Subclassifications Of Assets, Liabilities And Equities [Abstract]
| Concept |
As at 2024-12-31 |
As at 2024-12-31 |
As at 2023-12-31 |
As at 2023-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
|---|---|---|---|---|---|---|
| Subclassifications of assets, liabilities and equities [abstract] | ||||||
| Property, plant and equipment [abstract] | ||||||
| Property, plant and equipment |
342,941
EUR
|
213,818
EUR
|
353,292
EUR
|
221,223
EUR
|
— | — |
| Intangible assets and goodwill [abstract] | ||||||
| Intangible assets other than goodwill [abstract] | ||||||
| Intangible assets other than goodwill |
974,000
EUR
|
882,000
EUR
|
1,201
EUR
|
1,080
EUR
|
— | — |
| Investments accounted for using equity method [abstract] | ||||||
| Investments in joint ventures accounted for using equity method |
9,922
EUR
|
-
EUR
|
6,256
EUR
|
-
EUR
|
— | — |
| Miscellaneous non-current assets [abstract] | ||||||
| Non-current restricted cash and cash equivalents |
6,345
EUR
|
5,487
EUR
|
9,335
EUR
|
8,975
EUR
|
— | — |
| Trade and other current receivables [abstract] | ||||||
| Current trade receivables |
3,376
EUR
|
1,887
EUR
|
2,610
EUR
|
1,024
EUR
|
— | — |
| Classes of current inventories [abstract] | ||||||
| Current inventories |
1,126
EUR
|
622,000
EUR
|
843,000
EUR
|
548,000
EUR
|
— | — |
| Classes of current inventories, alternative [abstract] | ||||||
| Cash and cash equivalents [abstract] | ||||||
| Cash and cash equivalents |
29,876
EUR
|
23,572
EUR
|
50,348
EUR
|
43,371
EUR
|
70,437
EUR
|
55,583
EUR
|
| Miscellaneous current assets [abstract] | ||||||
| Current prepayments and other current assets |
1,908
EUR
|
4,506
EUR
|
1,481
EUR
|
2,958
EUR
|
— | — |
| Non-current portion of non-current borrowings, by type [abstract] | ||||||
| Non-current portion of non-current loans received |
146,112
EUR
|
87,756
EUR
|
162,251
EUR
|
97,416
EUR
|
— | — |
| Current borrowings and current portion of non-current borrowings, by type [abstract] | ||||||
| Current loans received and current portion of non-current loans received |
21,458
EUR
|
14,799
EUR
|
27,652
EUR
|
23,161
EUR
|
— | — |
| Trade and other current payables [abstract] | ||||||
| Current trade payables |
3,988
EUR
|
1,499
EUR
|
4,567
EUR
|
1,264
EUR
|
— | — |
| Current payables to related parties |
1,055
EUR
|
1,236
EUR
|
1,209
EUR
|
1,599
EUR
|
— | — |
| Other current payables |
11,694
EUR
|
8,828
EUR
|
14,483
EUR
|
11,810
EUR
|
— | — |
| Issued capital [abstract] | ||||||
| Issued capital |
13,614
EUR
|
13,614
EUR
|
13,614
EUR
|
13,614
EUR
|
— | — |
| Retained earnings [abstract] | ||||||
| Retained earnings |
8,476
EUR
|
37,598
EUR
|
6,314
EUR
|
32,687
EUR
|
— | — |
| Accumulated other comprehensive income [abstract] | ||||||
| Reserve of cash flow hedges |
37,000
EUR
|
-
EUR
|
210,000
EUR
|
-
EUR
|
— | — |
| Net assets (liabilities) [abstract] | ||||||
| Assets |
444,926
EUR
|
395,870
EUR
|
470,293
EUR
|
414,055
EUR
|
— | — |
| Liabilities |
231,236
EUR
|
121,666
EUR
|
256,856
EUR
|
142,798
EUR
|
— | — |
| Net current assets (liabilities) [abstract] | ||||||
| Current assets |
43,739
EUR
|
38,040
EUR
|
55,381
EUR
|
47,901
EUR
|
— | — |
| Current liabilities |
44,906
EUR
|
26,409
EUR
|
51,457
EUR
|
37,879
EUR
|
— | — |
| Assets less current liabilities [abstract] |