Disclosure Of Financial Instruments [Text Block]
| Concept | 2024-01-01 to 2024-12-31 | 2023-01-01 to 2023-12-31 | 
|---|---|---|
| Disclosure of financial instruments [text block] | 
                                                Finanzinstrumente und Risikomanagement
                                                
                                             | — | 
| Income, expense, gains or losses of financial instruments [abstract] | ||
| Gains (losses) on financial instruments [abstract] | ||
| Other comprehensive income, before tax, gains (losses) from investments in equity instruments | 
                                                900,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                3,700,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             |