Segment Information - Schedule of Financial Information that is Presented to the CODM (Details) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2026	Mar. 31, 2025
Segment Reporting Information [Line Items]
Total revenues	[1],[2]	$ 85,322	$ 85,709
Cost of goods sold	[1],[2],[3],[4]	52,988	51,747
Stock-based compensation		825	738
Foreign currency transactions		(1,240)	1,743
Interest expense, net		1,750	1,758
Taxes		856	(1,574)
Net loss		(6,248)	(3,993)
Reportable Segment
Segment Reporting Information [Line Items]
Total revenues		85,322	85,709
Cost of goods sold		32,908	32,617
Compensation		34,451	33,569
Professional fees		5,594	4,890
Facilities & office expense		1,801	2,309
Software licenses, maintenance and systems		3,467	3,254
Travel & entertainment		629	465
Other operating expenses		1,423	1,235
Total operating expenses		47,365	45,722
Depreciation & amortization		7,499	7,346
Stock-based compensation		825	738
Transformation costs		376	1,007
Strategic transaction costs		514	0
Foreign currency transactions		(1,240)	1,743
Interest expense, net		1,750	1,758
Taxes		856	(1,574)
Other		717	345
Net loss		(6,248)	(3,993)
Total Content & Ad Measurement
Segment Reporting Information [Line Items]
Total revenues		73,113	73,166
Total Content & Ad Measurement | Reportable Segment
Segment Reporting Information [Line Items]
Total revenues		73,113	73,166
Syndicated Audience
Segment Reporting Information [Line Items]
Total revenues		60,511	63,504
Syndicated Audience | Reportable Segment
Segment Reporting Information [Line Items]
Total revenues		60,511	63,504
Cross-Platform
Segment Reporting Information [Line Items]
Total revenues		12,602	9,662
Cross-Platform | Reportable Segment
Segment Reporting Information [Line Items]
Total revenues		12,602	9,662
Research & Insight Solutions
Segment Reporting Information [Line Items]
Total revenues		12,209	12,543
Research & Insight Solutions | Reportable Segment
Segment Reporting Information [Line Items]
Total revenues		$ 12,209	$ 12,543

[1] Three Months Ended March 31,20262025Revenues$501 $2,604 Cost of revenues2,778 5,766 Convertible redeemable preferred stock dividends— (4,439)

[2] (1) Transactions with related parties are included in the line items above as follows. Refer to Footnote 8, Related Party Transactions.

[3] (3) Stock-based compensation expense is included in the line items above as follows: Three Months Ended March 31,20262025Cost of revenues$214 $162 Selling and marketing171 124 Research and development127 97 General and administrative313 355 Total stock-based compensation expense$825 $738 

[4] (2) Excludes amortization of intangible assets, which is presented as a separate line item.