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 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 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 |
As at 2021-12-31 |
As at 2021-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of financial position [abstract] | |||||||||||||||||||||||||||
| Assets [abstract] | |||||||||||||||||||||||||||
| Property, plant and equipment |
115,800,000
EUR
|
— | — | — | — | — | — | — | — |
133,600,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Right-of-use assets |
55,000,000
EUR
|
— | — | — | — | — | — | — | — |
60,700,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Investments accounted for using equity method |
2,100,000
EUR
|
— | — | — | — | — | — | — | — |
0
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Deferred tax assets |
11,400,000
EUR
|
— | — | — | — | — | — | — | — |
14,300,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Cash and cash equivalents |
164,700,000
EUR
|
— | — |
164,700,000
EUR
|
— | — | — | — | — |
212,900,000
EUR
|
— |
212,900,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — |
58,300,000
EUR
|
— | — |
| Assets |
721,500,000
EUR
|
— | — | — | — | — | — | — | — |
797,900,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity and liabilities [abstract] | |||||||||||||||||||||||||||
| Equity [abstract] | |||||||||||||||||||||||||||
| Issued capital |
84,600,000
EUR
|
— | — | — | — | — | — | — | — |
100,300,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Retained earnings |
140,100,000
EUR
|
— | — | — | — | — | — | — | — |
80,600,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Share premium |
180,600,000
EUR
|
— | — | — | — | — | — | — | — |
208,200,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Treasury shares |
3,200,000
EUR
|
— | — | — | — | — | — | — | — |
23,900,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Other reserves |
91,800,000
EUR
|
— | — | — | — | — | — | — | — |
72,200,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity attributable to owners of parent |
213,700,000
EUR
|
— | — | — | — | — | — | — | — |
276,200,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Non-controlling interests |
4,400,000
EUR
|
— | — | — | — | — | — | — | — |
4,300,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity |
218,100,000
EUR
|
140,100,000
EUR
|
91,800,000
EUR
|
— |
4,400,000
EUR
|
180,600,000
EUR
|
84,600,000
EUR
|
3,200,000
EUR
|
213,700,000
EUR
|
280,500,000
EUR
|
72,200,000
EUR
|
— |
4,300,000
EUR
|
208,200,000
EUR
|
80,600,000
EUR
|
23,900,000
EUR
|
100,300,000
EUR
|
276,200,000
EUR
|
1,300,000
EUR
|
107,100,000
EUR
|
45,000,000
EUR
|
265,500,000
EUR
|
261,300,000
EUR
|
4,200,000
EUR
|
— |
219,100,000
EUR
|
105,600,000
EUR
|
| Liabilities [abstract] | |||||||||||||||||||||||||||
| Deferred tax liabilities |
21,000,000
EUR
|
— | — | — | — | — | — | — | — |
24,200,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Liabilities |
503,400,000
EUR
|
— | — | — | — | — | — | — | — |
517,400,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity and liabilities |
721,500,000
EUR
|
— | — | — | — | — | — | — | — |
797,900,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |