System1 (SST) 10-K/A 27 Sep 24 2023 FY Annual report (amended) Financial data

Cover Page

Cover Page - USD ($)	12 Months Ended
	Dec. 31, 2023	Mar. 08, 2024	Jun. 30, 2023
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Document Type	10-K/A
Document Annual Report	true
Document Period End Date	Dec. 31, 2023
Current Fiscal Year End Date	--12-31
Document Transition Report	false
Entity File Number	001-39331
Entity Registrant Name	System1, Inc.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	92-3978051
Entity Address, Address Line One	4235 Redwood Avenue
Entity Address, City or Town	Marina Del Rey
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	90066
City Area Code	310
Local Phone Number	924-6037
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	true
Entity Ex Transition Period	false
ICFR Auditor Attestation Flag	false
Document Financial Statement Error Correction [Flag]	true
Document Financial Statement Restatement Recovery Analysis [Flag]	true
Entity Shell Company	false
Entity Public Float			$ 118,737,000
Documents Incorporated by Reference	The information required by Part III of this report, to the extent not set forth herein, is incorporated by reference from the registrant’s proxy statement relating to its annual meeting of stockholders as filed on April 29 th 2024.
Entity Central Index Key	0001805833
Document Fiscal Year Focus	2023
Document Fiscal Period Focus	FY
Amendment Flag	false
Class A Common Stock
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Title of 12(b) Security	Class A common stock, par value $0.0001 per share
Trading Symbol	SST
Security Exchange Name	NYSE
Entity Common Stock, Shares Outstanding		68,420,666
Redeemable warrants, each whole warrant exercisable for one Class A common stock at an exercise price of $11.50 per share
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Title of 12(b) Security	Redeemable warrants, each whole warrant exercisable for one Class A common stock at an exercise price of $11.50 per share
Trading Symbol	SST.WS
Security Exchange Name	NYSE
Common Class C
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Entity Common Stock, Shares Outstanding		21,203,676

Audit Information

Audit Information	12 Months Ended
	Dec. 31, 2023
Audit Information [Abstract]
Auditor Name	PricewaterhouseCoopers LLP
Auditor Location	Los Angeles, California
Auditor Firm ID	238