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Property, plant and equipment (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023
IfrsStatementLineItems [Line Items] |  |
Cost, beginning | $ 5,599,536 | $ 5,135,969
Accumulated amortization and impairment, beginning | (3,160,922) | (2,840,694)
Balance at the beginning of the year | 2,438,614 | 2,295,275
Additions | 323,482 | 310,468
Disposals and write-offs | (16,579) | (4,089)
Depreciation | (225,864) | (219,011)
Impairment (loss) reversal of long-lived assets | (42,404) | (71,956)
Divestments | (13,453) |
Foreign exchange effects | (355,428) | 117,078
Remeasurement | (9,947) | 11,654
Transfers | (913) | (805)
Balance at the end of the year | 2,097,508 | 2,438,614
Cost, ending | 5,018,137 | 5,599,536
Accumulated amortization and impairment, ending | (2,920,629) | (3,160,922)
Lands Dam And Buildings [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Cost, beginning | 1,710,083 | 1,512,360
Accumulated amortization and impairment, beginning | (795,717) | (671,028)
Balance at the beginning of the year | 914,366 |
Disposals and write-offs | (23) |
Depreciation | (104,929) |
Impairment (loss) reversal of long-lived assets | 12,147 |
Divestments | (2,990) |
Foreign exchange effects | (163,559) |
Transfers | 243,150 |
Balance at the end of the year | 898,162 | 914,366
Cost, ending | 1,673,095 | 1,710,083
Accumulated amortization and impairment, ending | $ (774,933) | $ (795,717)
Average annual depreciation rates | 4.00% | 4.00%
Machinery Equipment And Facilities [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Cost, beginning | $ 2,896,565 | $ 2,636,582
Accumulated amortization and impairment, beginning | (2,048,145) | (1,870,591)
Balance at the beginning of the year | 848,420 | 765,991
Additions | 667 | 953
Disposals and write-offs | (3,408) | (212)
Depreciation | (113,679) | (121,004)
Impairment (loss) reversal of long-lived assets | 964 | (27,748)
Divestments | (4,265) |
Foreign exchange effects | (133,501) | 43,495
Transfers | 112,594 | 186,945
Balance at the end of the year | 707,792 | 848,420
Cost, ending | 2,515,318 | 2,896,565
Accumulated amortization and impairment, ending | $ (1,807,526) | $ (2,048,145)
Average annual depreciation rates | 9.00% | 9.00%
Construction in progress [member] |  |
IfrsStatementLineItems [Line Items] |  |
Cost, beginning | $ 512,925 | $ 521,191
Accumulated amortization and impairment, beginning | (67,485) | (65,386)
Balance at the beginning of the year | 445,440 | 455,805
Additions | 276,839 | 309,039
Disposals and write-offs | (8,984) | (3,834)
Impairment (loss) reversal of long-lived assets | (7,149) | (10,890)
Divestments | (290) |
Foreign exchange effects | (34,196) | 18,088
Transfers | (357,948) | (322,768)
Balance at the end of the year | 313,712 | 445,440
Cost, ending | 381,216 | 512,925
Accumulated amortization and impairment, ending | (67,504) | (67,485)
Asset Retirement Obligation [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Cost, beginning | 219,449 | 200,665
Accumulated amortization and impairment, beginning | (139,088) | (125,118)
Balance at the beginning of the year | 80,361 | 75,547
Additions | 45,891 | 318
Depreciation | (5,221) | (5,165)
Impairment (loss) reversal of long-lived assets | 1,495 | (6,691)
Divestments | (1,377) |
Foreign exchange effects | (16,857) | 4,698
Remeasurement | (9,947) | 11,654
Balance at the end of the year | 94,345 | 80,361
Cost, ending | 204,903 | 219,449
Accumulated amortization and impairment, ending | (110,558) | (139,088)
Asset Retirement Obligation [Member] | Gross carrying amount [member] |  |
IfrsStatementLineItems [Line Items] |  |
Cost, beginning | 219,449 |
Cost, ending |  | 219,449
Mining assets [member] |  |
IfrsStatementLineItems [Line Items] |  |
Cost, beginning | 215,913 | 221,077
Accumulated amortization and impairment, beginning | (94,153) | (92,652)
Balance at the beginning of the year | 121,760 | 128,425
Disposals and write-offs | (4,111) |
Depreciation | (834) | (1,372)
Impairment (loss) reversal of long-lived assets | (50,197) | (7,257)
Divestments | (4,150) |
Foreign exchange effects | (2,946) | 1,502
Transfers | 30 | 462
Balance at the end of the year | 59,552 | 121,760
Cost, ending | 208,627 | 215,913
Accumulated amortization and impairment, ending | (149,075) | (94,153)
Mining assets [member] | Gross carrying amount [member] |  |
IfrsStatementLineItems [Line Items] |  |
Cost, beginning | 215,913 |
Cost, ending |  | 215,913
Other property, plant and equipment [member] |  |
IfrsStatementLineItems [Line Items] |  |
Cost, beginning | 44,601 | 44,094
