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Basis of preparation of the consolidated financial statements (Details 5) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
IfrsStatementLineItems [Line Items] |  |  |
At January 1, 2024 | $ 1,452,037 | $ 1,708,173 | $ 1,642,388
Net loss for the year | (187,407) | (291,810) | 76,988
Other comprehensive income (loss) for the year | (186,630) | 79,025 | 60,864
Total comprehensive (loss) income for the year | (374,037) | (212,785) | 137,852
At December 31, 2024 | 1,060,293 | 1,452,037 | 1,708,173
Retained earnings [member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
At January 1, 2024 | (1,031,325) | (739,357) | (745,178)
Net loss for the year | (205,030) | (291,968) | 49,695
Other comprehensive income (loss) for the year |  |  |
Total comprehensive (loss) income for the year | (205,030) | (291,968) | 49,695
At December 31, 2024 | (1,240,990) | (1,031,325) | (739,357)
Accumulated other comprehensive income [member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
At January 1, 2024 | (161,836) | (235,964) | (292,052)
Net loss for the year |  |  |
Other comprehensive income (loss) for the year | (173,729) | 74,128 | 56,088
Total comprehensive (loss) income for the year | (173,729) | 74,128 | 56,088
At December 31, 2024 | (335,565) | (161,836) | (235,964)
Total Nexa Shareholders [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
At January 1, 2024 | 1,197,324 | 1,440,164 | 1,384,381
Net loss for the year | (205,030) | (291,968) | 49,695
Other comprehensive income (loss) for the year | (173,729) | 74,128 | 56,088
Total comprehensive (loss) income for the year | (378,759) | (217,840) | 105,783
At December 31, 2024 | 813,930 | 1,197,324 | 1,440,164
Previously stated [member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
At January 1, 2024 | 1,456,634 | 1,710,254 | 1,644,280
Net loss for the year |  | (289,196) | 76,394
Other comprehensive income (loss) for the year |  | 78,927 | 61,647
Total comprehensive (loss) income for the year |  | (210,269) | 138,041
At December 31, 2024 |  | 1,456,634 | 1,710,254
Previously stated [member] | Retained earnings [member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
At January 1, 2024 | (1,030,435) | (741,081) | (746,308)
Net loss for the year |  | (289,354) | 49,101
Other comprehensive income (loss) for the year |  |  |
Total comprehensive (loss) income for the year |  | (289,354) | 49,101
At December 31, 2024 |  | (1,030,435) | (741,081)
Previously stated [member] | Accumulated other comprehensive income [member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
At January 1, 2024 | (158,129) | (232,159) | (289,030)
Net loss for the year |  |  |
Other comprehensive income (loss) for the year |  | 74,030 | 56,871
Total comprehensive (loss) income for the year |  | 74,030 | 56,871
At December 31, 2024 |  | (158,129) | (232,159)
Previously stated [member] | Total Nexa Shareholders [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
At January 1, 2024 | 1,201,921 | 1,442,245 | 1,386,273
Net loss for the year |  | (289,354) | 49,101
Other comprehensive income (loss) for the year |  | 74,030 | 56,871
Total comprehensive (loss) income for the year |  | (215,324) | 105,972
At December 31, 2024 |  | 1,201,921 | 1,442,245
Adjustments [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
At January 1, 2024 | (4,597) | (2,081) | (1,892)
Net loss for the year |  | (2,614) | 594
Other comprehensive income (loss) for the year |  | 98 | (783)
Total comprehensive (loss) income for the year |  | (2,516) | (189)
At December 31, 2024 |  | (4,597) | (2,081)
Adjustments [Member] | Retained earnings [member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
At January 1, 2024 | (890) | 1,724 | 1,130
Net loss for the year |  | (2,614) | 594
Other comprehensive income (loss) for the year |  |  |
Total comprehensive (loss) income for the year |  | (2,614) | 594
At December 31, 2024 |  | (890) | 1,724
Adjustments [Member] | Accumulated other comprehensive income [member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
At January 1, 2024 | (3,707) | (3,805) | (3,022)
Net loss for the year |  |  |
Other comprehensive income (loss) for the year |  | 98 | (783)
Total comprehensive (loss) income for the year |  | 98 | (783)
At December 31, 2024 |  | (3,707) | (3,805)
Adjustments [Member] | Total Nexa Shareholders [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
At January 1, 2024 | (4,597) | (2,081) | (1,892)
Net loss for the year |  | (2,614) | 594
Other comprehensive income (loss) for the year |  | 98 | (783)
Total comprehensive (loss) income for the year |  | (2,516) | (189)
At December 31, 2024 |  | (4,597) | (2,081)
Revised [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
At January 1, 2024 | 1,452,037 | 1,708,173 | 1,642,388
Net loss for the year |  | (291,810) | 76,988
Other comprehensive income (loss) for the year |  | 79,025 | 60,864
Total comprehensive (loss) income for the year |  | (212,785) | 137,852
At December 31, 2024 |  | 1,452,037 | 1,708,173
Revised [Member] | Retained earnings [member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
At January 1, 2024 | (1,031,325) | (739,357) | (745,178)
Net loss for the year |  | (291,968) | 49,695
Other comprehensive income (loss) for the year |  |  |
Total comprehensive (loss) income for the year |  | (291,968) | 49,695
At December 31, 2024 |  | (1,031,325) | (739,357)
Revised [Member] | Accumulated other comprehensive income [member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
At January 1, 2024 | (161,836) | (235,964) | (292,052)
Net loss for the year |  |  |
Other comprehensive income (loss) for the year |  | 74,128 | 56,088
Total comprehensive (loss) income for the year |  | 74,128 | 56,088
At December 31, 2024 |  | (161,836) | (235,964)
Revised [Member] | Total Nexa Shareholders [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
At January 1, 2024 | $ 1,197,324 | 1,440,164 | 1,384,381
Net loss for the year |  | (291,968) | 49,695
Other comprehensive income (loss) for the year |  | 74,128 | 56,088
Total comprehensive (loss) income for the year |  | (217,840) | 105,783
At December 31, 2024 |  | $ 1,197,324 | $ 1,440,164

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