GOODWILL AND INTANGIBLE ASSETS, NET - Schedule of Intangible Assets, Net (Details) - USD ($) $ in Thousands |
Jun. 30, 2026 |
Dec. 31, 2025 |
|---|---|---|
| Intangible Assets, Net [Abstract] | ||
| Gross Fair Value | $ 301,544 | $ 301,544 |
| Accumulated Amortization | (298,966) | (287,619) |
| Total | 2,578 | 13,925 |
| Merchant/Network affiliate relationships | ||
| Intangible Assets, Net [Abstract] | ||
| Gross Fair Value | 146,547 | 146,547 |
| Accumulated Amortization | (146,547) | (141,119) |
| Total | 0 | 5,428 |
| Technology | ||
| Intangible Assets, Net [Abstract] | ||
| Gross Fair Value | 74,193 | 74,193 |
| Accumulated Amortization | (72,302) | (66,549) |
| Total | 1,891 | 7,644 |
| Publisher relationships | ||
| Intangible Assets, Net [Abstract] | ||
| Gross Fair Value | 42,934 | 42,934 |
| Accumulated Amortization | (42,934) | (42,934) |
| Total | 0 | 0 |
| Tradenames | ||
| Intangible Assets, Net [Abstract] | ||
| Gross Fair Value | 24,397 | 24,397 |
| Accumulated Amortization | (24,181) | (24,131) |
| Total | 216 | 266 |
| Customer relationship | ||
| Intangible Assets, Net [Abstract] | ||
| Gross Fair Value | 13,473 | 13,473 |
| Accumulated Amortization | (13,002) | (12,886) |
| Total | $ 471 | $ 587 |