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 |
24,313,000
EUR
|
21,645,000
EUR
|
— |
| Intangible assets and goodwill [abstract] | |||
| Intangible assets other than goodwill [abstract] | |||
| Intangible assets other than goodwill |
20,275,000
EUR
|
42,917,000
EUR
|
— |
| Goodwill |
192,294,000
EUR
|
192,294,000
EUR
|
— |
| Trade and other current receivables [abstract] | |||
| Current trade receivables |
69,156,000
EUR
|
65,743,000
EUR
|
— |
| Current prepayments and current accrued income including current contract assets [abstract] | |||
| Current accrued income including current contract assets [abstract] | |||
| Current contract assets |
42,778,000
EUR
|
48,298,000
EUR
|
— |
| Categories of non-current financial assets [abstract] | |||
| Non-current financial assets at fair value through other comprehensive income [abstract] | |||
| Non-current investments in equity instruments designated at fair value through other comprehensive income |
0
EUR
|
13,814,000
EUR
|
— |
| Classes of current inventories [abstract] | |||
| Current inventories |
14,823,000
EUR
|
14,660,000
EUR
|
— |
| Classes of current inventories, alternative [abstract] | |||
| Cash and cash equivalents [abstract] | |||
| Cash and cash equivalents |
87,532,000
EUR
|
132,729,000
EUR
|
205,820,000
EUR
|
| Miscellaneous current assets [abstract] | |||
| Current investments | — | — | — |
| Short-term deposits, not classified as cash equivalents |
227,662,000
EUR
|
171,000,000
EUR
|
— |
| Current prepayments and other current assets |
36,209,000
EUR
|
36,803,000
EUR
|
— |
| Trade and other non-current payables [abstract] | |||
| Non-current accruals and non-current deferred income including non-current contract liabilities [abstract] | |||
| Non-current deferred income including non-current contract liabilities [abstract] | |||
| Non-current contract liabilities [abstract] | |||
| Non-current contract liabilities |
267,059,000
EUR
|
263,043,000
EUR
|
— |
| Trade and other current payables [abstract] | |||
| Current trade payables |
21,168,000
EUR
|
6,102,000
EUR
|
— |
| Miscellaneous current liabilities [abstract] | |||
| Current accrued expenses and other current liabilities |
67,760,000
EUR
|
71,705,000
EUR
|
— |
| Net assets (liabilities) [abstract] | |||
| Assets |
795,891,000
EUR
|
807,503,000
EUR
|
— |
| Net current assets (liabilities) [abstract] | |||
| Current assets |
488,795,000
EUR
|
476,123,000
EUR
|
— |
| Current liabilities |
292,922,000
EUR
|
297,559,000
EUR
|
— |
| Assets less current liabilities [abstract] |