Subclassifications Of Assets, Liabilities And Equities [Abstract]
| Concept |
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 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|
| Subclassifications of assets, liabilities and equities [abstract] | ||||||||||
| Property, plant and equipment [abstract] | ||||||||||
| Property, plant and equipment |
110,653,000
EUR
|
— | — | — | — | — |
313,406,000
EUR
|
— | — | — |
| Intangible assets and goodwill [abstract] | ||||||||||
| Intangible assets other than goodwill [abstract] | ||||||||||
| Intangible assets other than goodwill |
77,357,000
EUR
|
— | — | — | — | — |
34,945,000
EUR
|
— | — | — |
| Goodwill |
63,218,000
EUR
|
— | — | — | — | — |
13,721,000
EUR
|
— | — | — |
| Investment property [abstract] | ||||||||||
| Investment property |
113,000
EUR
|
— | — | — | — | — |
7,564,000
EUR
|
— | — | — |
| Trade and other non-current receivables [abstract] | ||||||||||
| Trade and other non-current receivables |
15,350,000
EUR
|
— | — | — | — | — |
18,730,000
EUR
|
— | — | — |
| Trade and other current receivables [abstract] | ||||||||||
| Current trade receivables |
64,102,000
EUR
|
— | — | — | — | — |
141,596,000
EUR
|
— | — | — |
| Classes of current inventories [abstract] | ||||||||||
| Current inventories |
54,210,000
EUR
|
— | — | — | — | — |
112,897,000
EUR
|
— | — | — |
| Classes of current inventories, alternative [abstract] | ||||||||||
| Cash and cash equivalents [abstract] | ||||||||||
| Cash and cash equivalents |
38,655,000
EUR
|
26,558,000
EUR
|
65,213,000
EUR
|
84,055,000
EUR
|
41,664,000
EUR
|
125,719,000
EUR
|
118,367,000
EUR
|
76,790,000
EUR
|
2,465,000
EUR
|
79,255,000
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 |
557,361,000
EUR
|
— | — | — | — | — |
141,466,000
EUR
|
— | — | — |
| Classes of other provisions [abstract] | ||||||||||
| Other provisions [abstract] | ||||||||||
| Other non-current provisions |
17,992,000
EUR
|
— | — | — | — | — |
21,993,000
EUR
|
— | — | — |
| Other current provisions |
256,000
EUR
|
— | — | — | — | — |
3,386,000
EUR
|
— | — | — |
| Trade and other non-current payables [abstract] | ||||||||||
| Other non-current payables |
1,016,000
EUR
|
— | — | — | — | — |
25,000
EUR
|
— | — | — |
| Trade and other current payables [abstract] | ||||||||||
| Current trade payables |
73,995,000
EUR
|
— | — | — | — | — |
120,247,000
EUR
|
— | — | — |
| Current accruals and current deferred income including current contract liabilities [abstract] | ||||||||||
| Current deferred income including current contract liabilities [abstract] | ||||||||||
| Current contract liabilities [abstract] | ||||||||||
| Current contract liabilities |
7,587,000
EUR
|
— | — | — | — | — |
9,081,000
EUR
|
— | — | — |
| Other current payables |
28,901,000
EUR
|
— | — | — | — | — |
66,885,000
EUR
|
— | — | — |
| Categories of non-current financial liabilities [abstract] | ||||||||||
| Non-current financial liabilities |
194,383,000
EUR
|
— | — | — | — | — |
208,505,000
EUR
|
— | — | — |
| Categories of current financial liabilities [abstract] | ||||||||||
| Current financial liabilities |
93,527,000
EUR
|
— | — | — | — | — |
59,064,000
EUR
|
— | — | — |
| Issued capital [abstract] | ||||||||||
| Issued capital |
140,521,000
EUR
|
— | — | — | — | — |
139,909,000
EUR
|
— | — | — |
| Retained earnings [abstract] | ||||||||||
| Retained earnings |
129,444,000
EUR
|
— | — | — | — | — |
112,404,000
EUR
|
— | — | — |
| Net assets (liabilities) [abstract] | ||||||||||
| Assets |
1,075,659,000
EUR
|
— | — | — | — | — |
1,055,739,000
EUR
|
— | — | — |
| Net current assets (liabilities) [abstract] | ||||||||||
| Current assets |
751,658,000
EUR
|
— | — | — | — | — |
534,855,000
EUR
|
— | — | — |
| Current liabilities |
380,422,000
EUR
|
— | — | — | — | — |
358,546,000
EUR
|
— | — | — |
| Assets less current liabilities [abstract] |