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 | — | 
                                                13 245
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                13 460
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | 
| Cash flows from (used in) investing activities [abstract] | ||||
| Cash flows used in obtaining control of subsidiaries or other businesses, classified as investing activities | — | — | 
                                                1 832
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | 
| Cash flows from (used in) investing activities | — | 
                                                25 835
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                9 836
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | 
| Cash flows from (used in) financing activities [abstract] | ||||
| Proceeds from borrowings, classified as financing activities | — | 
                                                17 872
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                5 610
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | 
| Repayments of borrowings, classified as financing activities | — | 
                                                10 130
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                7 123
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | 
| Payments of lease liabilities, classified as financing activities | — | — | 
                                                14,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | 
| Cash flows from (used in) financing activities | — | 
                                                381,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                7 656
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | 
| Increase (decrease) in cash and cash equivalents before effect of exchange rate changes | — | 
                                                12 972
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                4 032
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | 
| Effect of exchange rate changes on cash and cash equivalents [abstract] | ||||
| Effect of exchange rate changes on cash and cash equivalents | — | 
                                                —
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                —
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | 
| Cash and cash equivalents | 
                                                50 167
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | — | 
                                                63 143
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             |