NET REVENUE - Contract assets and liabilities (Details) - USD ($) $ in Thousands |
9 Months Ended | 12 Months Ended |
|---|---|---|
Sep. 30, 2025 |
Dec. 31, 2024 |
|
| Contract assets: | ||
| Unbilled receivables | $ 4,107 | $ 5,969 |
| Contract liabilities: | ||
| Customer advances and unearned income | 2,798 | 2,200 |
| Reserve for audience deficiency | 15,228 | 22,383 |
| Unearned event income | $ 6,937 | $ 1,152 |