Management and assessment of financial risks (Details) - EUR (€) € in Thousands |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2025 |
Jun. 30, 2024 |
Jun. 30, 2025 |
Jun. 30, 2024 |
|
| Disclosure of credit risk exposure [line items] | ||||
| Operating expense | € 47,589 | € 40,954 | € 95,783 | € 86,811 |
| United States of America, Dollars | ||||
| Disclosure of credit risk exposure [line items] | ||||
| Operating expense | € 7,408 | |||
| United States of America, Dollars | Currency risk | ||||
| Disclosure of credit risk exposure [line items] | ||||
| Reasonably possible change in risk variable, percent | 10.00% | |||
| Reasonably possible change in risk variable, impact on foreign exchange | € 823 | |||