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Revenue Recognition - Schedule of Disaggregation of Revenue (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024
Disaggregation of Revenue |  |  |  |  |
Total | [1],[2] | $ 88,906 | $ 88,479 | $ 264,004 | $ 261,111
Products and services transferred over time |  |  |  |  |
Disaggregation of Revenue |  |  |  |  |
Total |  | 75,278 | 77,741 | 223,840 | 227,416
Products and services transferred at a point in time |  |  |  |  |
Disaggregation of Revenue |  |  |  |  |
Total |  | 13,628 | 10,738 | 40,164 | 33,695
United States |  |  |  |  |
Disaggregation of Revenue |  |  |  |  |
Total |  | 78,791 | 78,846 | 234,345 | 233,058
Europe |  |  |  |  |
Disaggregation of Revenue |  |  |  |  |
Total |  | 5,988 | 5,456 | 17,384 | 15,630
Latin America |  |  |  |  |
Disaggregation of Revenue |  |  |  |  |
Total |  | 1,813 | 1,758 | 5,352 | 5,203
Canada |  |  |  |  |
Disaggregation of Revenue |  |  |  |  |
Total |  | 1,253 | 1,368 | 3,823 | 4,221
Other |  |  |  |  |
Disaggregation of Revenue |  |  |  |  |
Total |  | 1,061 | 1,051 | 3,100 | 2,999
Total Content & Ad Measurement |  |  |  |  |
Disaggregation of Revenue |  |  |  |  |
Total |  | 75,519 | 75,274 | 225,438 | 220,083
Syndicated Audience |  |  |  |  |
Disaggregation of Revenue |  |  |  |  |
Total |  | 63,220 | 65,042 | 190,677 | 193,831
Cross-Platform |  |  |  |  |
Disaggregation of Revenue |  |  |  |  |
Total |  | 12,299 | 10,232 | 34,761 | 26,252
Research & Insight Solutions |  |  |  |  |
Disaggregation of Revenue |  |  |  |  |
Total |  | $ 13,387 | $ 13,205 | $ 38,566 | $ 41,028
[1] |
| Three Months Ended September 30, |  | Nine Months Ended September 30,
| 2025 |  |  | 2024 |  | 2025 |  | 2024
Revenues | $ | 2,523 |  |  |  | $ | 2,597 |  |  | $ | 7,412 |  |  | $ | 7,512 |
Cost of revenues | 5,679 |  |  |  | 7,364 |  |  | 16,880 |  |  | 22,964 |
Convertible redeemable preferred stock dividends | (4,971) |  |  |  | (4,578) |  |  | (13,904) |  |  | (13,062) |
[2] | (1) Transactions with related parties are included in the line items above as follows. Refer to Footnote 9, Related Party Transactions.

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