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 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 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 |
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 |
395,157,000
EUR
|
— | — | — | — | — | — | — |
361,718,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Right-of-use assets |
5,355,000
EUR
|
— | — | — | — | — | — | — |
5,592,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Intangible assets other than goodwill |
4,941,000
EUR
|
— | — | — | — | — | — | — |
5,484,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Deferred tax assets |
7,122,000
EUR
|
— | — | — | — | — | — | — |
11,085,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Non-current assets |
412,620,000
EUR
|
— | — | — | — | — | — | — |
383,924,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Current assets [abstract] | |||||||||||||||||||||
| Current inventories |
41,000
EUR
|
— | — | — | — | — | — | — |
3,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Current tax assets, current |
28,934,000
EUR
|
— | — | — | — | — | — | — |
28,598,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Other current financial assets |
4,444,000
EUR
|
— | — | — | — | — | — | — |
7,361,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Cash and cash equivalents |
634,000
EUR
|
— | — | — | — | — | — | — |
499,000
EUR
|
— | — | — | — | — | — | — | — | — |
1,819,000
EUR
|
— | — |
| Current assets |
264,797,000
EUR
|
— | — | — | — | — | — | — |
334,621,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Assets |
677,417,000
EUR
|
— | — | — | — | — | — | — |
718,545,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Equity and liabilities [abstract] | |||||||||||||||||||||
| Equity [abstract] | |||||||||||||||||||||
| Issued capital |
146,256,000
EUR
|
— | — | — | — | — | — | — |
146,256,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Retained earnings |
48,386,000
EUR
|
— | — | — | — | — | — | — |
49,484,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Share premium |
8,579,000
EUR
|
— | — | — | — | — | — | — |
8,579,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Other reserves |
40,000
EUR
|
— | — | — | — | — | — | — |
47,003,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Equity |
238,686,000
EUR
|
48,386,000
EUR
|
23,320,000
EUR
|
40,000
EUR
|
8,579,000
EUR
|
146,256,000
EUR
|
12,105,000
EUR
|
14,626,000
EUR
|
166,980,000
EUR
|
-
EUR
|
47,003,000
EUR
|
8,579,000
EUR
|
49,484,000
EUR
|
146,256,000
EUR
|
20,013,000
EUR
|
-
EUR
|
14,626,000
EUR
|
32,034,000
EUR
|
221,508,000
EUR
|
8,579,000
EUR
|
146,256,000
EUR
|
| Liabilities [abstract] | |||||||||||||||||||||
| Non-current liabilities [abstract] | |||||||||||||||||||||
| Non-current provisions [abstract] | |||||||||||||||||||||
| Non-current provisions |
823,000
EUR
|
— | — | — | — | — | — | — |
941,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Other non-current non-financial liabilities |
264,173,000
EUR
|
— | — | — | — | — | — | — |
64,095,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Non-current liabilities |
300,057,000
EUR
|
— | — | — | — | — | — | — |
139,012,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Current liabilities [abstract] | |||||||||||||||||||||
| Current provisions [abstract] | |||||||||||||||||||||
| Current provisions |
1,607,000
EUR
|
— | — | — | — | — | — | — |
648,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Trade and other current payables |
56,153,000
EUR
|
— | — | — | — | — | — | — |
70,146,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Other current non-financial liabilities |
36,901,000
EUR
|
— | — | — | — | — | — | — |
287,400,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Current liabilities |
138,674,000
EUR
|
— | — | — | — | — | — | — |
412,553,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Liabilities |
438,731,000
EUR
|
— | — | — | — | — | — | — |
551,565,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Equity and liabilities |
677,417,000
EUR
|
— | — | — | — | — | — | — |
718,545,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — |