Statement Of Financial Position [Abstract]
| Concept |
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 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of financial position [abstract] | |||||||||||||||
| Assets [abstract] | |||||||||||||||
| Non-current assets [abstract] | |||||||||||||||
| Property, plant and equipment | — | — | — |
3,835,000
EUR
|
— | — |
4,063,000
EUR
|
— | — | — | — | — | — | — | — |
| Investment property | — | — | — |
1,028,801,000
EUR
|
— | — |
1,259,235,000
EUR
|
— | — | — | — | — | — | — | — |
| Intangible assets other than goodwill | — | — | — |
32,000
EUR
|
— | — |
72,000
EUR
|
— | — | — | — | — | — | — | — |
| Other non-current financial assets | — | — | — |
0
EUR
|
— | — |
0
EUR
|
— | — | — | — | — | — | — | — |
| Non-current assets | — | — | — |
1,083,389,000
EUR
|
— | — |
1,277,027,000
EUR
|
— | — | — | — | — | — | — | — |
| Current assets [abstract] | |||||||||||||||
| Trade and other current receivables | — | — | — |
3,963,000
EUR
|
— | — |
1,403,000
EUR
|
— | — | — | — | — | — | — | — |
| Cash and cash equivalents | — | — | — |
202,000
EUR
|
— | — |
196,000
EUR
|
— | — | — | — | — | — | — | — |
| Current assets | — | — | — |
4,235,000
EUR
|
— | — |
2,763,000
EUR
|
— | — | — | — | — | — | — | — |
| Assets | — | — | — |
1,087,625,000
EUR
|
— | — |
1,279,790,000
EUR
|
— | — | — | — | — | — | — | — |
| Equity and liabilities [abstract] | |||||||||||||||
| Equity [abstract] | |||||||||||||||
| Issued capital | — | — | — |
74,171,000
EUR
|
— | — |
73,800,000
EUR
|
— | — | — | — | — | — | — | — |
| Share premium | — | — | — |
915,068,000
EUR
|
— | — |
915,447,000
EUR
|
— | — | — | — | — | — | — | — |
| Equity |
915,068,000
EUR
|
136,988,000
EUR
|
74,171,000
EUR
|
709,882,000
EUR
|
142,370,000
EUR
|
70,868,000
EUR
|
887,008,000
EUR
|
915,447,000
EUR
|
73,800,000
EUR
|
31,370,000
EUR
|
948,457,000
EUR
|
120,961,000
EUR
|
161,762,000
EUR
|
916,768,000
EUR
|
72,489,000
EUR
|
| Liabilities [abstract] | |||||||||||||||
| Non-current liabilities [abstract] | |||||||||||||||
| Deferred tax liabilities | — | — | — |
2,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
| Non-current liabilities | — | — | — |
339,775,000
EUR
|
— | — |
289,727,000
EUR
|
— | — | — | — | — | — | — | — |
| Current liabilities [abstract] | |||||||||||||||
| Trade and other current payables | — | — | — |
26,956,000
EUR
|
— | — |
23,361,000
EUR
|
— | — | — | — | — | — | — | — |
| Current liabilities | — | — | — |
37,968,000
EUR
|
— | — |
103,054,000
EUR
|
— | — | — | — | — | — | — | — |
| Liabilities | — | — | — |
377,743,000
EUR
|
— | — |
392,782,000
EUR
|
— | — | — | — | — | — | — | — |
| Equity and liabilities | — | — | — |
1,087,625,000
EUR
|
— | — |
1,279,790,000
EUR
|
— | — | — | — | — | — | — | — |