v3.25.4
Principles and Accounting Methods - Schedule of Consolidations (Details)
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Criteo France SAS    
Schedule of Investments [Line Items]    
Voting rights 100.00% 100.00%
Ownership Interest 100.00% 100.00%
Criteo Technology SAS    
Schedule of Investments [Line Items]    
Voting rights 100.00% 100.00%
Ownership Interest 100.00% 100.00%
Criteo Holdings, Inc.    
Schedule of Investments [Line Items]    
Voting rights 100.00% 0.00%
Ownership Interest 100.00% 0.00%
Criteo Ltd    
Schedule of Investments [Line Items]    
Voting rights 100.00% 100.00%
Ownership Interest 100.00% 100.00%
Criteo Corp.    
Schedule of Investments [Line Items]    
Voting rights 100.00% 100.00%
Ownership Interest 100.00% 100.00%
Doobe In Site Ltd.    
Schedule of Investments [Line Items]    
Voting rights 100.00% 100.00%
Ownership Interest 100.00% 100.00%
Criteo GmbH    
Schedule of Investments [Line Items]    
Voting rights 100.00% 100.00%
Ownership Interest 100.00% 100.00%
Criteo Nordics AB    
Schedule of Investments [Line Items]    
Voting rights 100.00% 100.00%
Ownership Interest 100.00% 100.00%
Criteo Korea Ltd.    
Schedule of Investments [Line Items]    
Voting rights 100.00% 100.00%
Ownership Interest 100.00% 100.00%
Criteo KK    
Schedule of Investments [Line Items]    
Voting rights 66.00% 66.00%
Ownership Interest 66.00% 66.00%
Criteo do Brasil Desenvolvimento De Serviços De Internet Ltda.    
Schedule of Investments [Line Items]    
Voting rights 100.00% 100.00%
Ownership Interest 100.00% 100.00%
Criteo BV    
Schedule of Investments [Line Items]    
Voting rights 100.00% 100.00%
Ownership Interest 100.00% 100.00%
Criteo Australia Pty Ltd    
Schedule of Investments [Line Items]    
Voting rights 100.00% 100.00%
Ownership Interest 100.00% 100.00%
Criteo Srl    
Schedule of Investments [Line Items]    
Voting rights 100.00% 100.00%
Ownership Interest 100.00% 100.00%
Criteo Advertising (Beijing) Co. Ltd    
Schedule of Investments [Line Items]    
Voting rights 100.00% 100.00%
Ownership Interest 100.00% 100.00%
Brandcrush Pty Ltd    
Schedule of Investments [Line Items]    
Voting rights 100.00% 100.00%
Ownership Interest 100.00% 100.00%
Criteo Singapore Pte. Ltd.    
Schedule of Investments [Line Items]    
Voting rights 100.00% 100.00%
Ownership Interest 100.00% 100.00%
Criteo LLC    
Schedule of Investments [Line Items]    
Voting rights 100.00% 100.00%
Ownership Interest 100.00% 100.00%
Criteo Europa MM S.L.    
Schedule of Investments [Line Items]    
Voting rights 100.00% 100.00%
Ownership Interest 100.00% 100.00%
Criteo España S.L.    
Schedule of Investments [Line Items]    
Voting rights 100.00% 100.00%
Ownership Interest 100.00% 100.00%
Criteo Canada Corp.    
Schedule of Investments [Line Items]    
Voting rights 100.00% 100.00%
Ownership Interest 100.00% 100.00%
Criteo Reklamcılık Hizmetleri ve Ticaret Anonim Şirketi    
Schedule of Investments [Line Items]    
Voting rights 100.00% 100.00%
Ownership Interest 100.00% 100.00%
Criteo MEA FZ-LLC    
Schedule of Investments [Line Items]    
Voting rights 100.00% 100.00%
Ownership Interest 100.00% 100.00%
Criteo India Private Limited    
Schedule of Investments [Line Items]    
Voting rights 100.00% 100.00%
Ownership Interest 100.00% 100.00%
Bidswitch GmbH    
Schedule of Investments [Line Items]    
Voting rights 100.00% 100.00%
Ownership Interest 100.00% 100.00%
Bidswitch Inc.    
Schedule of Investments [Line Items]    
Voting rights 100.00% 100.00%
Ownership Interest 100.00% 100.00%
Iponweb GmbH    
Schedule of Investments [Line Items]    
Voting rights 100.00% 100.00%
Ownership Interest 100.00% 100.00%
Iponweb Limited    
Schedule of Investments [Line Items]    
Voting rights 100.00% 100.00%
Ownership Interest 100.00% 100.00%
Iponweb Labs Limited    
Schedule of Investments [Line Items]    
Voting rights 100.00% 100.00%
Ownership Interest 100.00% 100.00%
The MediaGrid Inc.    
Schedule of Investments [Line Items]    
Voting rights 100.00% 100.00%
Ownership Interest 100.00% 100.00%
Iponweb Labs LLC    
Schedule of Investments [Line Items]    
Voting rights 100.00% 100.00%
Ownership Interest 100.00% 100.00%
Criteo Technology SRL    
Schedule of Investments [Line Items]    
Voting rights 100.00% 100.00%
Ownership Interest 100.00% 100.00%
Criteo S.A    
Schedule of Investments [Line Items]    
Voting rights 100.00% 100.00%
Ownership Interest 100.00% 100.00%