Statement Of Financial Position [Abstract]
| Concept | As at 2024-12-31 | As at 2024-12-31 | As at 2024-12-31 | As at 2024-12-31 | As at 2024-12-31 | As at 2024-12-31 | As at 2024-12-31 | As at 2024-12-31 | As at 2024-12-31 | As at 2024-12-31 | As at 2024-12-31 | As at 2024-12-31 | As at 2023-12-31 | As at 2023-12-31 | As at 2023-12-31 | As at 2023-12-31 | As at 2023-12-31 | As at 2023-12-31 | As at 2023-12-31 | As at 2023-12-31 | As at 2023-12-31 | As at 2023-12-31 | As at 2023-12-31 | As at 2023-12-31 | As at 2022-12-31 | As at 2022-12-31 | As at 2022-12-31 | As at 2022-12-31 | As at 2022-12-31 | As at 2022-12-31 | As at 2022-12-31 | As at 2022-12-31 | As at 2022-12-31 | As at 2022-12-31 | As at 2022-12-31 | As at 2022-12-31 | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of financial position [abstract] | ||||||||||||||||||||||||||||||||||||
| Assets [abstract] | ||||||||||||||||||||||||||||||||||||
| Property, plant and equipment | — | — | — | — | — | — | — | — | — | — | 
                                                1.379.040,7
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | — | 
                                                1.324.261,5
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Investment property | — | — | — | — | — | — | — | — | — | — | 
                                                133,925
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | — | 
                                                131,032
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Intangible assets other than goodwill | — | — | — | — | — | — | — | — | — | — | 
                                                151,502
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | — | 
                                                156,245
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Investments accounted for using equity method | — | — | — | — | — | — | — | — | — | — | 
                                                44,030
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | — | 
                                                42,854
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Cash and cash equivalents | — | — | — | — | — | — | — | — | — | — | 
                                                22,088
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | — | 
                                                31,904
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | 
                                                105,219
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | 
| Assets | — | — | — | — | — | — | — | — | — | — | 
                                                2.400.390,8
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | — | 
                                                2.194.357,1
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Equity and liabilities [abstract] | ||||||||||||||||||||||||||||||||||||
| Equity [abstract] | ||||||||||||||||||||||||||||||||||||
| Issued capital | — | — | — | — | — | — | — | — | — | — | 
                                                152,670
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | — | 
                                                152,670
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Retained earnings | — | — | — | — | — | — | — | — | — | — | 
                                                1.266.479,9
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | — | 
                                                1.160.577,0
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Other reserves | — | — | — | — | — | — | — | — | — | — | 
                                                14,518
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | — | 
                                                8,571
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Equity attributable to owners of parent | — | — | — | — | — | — | — | — | — | — | 
                                                1.522.517,4
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | — | 
                                                1.422.561,2
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Non-controlling interests | — | — | — | — | — | — | — | — | — | — | 
                                                144,654
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | — | 
                                                133,860
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Equity | 
                                                1.266.479,9
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                152,670
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                144,654
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                7,548
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                4,533
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                15,394
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                1.522.517,4
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                14,518
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                3,610
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                117,885
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                1.667.171,4
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                36,538
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                31,022
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                1.556.421,4
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                1.160.577,0
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                15,756
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                8,571
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                133,860
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                152,670
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                7,548
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                4,533
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                1.422.561,2
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                3,679
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                117,885
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                1.448.461,3
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                25,851
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                16,028
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                3,329
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                124,868
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                1.056.366,6
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                4,533
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                152,670
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                7,633
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                1.323.592,9
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                3,394
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                117,885
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
| Liabilities [abstract] | ||||||||||||||||||||||||||||||||||||
| Deferred tax liabilities | — | — | — | — | — | — | — | — | — | — | 
                                                11,840
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | — | 
                                                20,550
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Equity and liabilities | — | — | — | — | — | — | — | — | — | — | 
                                                2.400.390,8
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | — | 
                                                2.194.357,1
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |