Statement Of Cash Flows [Abstract]
| Concept | 2023-09-01 to 2024-08-31 | 2022-09-01 to 2023-08-31 | 
|---|---|---|
| Statement of cash flows [abstract] | ||
| Cash flows from (used in) operating activities [abstract] | ||
| Adjustments for finance income (cost) | 
                                                17 175
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                14 150
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
| Cash flows from (used in) operations before changes in working capital | 
                                                11 414
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                10 868
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
| Adjustments for gains (losses) on fair value adjustment, investment property | 
                                                18 532
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                22 727
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
| Adjustments for gains (losses) on change in fair value of derivatives | 
                                                852,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                0
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
| Cash flows from (used in) financing activities [abstract] | ||
| Dividends paid to non-controlling interests, classified as financing activities | 
                                                0
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                0
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             |