Summary of Significant Accounting Policies	6 Months Ended
Jun. 30, 2025
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	Summary of Significant Accounting Policies Basis of Presentation The accompanying unaudited condensed consolidated financial statements (the "Unaudited Condensed Consolidated Financial Statements") have been prepared by Criteo in accordance with generally accepted accounting principles in the United States of America ("GAAP") and pursuant to the applicable rules and regulations of the Securities and Exchange Commission ("SEC"), including regarding interim financial reporting. Certain information and disclosures normally included in financial statements prepared in accordance with GAAP have been condensed or omitted pursuant to such rules and regulations. As such, these unaudited condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and the notes thereto included in the Company's Annual Report on Form 10-K for the year ended December 31, 2024, filed with the SEC on February 28, 2025. The unaudited condensed consolidated financial statements included herein reflect all normal recurring adjustments that are, in the opinion of management, necessary to state fairly the results for the interim periods presented. The results of operations for the interim periods presented are not necessarily indicative of the operating results to be expected for any subsequent interim period or for the fiscal year ending December 31, 2025. Use of Estimates The preparation of our Consolidated Financial Statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the consolidated financial statements and the reported amount of revenue and expenses during the period. We base our estimates and assumptions on historical experience and other factors that we believe to be reasonable under the circumstances. We evaluate our estimates and assumptions on an ongoing basis. Actual results may differ from these estimates. On an on-going basis, management evaluates its estimates, primarily those related to: (1) revenue recognition (2) income taxes, (3) assumptions used in the valuation of long-lived assets including intangible assets, and goodwill, and (4) assumptions surrounding the recognition and valuation of contingent liabilities and losses. During the second quarter of 2025, Alphabet Inc. announced its decision not to proceed with the deprecation of third-party cookies in its Chrome browser. As a result, the Company recorded accelerated amortization of $7.9 million and a nonrecurring impairment charge of $0.9 million related to internally developed intangible assets developed in response to the deprecation of third-party cookies. Significant Accounting Policies In January 2025, we completed an assessment of the useful lives of our servers and network equipment, resulting in a change in the estimated useful life of certain servers and network equipment from five to six years. This change in accounting estimate is effective beginning fiscal year 2025. There have been no other significant changes to our accounting policies described in our Annual Report on Form 10-K for the fiscal year ended December 31, 2024. Reclassifications Certain prior year amounts, which are not material, have been reclassified to conform to current year presentation in the notes to condensed consolidated financial statements. Accounting Pronouncements Not Yet Adopted In December 2023, the FASB issued ASU 2023-09, Improvements to Income Tax Disclosures, which improves the transparency of income tax disclosures. The standard requires disaggregated information about a reporting entity's effective tax rate reconciliation as well as information on income taxes paid. The new standard is effective for annual periods beginning after December 15, 2024. We do not expect the adoption of this standard to have an impact on our consolidated financial statements. In November 2024, the FASB issued ASU 2024-03, Income Statement—Reporting Comprehensive Income—Expense Disaggregation Disclosures, which requires disaggregated disclosure of income statement expenses. This standard is effective for annual periods beginning after December 15, 2026, with early adoption permitted. We do not expect the adoption of this standard to have a material impact on our consolidated financial statements.

The accompanying unaudited condensed consolidated financial statements (the "Unaudited Condensed Consolidated Financial Statements") have been prepared by Criteo in accordance with generally accepted accounting principles in the United States of America ("GAAP") and pursuant to the applicable rules and regulations of the Securities and Exchange Commission ("SEC"), including regarding interim financial reporting. Certain information and disclosures normally included in financial statements prepared in accordance with GAAP have been condensed or omitted pursuant to such rules and regulations. As such, these unaudited condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and the notes thereto included in the Company's Annual Report on Form 10-K for the year ended December 31, 2024, filed with the SEC on February 28, 2025.

The unaudited condensed consolidated financial statements included herein reflect all normal recurring adjustments that are, in the opinion of management, necessary to state fairly the results for the interim periods presented. The results of operations for the interim periods presented are not necessarily indicative of the operating results to be expected for any subsequent interim period or for the fiscal year ending December 31, 2025.

The preparation of our Consolidated Financial Statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the consolidated financial statements and the reported amount of revenue and expenses during the period. We base our estimates and assumptions on historical experience and other factors that we believe to be reasonable under the circumstances. We evaluate our estimates and assumptions on an ongoing basis. Actual results may differ from these estimates.

On an on-going basis, management evaluates its estimates, primarily those related to: (1) revenue recognition (2) income taxes, (3) assumptions used in the valuation of long-lived assets including intangible assets, and goodwill, and (4) assumptions surrounding the recognition and valuation of contingent liabilities and losses.

During the second quarter of 2025, Alphabet Inc. announced its decision not to proceed with the deprecation of third-party cookies in its Chrome browser. As a result, the Company recorded accelerated amortization of $7.9 million and a nonrecurring impairment charge of $0.9 million related to internally developed intangible assets developed in response to the deprecation of third-party cookies.

In January 2025, we completed an assessment of the useful lives of our servers and network equipment, resulting in a change in the estimated useful life of certain servers and network equipment from five to six years. This change in accounting estimate is effective beginning fiscal year 2025.

In December 2023, the FASB issued ASU 2023-09, Improvements to Income Tax Disclosures, which improves the transparency of income tax disclosures. The standard requires disaggregated information about a reporting entity's effective tax rate reconciliation as well as information on income taxes paid. The new standard is effective for annual periods beginning after December 15, 2024. We do not expect the adoption of this standard to have an impact on our consolidated financial statements.