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 |
20,584,000
EUR
|
18,974,000
EUR
|
— |
| Intangible assets and goodwill [abstract] | |||
| Intangible assets and goodwill |
-
EUR
|
-
EUR
|
— |
| Miscellaneous non-current assets [abstract] | |||
| Other non-current assets |
13,117,000
EUR
|
16,537,000
EUR
|
— |
| Trade and other current receivables [abstract] | |||
| Current trade receivables |
13,134,000
EUR
|
19,615,000
EUR
|
— |
| Current prepayments and current accrued income other than current contract assets [abstract] | |||
| Current prepayments [abstract] | |||
| Current prepaid expenses |
4,589,000
EUR
|
3,920,000
EUR
|
— |
| Current prepayments and current accrued income including current contract assets [abstract] | |||
| Current accrued income including current contract assets [abstract] | |||
| Current accrued income including current contract assets |
14,427,000
EUR
|
8,724,000
EUR
|
— |
| Categories of non-current financial assets [abstract] | |||
| Non-current financial assets |
53,400,000
EUR
|
41,570,000
EUR
|
— |
| Cash and cash equivalents [abstract] | |||
| Cash and cash equivalents |
423,941,000
EUR
|
422,021,000
EUR
|
392,558,000
EUR
|
| Miscellaneous current assets [abstract] | |||
| Other current assets |
17,216,000
EUR
|
13,030,000
EUR
|
— |
| Borrowings [abstract] | |||
| Non-current portion of non-current borrowings |
-
EUR
|
-
EUR
|
— |
| Current borrowings and current portion of non-current borrowings [abstract] | |||
| Current portion of non-current borrowings |
-
EUR
|
-
EUR
|
— |
| Current borrowings and current portion of non-current borrowings |
-
EUR
|
60,000
EUR
|
— |
| Non-current portion of non-current borrowings, by type [abstract] | |||
| Current borrowings and current portion of non-current borrowings, by type [abstract] | |||
| Trade and other current payables [abstract] | |||
| Current trade payables |
14,721,000
EUR
|
23,906,000
EUR
|
— |
| Miscellaneous non-current liabilities [abstract] | |||
| Other non-current liabilities |
-
EUR
|
-
EUR
|
— |
| Miscellaneous current liabilities [abstract] | |||
| Other current liabilities |
29,275,000
EUR
|
31,339,000
EUR
|
— |
| Miscellaneous liabilities [abstract] | |||
| Derivative financial liabilities |
1,451,000
EUR
|
5,795,000
EUR
|
— |
| Issued capital [abstract] | |||
| Issued capital |
1,792,000
EUR
|
1,746,000
EUR
|
— |
| Accumulated other comprehensive income [abstract] | |||
| Accumulated other comprehensive income |
1,671,000
EUR
|
4,122,000
EUR
|
— |
| Net assets (liabilities) [abstract] | |||
| Assets |
617,655,000
EUR
|
596,765,000
EUR
|
— |
| Liabilities |
120,161,000
EUR
|
123,312,000
EUR
|
— |
| Net current assets (liabilities) [abstract] | |||
| Current assets |
476,722,000
EUR
|
468,413,000
EUR
|
— |
| Current liabilities |
66,016,000
EUR
|
63,095,000
EUR
|
— |
| Assets less current liabilities [abstract] |