Annual and transition report of foreign private issuers [Sections 13 or 15(d)]

Equity - Additional Information (Details)

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Equity - Additional Information (Details) - EUR (€)
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Mar. 22, 2024
Disclosure Of Classes Of Share Capital [Line Items]        
Paid in share capital € 22,232,000 € 21,698,000    
Number of paid in capital shares 302,842,536 295,540,036    
Treasury shares 29,943,911 30,073,093    
Increase share capital € 22,232,000 € 21,698,000    
Conversion of shares into ordinary shares 129,182      
Cost of treasury shares € (27,148,000) (27,233,000)    
Reserve for actuarial gains/losses (53,000) (287,000)    
Cash flow hedge reserve (1,029,000) 2,241,000    
Cost of hedging reserve (90,000) (83,000)    
Currency translation reserve (12,578,000) (10,976,000)    
Legal reserve 4,340,000 4,340,000    
Other reserves 88,328,000 65,237,000    
Retained earnings 652,995,000 542,652,000    
Net profit attributable to equity holders of the parent 117,778,000 145,631,000 € 142,849,000  
Non-controlling interests 46,000 € 115,000    
Prior year net profit allocation to other reserves 20,887,000      
Accrual of fair value of personnel cost related to share-based incentive plans to other reserves 2,309,000      
Other effects to other reserves € (105,000)      
Ordinary Shares        
Disclosure Of Classes Of Share Capital [Line Items]        
Number of paid in capital shares 49,604,649 34,870,467    
New Ordinary Shares        
Disclosure Of Classes Of Share Capital [Line Items]        
Maximum issuance of share capital       7,302,500
New Ordinary Shares | Bottom of Range        
Disclosure Of Classes Of Share Capital [Line Items]        
Increase share capital       € 21,698,480
New Ordinary Shares | Top of Range        
Disclosure Of Classes Of Share Capital [Line Items]        
Increase share capital       € 22,231,562
Class A Multiple Voting Shares        
Disclosure Of Classes Of Share Capital [Line Items]        
Number of paid in capital shares 253,237,887 260,669,569    
Reserve [Member]        
Disclosure Of Classes Of Share Capital [Line Items]        
Share premium € 559,565,000 € 389,312,000