Accumulated amortization and impairment, beginning | (16,334) | (15,919)
Balance at the beginning of the year | 28,267 | 28,175
Additions | 85 | 45
Disposals and write-offs | (53) | (43)
Depreciation | (1,201) | (1,212)
Impairment (loss) reversal of long-lived assets | 336 | (2,513)
Divestments | (381) |
Foreign exchange effects | (4,369) | 1,455
Transfers | 1,261 | 2,360
Balance at the end of the year | 23,945 | 28,267
Cost, ending | 34,978 | 44,601
Accumulated amortization and impairment, ending | (11,033) | (16,334)
Dam And Buildings [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Balance at the beginning of the year | $ 914,366 | 841,332
Additions |  | 113
Depreciation |  | (90,258)
Impairment (loss) reversal of long-lived assets |  | (16,857)
Foreign exchange effects |  | 47,840
Transfers |  | 132,196
Balance at the end of the year |  | $ 914,366

X
- Definition The amount of additions to property, plant and equipment other than those acquired through business combinations. [Refer: Total for all business combinations [member]; Property, plant and equipment] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2024-01-01 -Paragraph 73 -Subparagraph e -Clause i -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=16&code=ifrs-tx-2024-en-r&anchor=para_73_e_i&doctype=Standard -URIDate 2024-03-27 + Details
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X
- Definition The increase (decrease) in property, plant and equipment resulting from transfers. [Refer: Property, plant and equipment] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 16 -IssueDate 2024-01-01 -Paragraph 73 -Subparagraph e -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=16&code=ifrs-tx-2024-en-r&anchor=para_73_e&doctype=Standard -URIDate 2024-03-27 + Details
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X
- Definition The amount of property, plant and equipment that the entity does not separately disclose in the same statement or note. [Refer: Property, plant and equipment] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 16 -IssueDate 2024-01-01 -Paragraph 37 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=16&code=ifrs-tx-2024-en-r&anchor=para_37&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition The disclosure of average annual depreciation rates. + References No definition available. + Details
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- Definition The amount of depreciation of property, plant and equipment. [Refer: Depreciation and amortisation expense; Property, plant and equipment] + References No definition available. + Details
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- Definition The decrease in property, plant and equipment resulting from disposals and retirements. [Refer: Property, plant and equipment] + References No definition available. + Details
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Namespace Prefix: | nexa_
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- Definition The amount of divestments in some mining operations. + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The increase (decrease) in property, plant and equipment resulting from net exchange differences arising on the translation of the financial statements 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: Property, plant and equipment] + References No definition available. + Details
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- References No definition available. + Details
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Balance Type: | na
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- Definition The amount of impairment loss recognised in profit or loss for property, plant and equipment. [Refer: Impairment loss recognised in profit or loss; Property, plant and equipment] + References No definition available. + Details
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- Definition The element related to remeasurament of property, plant and equipment. + References No definition available. + Details
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Namespace Prefix: | nexa_
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- Definition The amount of accumulated depreciation and impairment, ending. + References No definition available. + Details
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- Definition The total cost associated with the acquisition of property, plant, and equipment. + References No definition available. + Details
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Namespace Prefix: | nexa_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
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