Subclassifications Of Assets, Liabilities And Equities [Abstract]
| Concept |
As at 2022-12-31 |
As at 2021-12-31 |
As at 2020-12-31 |
|---|---|---|---|
| Subclassifications of assets, liabilities and equities [abstract] | |||
| Property, plant and equipment [abstract] | |||
| Property, plant and equipment |
2,752,000
EUR
|
22,193,000
EUR
|
— |
| Intangible assets and goodwill [abstract] | |||
| Intangible assets other than goodwill [abstract] | |||
| Intangible assets other than goodwill |
842,000
EUR
|
610,000
EUR
|
— |
| Investment property [abstract] | |||
| Investment property |
1,640,110,000
EUR
|
1,514,430,000
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 |
61,655,000
EUR
|
52,990,000
EUR
|
— |
| Investments accounted for using equity method [abstract] | |||
| Investments accounted for using equity method |
9,724,000
EUR
|
8,190,000
EUR
|
— |
| Trade and other current receivables [abstract] | |||
| Trade and other current receivables |
6,074,000
EUR
|
6,929,000
EUR
|
— |
| Categories of non-current financial assets [abstract] | |||
| Non-current loans and receivables |
4,568,394,000
EUR
|
4,948,061,000
EUR
|
— |
| Categories of current financial assets [abstract] | |||
| Current loans and receivables |
144,579,000
EUR
|
186,859,000
EUR
|
— |
| Classes of current inventories [abstract] | |||
| Current inventories |
402,000
EUR
|
355,000
EUR
|
— |
| Classes of current inventories, alternative [abstract] | |||
| Cash and cash equivalents [abstract] | |||
| Cash and cash equivalents |
104,082,000
EUR
|
210,076,000
EUR
|
249,190,000
EUR
|
| Miscellaneous current assets [abstract] | |||
| Current derivative financial assets |
13,730,000
EUR
|
2,078,000
EUR
|
— |
| Trade and other current payables [abstract] | |||
| Trade and other current payables |
12,623,000
EUR
|
8,953,000
EUR
|
— |
| Issued capital [abstract] | |||
| Issued capital |
13,145,000
EUR
|
13,145,000
EUR
|
— |
| Retained earnings [abstract] | |||
| Retained earnings |
469,830,000
EUR
|
322,590,000
EUR
|
— |
| Net assets (liabilities) [abstract] | |||
| Assets |
6,867,624,000
EUR
|
7,383,642,000
EUR
|
— |
| Net current assets (liabilities) [abstract] | |||
| Current assets |
463,701,000
EUR
|
703,173,000
EUR
|
— |
| Current liabilities |
340,295,000
EUR
|
331,588,000
EUR
|
— |
| Assets less current liabilities [abstract] |