v3.26.1
Cover
 12 Months Ended
Dec. 31, 2025
shares
Entity Addresses [Line Items]  
Document Type 20-F
Amendment Flag false
Document Registration Statement false
Document Annual Report true
Document Transition Report false
Document Shell Company Report false
Document Period End Date Dec. 31, 2025
Document Fiscal Period Focus FY
Document Fiscal Year Focus 2025
Current Fiscal Year End Date --12-31
Entity File Number 001-38256
Entity Registrant Name NEXA RESOURCES S.A.
Entity Central Index Key 0001713930
Entity Incorporation, State or Country Code N4
Entity Address, Address Line One 37A, Avenue J.F. Kennedy
Entity Address, City or Town Luxembourg
Entity Address, Country LU
Entity Address, Postal Zip Code 1855
Title of 12(b) Security Common shares, each with par value of US$1.00
Trading Symbol NEXA
Security Exchange Name NYSE
Entity Well-known Seasoned Issuer No
Entity Voluntary Filers No
Entity Current Reporting Status Yes
Entity Interactive Data Current Yes
Entity Filer Category Accelerated Filer
Entity Emerging Growth Company false
Document Accounting Standard International Financial Reporting Standards
Entity Shell Company false
Entity Common Stock, Shares Outstanding 132,438,611
ICFR Auditor Attestation Flag true
Document Financial Statement Error Correction [Flag] false
Auditor Firm ID 1351
Auditor Name PricewaterhouseCoopers Auditores Independentes Ltda.
Auditor Location Curitiba, Brazil
Business Contact [Member]  
Entity Addresses [Line Items]  
Entity Address, Address Line One 37A, Avenue J.F. Kennedy
Entity Address, City or Town Luxembourg
Entity Address, Country LU
Entity Address, Postal Zip Code 1855
Country Region 352
City Area Code 28
Local Phone Number 26 37 27
Contact Personnel Name José Carlos del Valle