v3.26.1
Document and Entity Information
 12 Months Ended
Dec. 31, 2025
shares
Entity Addresses [Line Items]  
Entity Registrant Name Largo Inc.
Entity Central Index Key 0001400438
Current Fiscal Year End Date --12-31
Document Type 40-F
Amendment Flag false
Document Period End Date Dec. 31, 2025
Entity Common Stock, Shares Outstanding 83,673,905
Entity Current Reporting Status Yes
Document Fiscal Year Focus 2025
Document Fiscal Period Focus FY
Entity Emerging Growth Company true
Entity Ex Transition Period false
Entity Interactive Data Current Yes
Entity File Number 001-40333
Entity Incorporation, State or Country Code Z4
Entity Address, Address Line One 1 First Canadian Place
Entity Address, Address Line Two 100 King Street West, Suite 1600
Entity Address, City or Town Toronto
Entity Address, State or Province ON
Entity Address, Postal Zip Code M5X 1G5
City Area Code 416
Local Phone Number 861-9797
Annual Information Form true
Audited Annual Financial Statements true
Document Annual Report true
Document Registration Statement false
Trading Symbol LGO
Title of 12(b) Security Common Shares
Security Exchange Name NASDAQ
Auditor Firm ID 85
Auditor Location Toronto, Ontario, Canada
Auditor Name KPMG LLP
Document Financial Statement Error Correction [Flag] false
Entity Primary SIC Number 1400
ICFR Auditor Attestation Flag false
Business Contact [Member]  
Entity Addresses [Line Items]  
Entity Address, Address Line One Suite 1000
Entity Address, City or Town N.W.
Entity Address, State or Province WA
Entity Address, Postal Zip Code 20005
City Area Code 202
Local Phone Number 572-3111
Contact Personnel Name C T Corporation System