Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Jun. 30, 2026	Dec. 31, 2025
Current assets:
Cash and cash equivalents	$ 40,484	$ 86,887
Restricted cash, current	500	1,243
Accounts receivable, net	40,980	57,289
Prepaid expenses and other current assets	7,557	4,061
Total current assets	89,521	149,480
Restricted cash, non-current	379	379
Property and equipment, net	1,358	1,562
Intangible assets, net	96,007	148,089
Goodwill	82,407	82,407
Operating lease right-of-use assets	8,315	9,120
Other non-current assets	287	263
Total assets	291,371	404,972
Current liabilities:
Accounts payable	15,139	22,016
Accrued expenses and other current liabilities	23,367	46,277
Operating lease liabilities, current	1,538	1,427
Debt, net	76,915	76,718
Total current liabilities	116,959	146,438
Operating lease liabilities, non-current	7,312	8,183
Long-term debt, net	214,880	228,399
Deferred tax liability	3,573	4,013
Other non-current liabilities	1,651	520
Total liabilities	344,375	387,553
Commitments and contingencies (Note 7)
Stockholders' equity:
Additional paid-in capital	881,755	878,859
Accumulated deficit	(907,345)	(847,679)
Accumulated other comprehensive loss	(325)	(157)
Treasury stock, at cost - 190 and 137 shares as of June 30, 2026 and December 31, 2025, respectively	(759)	(557)
Total stockholders' equity attributable to System1, Inc.	(26,673)	30,467
Non-controlling interest	(26,331)	(13,048)
Total stockholders' equity	(53,004)	17,419
Total liabilities and stockholders' equity	291,371	404,972
Internal-use software development costs
Current assets:
Internal-use software development costs, net	13,097	13,672
Class A Common Stock
Stockholders' equity:
Common stock value	1	1
Class C Common Stock
Stockholders' equity:
Common stock value	$ 0	$ 0

Accrued Expenses And Other Liabilities, Current

No definition available.

Name:	sst_AccruedExpensesAndOtherLiabilitiesCurrent
Namespace Prefix:	sst_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).