Statement Of Cash Flows [Abstract]
| Concept | As at 2024-08-31 | 2023-09-01 to 2024-08-31 | 2022-09-01 to 2023-08-31 | As at 2023-08-31 | 
|---|---|---|---|---|
| Statement of cash flows [abstract] | ||||
| Cash flows from (used in) operating activities [abstract] | ||||
| Cash flows from (used in) operating activities | — | 
                                                8 066
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                5 190
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | 
| Cash flows from (used in) investing activities [abstract] | ||||
| Cash flows from losing control of subsidiaries or other businesses, classified as investing activities | — | 
                                                0
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                0
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | 
| Cash flows from (used in) investing activities | — | 
                                                96 817
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                661,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | 
| Cash flows from (used in) financing activities [abstract] | ||||
| Proceeds from borrowings, classified as financing activities | — | 
                                                20 353
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                166 677
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | 
| Repayments of borrowings, classified as financing activities | — | 
                                                112 058
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                157 907
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | 
| Interest paid, classified as financing activities | — | 
                                                14 392
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                7 345
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | 
| Cash flows from (used in) financing activities | — | 
                                                106 096
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                1 424
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | 
| Increase (decrease) in cash and cash equivalents after effect of exchange rate changes | — | 
                                                1 212
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                5 954
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | 
| Cash and cash equivalents | 
                                                5 138
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | — | 
                                                6 351
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             |