Subclassifications Of Assets, Liabilities And Equities [Abstract]
| Concept |
As at 2023-12-31 |
As at 2022-12-31 |
|---|---|---|
| Subclassifications of assets, liabilities and equities [abstract] | ||
| Property, plant and equipment [abstract] | ||
| Property, plant and equipment |
2,036,000
EUR
|
2,372,000
EUR
|
| Intangible assets and goodwill [abstract] | ||
| Intangible assets other than goodwill [abstract] | ||
| Intangible assets other than goodwill |
15,116,000
EUR
|
16,617,000
EUR
|
| Goodwill |
59,799,000
EUR
|
61,069,000
EUR
|
| Miscellaneous non-current assets [abstract] | ||
| Other non-current assets |
2,495,000
EUR
|
607,000
EUR
|
| Trade and other current receivables [abstract] | ||
| Current trade receivables |
6,636,000
EUR
|
6,376,000
EUR
|
| Cash and cash equivalents [abstract] | ||
| Cash and cash equivalents |
31,826,000
EUR
|
29,045,000
EUR
|
| Non-current assets or disposal groups classified as held for sale or as held for distribution to owners [abstract] | ||
| Non-current assets or disposal groups classified as held for sale |
0
EUR
|
12,660,000
EUR
|
| Miscellaneous current assets [abstract] | ||
| Current restricted cash and cash equivalents |
2,613,000
EUR
|
7,026,000
EUR
|
| Other current assets |
27,196,000
EUR
|
29,021,000
EUR
|
| Borrowings [abstract] | ||
| Non-current portion of non-current borrowings |
939,104,000
EUR
|
445,590,000
EUR
|
| Current borrowings and current portion of non-current borrowings [abstract] | ||
| Current borrowings |
0
EUR
|
495,537,000
EUR
|
| Non-current portion of non-current borrowings, by type [abstract] | ||
| Trade and other current payables [abstract] | ||
| Current trade payables |
4,057,000
EUR
|
7,141,000
EUR
|
| Miscellaneous non-current liabilities [abstract] | ||
| Other non-current liabilities |
2,740,000
EUR
|
3,423,000
EUR
|
| Miscellaneous current liabilities [abstract] | ||
| Other current liabilities |
31,425,000
EUR
|
28,913,000
EUR
|
| Issued capital [abstract] | ||
| Issued capital |
158,369,000
EUR
|
158,369,000
EUR
|
| Retained earnings [abstract] | ||
| Retained earnings |
27,082,000
EUR
|
3,699,000
EUR
|
| Accumulated other comprehensive income [abstract] | ||
| Accumulated other comprehensive income |
23,080,000
EUR
|
9,016,000
EUR
|
| Miscellaneous equity [abstract] | ||
| Additional paid-in capital |
270,831,000
EUR
|
270,381,000
EUR
|
| Net assets (liabilities) [abstract] | ||
| Assets |
1,435,815,000
EUR
|
1,437,778,000
EUR
|
| Liabilities |
1,012,281,000
EUR
|
1,027,185,000
EUR
|
| Net current assets (liabilities) [abstract] | ||
| Current assets |
70,935,000
EUR
|
74,699,000
EUR
|
| Current liabilities |
50,919,000
EUR
|
552,005,000
EUR
|
| Assets less current liabilities [abstract] |