Capital and Reserves - Summary Of Authorized Share Capital (Detail) - EUR (€) € / shares in Units, € in Thousands |
Jun. 30, 2026 |
Jun. 25, 2026 |
Dec. 31, 2025 |
|---|---|---|---|
| Disclosure of authorized capital [line item] | |||
| Total Shares | 39,345,000 | 39,345,000 | |
| Par value per share | € 2.4 | ||
| Authorized share capital amount | € 153,400 | € 153,400 | |
| Class A ordinary shares [member] | |||
| Disclosure of authorized capital [line item] | |||
| Total Shares | 36,525,000 | 36,525,000 | |
| Par value per share | € 2.4 | € 2.4 | |
| Authorized share capital amount | € 87,660 | € 87,660 | |
| Class B ordinary shares [member] | |||
| Disclosure of authorized capital [line item] | |||
| Total Shares | 2,011,500 | 2,011,500 | |
| Par value per share | € 24 | € 24 | |
| Authorized share capital amount | € 48,276 | € 48,276 | |
| Conversion shares [member] | |||
| Disclosure of authorized capital [line item] | |||
| Total Shares | 808,500 | 808,500 | |
| Par value per share | € 21.6 | € 21.6 | |
| Authorized share capital amount | € 17,464 | € 17,464 |