v3.26.1
Employee benefits - Disclosure of Net Defined Benefit Liability (Asset) (Details) - EUR (€)
€ in Thousands
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Disclosure of defined benefit plans [line items]      
Net defined benefit liability (asset) at beginning of period € 2,730 € 2,441 € 2,550
Service and actualization costs 420 353 312
Restructuring impact (851)    
Payments (benefits and contributions paid by the employer) (281) (29) (27)
Actuarial (loss) gain (94) (36) (394)
Net defined benefit liability (asset) at end of period 1,923 € 2,730 2,441
Increase (decrease) due to changes in accounting policy required by IFRSs      
Disclosure of defined benefit plans [line items]      
Net defined benefit liability (asset) at beginning of period     € 0
Net defined benefit liability (asset) at end of period € (1,054)