| Summary of detailed information about other reserve |
| | | | | | | | | | | | | | | Other comprehensive income reserve | | | | | | | | | Cumulative | | Re-measurement | | | | | | | Share | | translation | | of defined | | Other | | | (Euro thousands) | | premium | | adjustment | | benefit plans | | reserves | | Total | Balance at January 1, 2023 | | 743,501 | | (716) | | 675 | | 19,501 | | 762,961 | Repurchase of Ordinary Shares | | (25,023) | | — | | — | | — | | (25,023) | Issuance of Ordinary Shares | | 65,405 | | — | | — | | — | | 65,405 | Employee share-based compensation | | — | | — | | — | | 2,749 | | 2,749 | Changes in ownership interest in a subsidiary without change of control | | — | | — | | — | | (1,987) | | (1,987) | Currency translation differences | | — | | 3,333 | | — | | — | | 3,333 | Actuarial reserve relating to employee benefit | | — | | — | | (761) | | — | | (761) | | | | | | | | | | | | Balance at December 31, 2023 | | 783,883 | | 2,617 | | (86) | | 20,263 | | 806,677 | Repurchase of ordinary shares | | (18,829) | | — | | — | | — | | (18,829) | Employee share-based compensation | | — | | — | | — | | 551 | | 551 | Currency translation differences | | — | | (8,007) | | — | | — | | (8,007) | Actuarial reserve relating to employee benefit | | — | | — | | 45 | | — | | 45 | Others | | — | | — | | — | | (1,081) | | (1,081) | | | | | | | | | | | | Balance at December 31, 2024 | | 765,054 | | (5,390) | | (41) | | 19,733 | | 779,356 | Repurchase of ordinary shares | | (47,245) | | — | | — | | — | | (47,245) | Employee share-based compensation | | — | | — | | — | | 184 | | 184 | Changes in ownership interest in a subsidiary without change of control(1) | | — | | — | | — | | (18,580) | | (18,580) | Currency translation differences | | — | | 13,497 | | — | | — | | 13,497 | Actuarial reserve relating to employee benefit | | — | | — | | 335 | | — | | 335 | Balance at December 31, 2025 | | 717,809 | | 8,107 | | 294 | | 1,337 | | 727,547 |
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