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v3.25.3

Restructuring, impairment, and other related costs - Narrative (Details) $ in Thousands | 3 Months Ended | 9 Months Ended |  |
--- | --- | --- | --- | ---
Sep. 30, 2025 USD ($) | Jun. 30, 2025 USD ($) | Sep. 30, 2025 USD ($) | Sep. 30, 2024 USD ($) | Dec. 31, 2025 | Dec. 31, 2024 USD ($)
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |
Severance and benefit expense (reversal) | $ (450) |  | $ 6,228 |  |  |
Accrued expenses and other current liabilities | 53,925 |  | 53,925 |  |  | $ 62,440
Impairment of long-lived assets |  | $ 6,400 |  |  |  |
Impairment of long-lived assets and prepaid expenses, and other related costs | 827 |  | 7,240 | $ 0 |  |
United Kingdom |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |
Impairment of long-lived assets |  | 5,400 |  |  |  |
Prepaid expense |  | 1,000 |  |  |  |
United Kingdom | Right Of Use Asset |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |
Impairment of long-lived assets |  | 400 |  |  |  |
United Kingdom | Leasehold improvements |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |
Impairment of long-lived assets |  | 2,700 |  |  |  |
Impairment of long-lived assets and prepaid expenses, and other related costs | 800 |  | 800 |  |  |
United Kingdom | Equipment |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |
Impairment of long-lived assets |  | 2,100 |  |  |  |
United Kingdom | Furniture and Fixtures |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |
Impairment of long-lived assets |  | $ 200 |  |  |  |
Employee Severance |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |
Severance and benefit expense (reversal) |  |  | 6,200 |  |  |
Payments for restructuring |  |  | 3,400 |  |  |
Accrued expenses and other current liabilities | $ 2,800 |  | $ 2,800 |  |  |
Employee Severance | Forecast | 2025 Restructuring |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |
Expected number of positions eliminated (as a percent) |  |  |  |  | 0.30 |

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