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Trade accounts receivables (Details 1) - Accumulated impairment [member] - Trade receivables [member] - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
IfrsStatementLineItems [Line Items]
Trade receivables impairment provision at the beginning of the year	$ (6,561)	$ (4,326)
Additions	(11,754)	(4,101)
Reversals	12,084	2,023
Foreign exchange (losses) gains	730	(157)
Trade receivable impairment provision at the end of the year	$ (5,501)	$ (6,561)

X

- Definition

The initial amount of impairment of trade accounts receivables.

+ References

No definition available.

+ Details

Name:	nexa_ChangesInImpairmentOfTradeAccountsReceivables
Namespace Prefix:	nexa_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- 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

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 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

X

- 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

X

- Details

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

X

- Details

Name:	ifrs-full_ClassesOfFinancialAssetsAxis=ifrs-full_TradeReceivablesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: