Lease liabilities - Schedule of lease liabilities by currency (Details) - EUR (€) € in Thousands |
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|---|---|---|---|
| Disclosure Of Detailed Information About Leases Payments [Line Items] | |||
| TOTAL LEASE LIABILITIES | € 28,082 | € 28,941 | € 31,969 |
| EUR | |||
| Disclosure Of Detailed Information About Leases Payments [Line Items] | |||
| TOTAL LEASE LIABILITIES | 891 | 1,078 | |
| SEK | |||
| Disclosure Of Detailed Information About Leases Payments [Line Items] | |||
| TOTAL LEASE LIABILITIES | 26,466 | 26,870 | |
| Other | |||
| Disclosure Of Detailed Information About Leases Payments [Line Items] | |||
| TOTAL LEASE LIABILITIES | € 725 | € 992 |