v3.26.1
Employee benefits - Additional Information (Details) - EUR (€)
€ in Thousands
12 Months Ended
Mar. 24, 2016
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Disclosure of defined benefit plans [line items]        
Other long term benefits, years of service, threshold two 15 years 15 years    
Other long term benefits, years of service, threshold three 20 years 20 years    
Other long term benefits, years of service, threshold one 10 years 10 years    
Defined benefit obligation, at present value   € 1,923 € 2,730 € 2,441
Increase (decrease) in employee benefit obligation per 25 basis point changes in discount rate   3    
Post-employment benefit expense, defined contribution plans   1,286 1,251 1,283
Allowance for seniority awards        
Disclosure of defined benefit plans [line items]        
Defined benefit obligation, at present value   € 258 € 361 € 377
Length of service awards        
Disclosure of defined benefit plans [line items]        
Actuarial assumption of discount rates   3.10%    
Actuarial assumption of expected rates of salary increases   2.50%    
Rate of contributions   52.07%    
Rate of wages costs   21.86%    
Annual mobility rate   5.60%    
Length of service awards | Executives        
Disclosure of defined benefit plans [line items]        
Actuarial assumption of retirement age   64 years    
Length of service awards | Non-executives        
Disclosure of defined benefit plans [line items]        
Actuarial assumption of retirement age   62 years    
Length of service awards | Executives, born after 1968        
Disclosure of defined benefit plans [line items]        
Actuarial assumption of retirement age   65 years    
Length of service awards | Non-executives, born after 1968        
Disclosure of defined benefit plans [line items]        
Actuarial assumption of retirement age   64 years