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Impairments - Schedule of Impairments (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024 | Dec. 31, 2024
Goodwill [Line Items] |  |  |  |  |
Total impairments in cost of revenue |  | $ 9,750 | $ 2,919 | $ 9,930 |
Capitalized hosting arrangements |  | 974 | 291 | 974 |
Capitalized internal-use software |  |  | 769 |  |
Capitalized website development |  | 5,833 | 1,882 | 5,833 |
Intangible assets | $ 0 | 0 | 6,624 | 7,538 | $ 7,538
Goodwill |  | 0 | 19,568 | 115,206 |
Right-of-use assets |  | 0 | 499 | 4,731 |
Furniture and fixtures |  | 219 |  | 219 |
Total impairments in operating expense |  | 7,026 | 29,633 | 134,501 |
Total |  | 16,776 | 32,552 | 144,431 |
Capitalized Website Development |  |  |  |  |
Goodwill [Line Items] |  |  |  |  |
Total impairments in cost of revenue |  | $ 9,750 | $ 2,919 | $ 9,930 |

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