ORGANIZATION AND DESCRIPTION OF BUSINESS	12 Months Ended
ORGANIZATION AND DESCRIPTION OF BUSINESS	Dec. 31, 2022
Organization, Consolidation and Presentation of Financial Statements [Abstract]
ORGANIZATION AND DESCRIPTION OF BUSINESS	ORGANIZATION AND DESCRIPTION OF BUSINESS System1, Inc. and subsidiaries (“System1” or the “Company”) operates an omnichannel customer acquisition platform, delivering high-intent customers to advertisers and sells antivirus software packages to end user customers. The Company provides its omnichannel customer acquisition platform services through its proprietary responsive acquisition marketing platform (“RAMP”). Operating seamlessly across major advertising networks and advertising category verticals to acquire users, RAMP allows the Company to monetize such users through its relationships with third party advertisers and advertising networks (“Advertising Partners”). RAMP also allows third party advertising platforms and publishers (“Network Partners”), to send user traffic to, and monetize user traffic on, the Company’s owned and operated websites. RAMP operates across the Company’s network of owned and operated websites and related products, allowing it to monetize user traffic that it sources from various acquisition marketing channels, including Google, Facebook, Taboola and Zemanta. The Company, through its wholly owned subsidiary Protected.net Group Limited, incorporated in England and Wales (“Protected.net”), also provides antivirus software solutions, offering its customers a single packaged solution that provides protection and reporting to the end user. The Company delivers its antivirus software solutions directly to end-user customers across the world. The antivirus software solutions product offering comprises a core security package with varying levels of extra protection based on a customer's specific needs. The Company’s primary operations are in the United States; and the Company also has operations in Canada, the United Kingdom, and the Netherlands. Operations outside the United States are subject to risks inherent in operating under different legal systems and various political and economic environments. Among these risks are changes in existing tax laws, possible limitations on foreign investment and income repatriation, government foreign exchange controls, and exposure to currency exchange fluctuations. The Company does not engage in hedging activities to mitigate its exposure to fluctuations in foreign currency exchange rates. For the purposes of the consolidated financial statements, periods on or before January 26, 2022 reflect the financial position, results of operations and cash flows of S1 Holdco ("S1 Holdco") and its consolidated subsidiaries prior to the Merger (as defined in Note 3—MERGER), referred to herein as the “Predecessor,” and periods beginning on or after January 27, 2022 reflect the financial position, results of operations and cash flows of the Company and its consolidated subsidiaries as a result of the Merger, referred to herein as the “Successor”. Going Concern As of June 1, 2023, the Company had not delivered audited financial statements for the fiscal year ended December 31, 2022 to Bank of America as required by the covenants of the Term Loan (refer to Note 12 – DEBT, NET). The failure to timely deliver the audited financial statements is an event of default under the Term Loan and provides Bank of America the ability to immediately call the outstanding principal balances of the Term Loan and Revolving Facility of $430,000, as of the date of this filing, at the request of, or with the consent of, the required majority of lenders until such time that the audited financial statements are delivered to Bank of America. The Company does not have sufficient liquidity to settle the outstanding principal balances should they be called, nor has the Company identified sufficient alternative sources of capital. As a result, this matter raises substantial doubt about the Company’s ability to continue as a going concern. Upon delivery of the audited financial statements by the Company, the event of default will be remediated and, once remediated, Bank of America will no longer have the ability to call the outstanding principal balances on the Term Loan and Revolving Facility. Separate from the default under the Term Loan and Revolving Facility, in the third and fourth quarters of 2022, the Company experienced declining cash flows and financial performance as a result of deteriorating macroeconomic conditions, resulting in reductions in both advertiser and overall consumer demand for our marketing services. As of December 31, 2022, the Company had cash on hand of $24,606. The declining cash flows and financial performance also raised substantial doubt regarding the Company's ability to continue as a going concern for a period of one year following the date that the consolidated financial statements are issued. In response to the declining cash flows, the Company implemented a plan to raise additional financing. On April 10, 2023, the Company entered into an incremental revolver note (“2023 Revolving Note”) with related parties for $20,000 (refer to Note 12—DEBT, NET for additional information regarding the 2023 Revolving Note). As of the date of this filing, the available balance under the 2023 Revolving Note was $15,000. The consolidated financial statements do not include any adjustments that might result from the outcome of these uncertainties. Accordingly, the consolidated financial statements have been prepared on a basis that assumes the Company will continue as a going concern and which contemplates the realization of assets and satisfaction of liabilities and commitments in the ordinary course of business.