Analysis Of Income And Expense [Abstract]
| Concept | 2023-10-01 to 2024-09-30 | 2022-10-01 to 2023-09-30 | 
|---|---|---|
| Analysis of income and expense [abstract] | ||
| Revenue [abstract] | ||
| Revenue | 
                                                145,415
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                177,774
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
| Expenses by nature [abstract] | ||
| Raw materials and consumables used | 
                                                50,843
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                66,187
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
| Classes of employee benefits expense [abstract] | ||
| Employee benefits expense | 
                                                72,762
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                82,215
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
| Other expenses, by nature | 
                                                19,772
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                22,210
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
| Miscellaneous other comprehensive income [abstract] | ||
| Other comprehensive income, net of tax, exchange differences on translation of foreign operations and hedges of net investments in foreign operations [abstract] | ||
| Other comprehensive income, net of tax, exchange differences on translation of foreign operations | 
                                                200,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                290,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
| Comprehensive income, continuing and discontinued operations [abstract] | ||
| Comprehensive income | 
                                                23,409
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                1,313
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             |