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v3.26.1

Trade accounts receivables (Details 1) - Accumulated impairment [member] - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2025 | Dec. 31, 2024
IfrsStatementLineItems [Line Items] |  |
Balance at the beginning of the year | $ (5,501) | $ (6,561)
Additions | (7,560) | (11,754)
Reversals | 8,488 | 12,084
Foreign exchange (losses) gains | (373) | 730
Balance at the end of year | $ (4,946) | $ (5,501)

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- Definition The movement of reversal to the impairment amount of trade accounts receivables. + References No definition available. + Details
Name: | nexa_DecreaseThroughReversalFinancialAssets
Namespace Prefix: | nexa_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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

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- Definition The element represents disclosure of changes in impairment of trade accounts receivable table text block. + References No definition available. + Details
Name: | nexa_ImpairmentOfTradeAccountsReceivables
Namespace Prefix: | nexa_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition The movement of additions to the impairment amount of trade accounts receivables. + References No definition available. + Details
Name: | nexa_TradeReceivableImpairmentAdditions
Namespace Prefix: | nexa_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition The foreign exchange losses to the impairment amount of trade accounts receivables. + References No definition available. + Details
Name: | nexa_TradeReceivableImpairmentForeignExchangeGains
Namespace Prefix: | nexa_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Details
Name: | ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis=ifrs-full_AccumulatedImpairmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |