Fair value measurement - Changes in fair value of contingent consideration (Details) - USD ($) $ in Thousands |
6 Months Ended | |
|---|---|---|
Jun. 30, 2025 |
Jun. 30, 2024 |
|
| Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] | ||
| Beginning Balance | $ 10,860 | |
| Unrealized change in fair value (presented within research and development expenses) | 3,470 | $ (1,621) |
| Ending Balance | 15,931 | |
| uniQure France [S.A.S] | ||
| Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] | ||
| Beginning Balance | 10,860 | |
| Unrealized change in fair value (presented within research and development expenses) | 3,470 | |
| Currency translation effects | 1,601 | |
| Ending Balance | $ 15,931 | |