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Shareholders' equity (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
IfrsStatementLineItems [Line Items] |  |  |
Translation adjustment on foreign subsidiaries | $ (184,446) | $ 81,413 | $ 64,460
Attributable to NEXA's shareholders | 813,930 | 1,197,324 |
Attributable to non-controlling interests | 246,363 | 254,713 |
Reserve Of Exchange Differences On Translation Including Non Controlling Interest [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Beginning balance, value | (191,467) | (272,880) | (337,340)
Translation adjustment on foreign subsidiaries | (184,446) | 81,413 | 64,460
Ending balance, value | (375,913) | (191,467) | (272,880)
Reserve Of Cash Flow Hedges Including Non Controlling Interest [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Beginning balance, value | 725 | 1,262 | 1,593
Cash flow hedge accounting | 109 | (537) | (331)
Ending balance, value | 834 | 725 | 1,262
Reserve of change in fair value of financial liability attributable to change in credit risk of liability [member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Beginning balance, value | (16,064) | (14,213) | (10,948)
Changes in fair value of financial liabilities related to changes in the Company's own credit risk | (1,037) | (385) | 343
Changes in fair value of investments in equity instruments | (1,256) | (1,466) | (3,608)
Ending balance, value | (18,357) | (16,064) | (14,213)
Accumulated Other Comprehensive Income Including Non Controlling Interest [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Beginning balance, value | (206,806) | (285,831) | (346,695)
Translation adjustment on foreign subsidiaries | (184,446) | 81,413 | 64,460
Cash flow hedge accounting | 109 | (537) | (331)
Changes in fair value of financial liabilities related to changes in the Company's own credit risk | (1,037) | (385) | 343
Changes in fair value of investments in equity instruments | (1,256) | (1,466) | (3,608)
Ending balance, value | (393,436) | $ (206,806) | $ (285,831)
Attributable to NEXA's shareholders | (335,565) |  |
Attributable to non-controlling interests | $ (57,871) |  |

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- Definition The amount of accumulated items of income and expense (including reclassification adjustments) that are not recognised in profit or loss as required or permitted by other IFRSs. [Refer: IFRSs [member]; Other comprehensive income] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2024-01-01 -Paragraph 55 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_55&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition The amount of equity attributable to the owners of the parent. This specifically excludes non-controlling interest. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2024-01-01 -Paragraph 54 -Subparagraph r -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_54_r&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition The amount of equity in a subsidiary not attributable, directly or indirectly, to a parent. [Refer: Total for all subsidiaries [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 10 -IssueDate 2024-01-01 -Paragraph 22 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=10&code=ifrs-tx-2024-en-r&anchor=para_22&doctype=Standard -URIDate 2024-03-27 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2024-01-01 -Paragraph 12 -Subparagraph f -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2024-en-r&anchor=para_12_f&doctype=Standard -URIDate 2024-03-27 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2024-01-01 -Paragraph 54 -Subparagraph q -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_54_q&doctype=Standard -URIDate 2024-03-27 + Details
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