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Segments - Schedule of Segment Information (Parenthetical) (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2026 | Mar. 31, 2026 | Jun. 30, 2025 | Mar. 31, 2025 | Jun. 30, 2026 | Jun. 30, 2025
Segment Reporting [Line Items] |  |  |  |  |  |
Indirect expenses | $ 47,941 |  | $ 50,764 |  | $ 95,146 | $ 102,692
Unallocated indirect expenses |  | $ 1,800 |  | $ 5,500 |  |
Brand to Demand [Member] |  |  |  |  |  |
Segment Reporting [Line Items] |  |  |  |  |  |
Depreciation and amortization expense | 300 |  | 300 |  | 1,100 | 600
Indirect expenses | 28,205 | $ 1,800 | 30,416 | $ 5,500 | 56,148 | 62,329
Intelligence & Advisory [Member] |  |  |  |  |  |
Segment Reporting [Line Items] |  |  |  |  |  |
Depreciation and amortization expense | 100 |  | 200 |  | 100 | 400
Indirect expenses | $ 19,736 |  | $ 20,348 |  | $ 38,998 | $ 40,363

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