Subclassifications Of Assets, Liabilities And Equities [Abstract]
| Concept |
As at 2023-12-31 |
As at 2022-12-31 |
As at 2021-12-31 |
|---|---|---|---|
| Subclassifications of assets, liabilities and equities [abstract] | |||
| Property, plant and equipment [abstract] | |||
| Property, plant and equipment |
2,494,000
EUR
|
2,752,000
EUR
|
— |
| Intangible assets and goodwill [abstract] | |||
| Intangible assets other than goodwill [abstract] | |||
| Intangible assets other than goodwill |
918,000
EUR
|
842,000
EUR
|
— |
| Investment property [abstract] | |||
| Investment property |
1,589,610,000
EUR
|
1,640,110,000
EUR
|
— |
| Investments in subsidiaries, joint ventures and associates reported in separate financial statements [abstract] | |||
| Investments in subsidiaries, joint ventures and associates reported in separate financial statements |
54,571,000
EUR
|
61,655,000
EUR
|
— |
| Investments accounted for using equity method [abstract] | |||
| Investments accounted for using equity method |
16,939,000
EUR
|
9,724,000
EUR
|
— |
| Trade and other current receivables [abstract] | |||
| Trade and other current receivables |
7,942,000
EUR
|
6,074,000
EUR
|
— |
| Categories of non-current financial assets [abstract] | |||
| Non-current loans and receivables |
4,319,000,000
EUR
|
4,568,394,000
EUR
|
— |
| Categories of current financial assets [abstract] | |||
| Current loans and receivables |
719,276,000
EUR
|
144,579,000
EUR
|
— |
| Classes of current inventories [abstract] | |||
| Current inventories |
50,344,000
EUR
|
402,000
EUR
|
— |
| Classes of current inventories, alternative [abstract] | |||
| Cash and cash equivalents [abstract] | |||
| Cash and cash equivalents |
83,602,000
EUR
|
104,082,000
EUR
|
210,076,000
EUR
|
| Miscellaneous current assets [abstract] | |||
| Current derivative financial assets |
1,810,000
EUR
|
13,730,000
EUR
|
— |
| Trade and other current payables [abstract] | |||
| Trade and other current payables |
22,514,000
EUR
|
12,623,000
EUR
|
— |
| Issued capital [abstract] | |||
| Issued capital |
13,145,000
EUR
|
13,145,000
EUR
|
— |
| Retained earnings [abstract] | |||
| Retained earnings |
514,887,000
EUR
|
469,830,000
EUR
|
— |
| Net assets (liabilities) [abstract] | |||
| Assets |
7,191,125,000
EUR
|
6,867,624,000
EUR
|
— |
| Net current assets (liabilities) [abstract] | |||
| Current assets |
1,114,588,000
EUR
|
463,701,000
EUR
|
— |
| Current liabilities |
589,437,000
EUR
|
340,295,000
EUR
|
— |
| Assets less current liabilities [abstract] |