Financial Risk Management - Summary of Holding of Treasury Shares (Detail) - EUR (€) € in Thousands |
12 Months Ended | |
|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
|
| Disclosure Of Holding Of Treasury Shares [Line Items] | ||
| Beginning balance (Nominal value) | € 113 | € 146 |
| Acquired from third-parties (Nominal value) | 16 | |
| Transferred under stock incentive programs (Nominal Value) | (49) | (33) |
| Ending balance (Nominal Value) | € 80 | € 113 |
| Beginning balance (Holding) | 845,887 | 1,093,054 |
| Acquired from third-parties (Holding) | 119,148 | |
| Transferred under stock incentive programs (Holding) | (367,939) | (247,167) |
| Ending balance (Holding) | 597,096 | 845,887 |
| Beginning balance (Holding in % of total outstanding shares) | 1.40% | 0.00% |
| Acquired from third-parties (Holding in 1% total outstanding shares) | 0.00% | |
| Transferred under stock incentive programs (Holding in 1% total outstanding shares) | 0.00% | 0.00% |
| Ending balance (Holding in % of total outstanding shares) | 1.00% | 1.40% |