | $ 2,605 |
Remaining outstanding principal amount |  |  |  | 215,496 |  |  |  |  |  |
Nexa Resources S A 2028 Notes [Member] |  |  |  |  |  |  |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |  |  |  |  |  |  |
Outstanding principal amount |  |  |  |  |  |  |  | $ 99,499 |  |
Outstanding accrued interest |  |  |  |  |  |  |  | 1,563 |  |
Disbursement amount |  |  |  |  |  |  |  | 103,051 |  |
Debt issueance costs |  |  |  |  |  |  |  | 743 |  |
Outstanding accrued interest and premium |  |  |  |  |  |  |  | $ 1,989 |  |
Remaining outstanding principal amount |  |  |  | 400,501 |  |  |  |  |  |
Nexa Resources S A [Member] |  |  |  |  |  |  |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |  |  |  |  |  |  |
Bonds repurchase expenses |  |  |  | 7,069 |  |  |  |  |  |
Bonds repurchase agent fees |  |  |  | $ 1,732 |  |  |  |  |  |
SOFR [Member] |  |  |  |  |  |  |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |  |  |  |  |  |  |
Principal amount |  |  |  |  |  |  |  |  |  | $ 90,000
Interest rate |  |  |  |  |  |  |  |  |  | 1.80%
Transaction interest rate |  |  |  |  |  |  |  |  |  | 2.40%

X
- Definition A class of employee benefits expense that represents social security contributions. [Refer: Employee benefits expense] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 19 -IssueDate 2024-01-01 -Paragraph 9 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=19&code=ifrs-tx-2024-en-r&anchor=para_9&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_SocialSecurityContributions
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The annual gross interest rate of debt. + References No definition available. + Details
Name: | nexa_AnnualGrossInterestRate
Namespace Prefix: | nexa_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition The annual interest rate of debt. + References No definition available. + Details
Name: | nexa_AnnualInterestRate
Namespace Prefix: | nexa_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition The amount of bonds repurchase agent fees. + References No definition available. + Details
Name: | nexa_BondsRepurchaseAgentFees
Namespace Prefix: | nexa_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The amount of bonds repurchase expenses. + References No definition available. + Details
Name: | nexa_BondsRepurchaseExpenses
Namespace Prefix: | nexa_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The coverage percentage of debt. + References No definition available. + Details
Name: | nexa_CoveragePercentage
Namespace Prefix: | nexa_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition The principa amount of debenture issued. + References No definition available. + Details
Name: | nexa_DebentureIssuanceAmount
Namespace Prefix: | nexa_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The amount of debt issuance costs. + References No definition available. + Details
Name: | nexa_DebtIssueanceCosts
Namespace Prefix: | nexa_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The element represents the debt modification related to roll-over. + References No definition available. + Details
Name: | nexa_DebtModificationGain
Namespace Prefix: | nexa_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The total amount expended on the repurchase of Note 27. + References No definition available. + Details
Name: | nexa_DisbursementAmount
Namespace Prefix: | nexa_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The amount related to the exchange variation of debt. + References No definition available. + Details
Name: | nexa_ExchangeVariation
Namespace Prefix: | nexa_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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

X
- Definition The amount related to the interest expenses of debt. + References No definition available. + Details
Name: | nexa_InterestExpenses
Namespace Prefix: | nexa_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The element related to interest rate. + References No definition available. + Details
Name: | nexa_InterestRate
Namespace Prefix: | nexa_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition The amount related to the total payment of debt. + References No definition available. + Details
Name: | nexa_LoansAndFinancingTransactions
Namespace Prefix: | nexa_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The period related to note agreement term. + References No definition available. + Details
Name: | nexa_NoteAgreementTerm
Namespace Prefix: | nexa_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount is the notional value of debt. + References No definition available. + Details
Name: | nexa_NotionalValue
Namespace Prefix: | nexa_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The amount paid in accrued interest on the repurchase of Note 27. + References No definition available. + Details
Name: | nexa_OutstandingAccruedInterest
Namespace Prefix: | nexa_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The amount paid in accrued interest and a premium. + References No definition available. + Details
Name: | nexa_OutstandingPremium
Namespace Prefix: | nexa_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The repurchased value of Note 27. + References No definition available. + Details
Name: | nexa_OutstandingPrincipalAmount
Namespace Prefix: | nexa_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The principal amount of debt. + References No definition available. + Details
Name: | nexa_PrincipalAmount
Namespace Prefix: | nexa_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The amount of remaining outstanding bonds principal amount. + References No definition available. + Details
Name: | nexa_RemainingOutstandingPrincipalAmount
Namespace Prefix: | nexa_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The element related to transaction interest rate. + References No definition available. + Details
Name: | nexa_TransactionInterestRate
Namespace Prefix: | nexa_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=nexa_NexaRecursosMineraisMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
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- Details
Name: | ifrs-full_CurrencyInWhichInformationIsDisplayedAxis=nexa_EURMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | ifrs-full_CurrencyInWhichInformationIsDisplayedAxis=nexa_USDMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | ifrs-full_CurrencyInWhichInformationIsDisplayedAxis=nexa_BRLMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
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- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=nexa_NexaResourcesSA2027NotesMember
Namespace Prefix: |
Data Type: | na
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- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=nexa_NexaResourcesSA2028NotesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
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- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=nexa_NexaResourcesSAMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=nexa_SOFRMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |