Disclosure Of Interests In Other Entities [Text Block]
| Concept | 2024-01-01 to 2024-12-31 | As at 2024-12-31 | 2024-01-01 to 2024-12-31 | 2024-01-01 to 2024-12-31 | 2024-01-01 to 2024-12-31 | 2024-01-01 to 2024-12-31 | 2023-01-01 to 2023-12-31 | 2023-01-01 to 2023-12-31 | As at 2023-12-31 | 2023-01-01 to 2023-12-31 | 2023-01-01 to 2023-12-31 | 2023-01-01 to 2023-12-31 | As at 2022-12-31 | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Disclosure of interests in other entities [text block] | 
                                                (51)
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | 
| Disclosure of interests in subsidiaries [text block] | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Disclosure of subsidiaries [text block] | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Disclosure of subsidiaries [abstract] | |||||||||||||
| Disclosure of subsidiaries [line items] | |||||||||||||
| Profit (loss) | 
                                                163,236
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | — | — | — | 
                                                163,236
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                179,068
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | — | 
                                                179,068
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | — | — | 
| Comprehensive income | 
                                                176,604
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | 
                                                553,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                16,119
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                2,199
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                163,236
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                196,592
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                3,713
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | 
                                                179,068
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                20,482
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                754,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | 
| Disclosure of interests in associates [text block] | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Disclosure of associates [text block] | 
                                                At Equity bilanzierte Gesellschaften
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | 
| Disclosure of associates [abstract] | |||||||||||||
| Disclosure of associates [line items] | |||||||||||||
| Other comprehensive income | 
                                                13,367
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | 
                                                553,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                16,119
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                2,199
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | 
                                                17,524
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                3,713
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | — | 
                                                20,482
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                754,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | 
| Investments accounted for using equity method | — | 
                                                875,718
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | — | — | — | — | — | 
                                                813,907
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | — | — | — | 
| Disclosure of interests in joint arrangements [text block] | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Disclosure of joint ventures [text block] | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Disclosure of joint ventures [abstract] | |||||||||||||
| Disclosure of joint ventures [line items] | |||||||||||||
| Cash and cash equivalents | — | 
                                                998,576
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | — | — | — | — | — | 
                                                605,120
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | — | — | 
                                                882,136
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
| Interest expense | 
                                                171,062
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | — | — | — | — | 
                                                121,058
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | — | — | — | — | — | 
| Tax expense (income) | 
                                                23,560
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | — | — | — | — | 
                                                27,204
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | — | — | — | — | — |