v3.25.4
Cover page - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Feb. 19, 2026
Jun. 30, 2025
Document Information [Line Items]      
Document Type 10-K    
Document Annual Report true    
Document Period End Date Dec. 31, 2025    
Current Fiscal Year End Date --12-31    
Document Transition Report false    
Entity File Number 001-36153    
Entity Registrant Name Criteo S.A.    
Entity Incorporation, State or Country Code I0    
Entity Address, Address Line One 32 Rue Blanche    
Entity Address, City or Town Paris    
Entity Address, Country FR    
Entity Address, Postal Zip Code 75009    
Country Region 33    
City Area Code 75    
Local Phone Number 85 09 39    
Well-known Seasoned Issuer Yes    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Filer Category Large Accelerated Filer    
Entity Small Business false    
Entity Emerging Growth Company false    
ICFR Auditor Attestation Flag true    
Document Financial Statement Error Correction [Flag] false    
Entity Shell Company false    
Entity Public Float     $ 1,254
Entity Common Stock, Shares Outstanding (in shares)   49,859,086  
Entity Central Index Key 0001576427    
Document Fiscal Year Focus 2025    
Document Fiscal Period Focus FY    
Amendment Flag false    
Documents Incorporated by Reference Part III incorporates certain information by reference from the registrant’s proxy statement for the 2026 Annual
Meeting of Shareholders. Such proxy statement will be filed no later than 120 days after the close of the registrant’s fiscal
year ended December 31, 2025.
   
American Depositary Shares      
Document Information [Line Items]      
Title of 12(b) Security American Depositary Shares, each representing one ordinary share, nominal value €0.025 per share    
Trading Symbol CRTO    
Security Exchange Name NASDAQ    
Share capital      
Document Information [Line Items]      
Title of 12(b) Security Ordinary shares, nominal value €0.025 per share    
Security Exchange Name NASDAQ    
No Trading Symbol true