Statement Of Financial Position [Abstract]
| Concept |
As at 2024-12-31 |
As at 2024-12-31 |
As at 2024-12-31 |
As at 2024-12-31 |
As at 2024-12-31 |
As at 2024-12-31 |
As at 2024-12-31 |
As at 2024-12-31 |
As at 2024-12-31 |
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 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of financial position [abstract] | |||||||||||||||||||||||||||
| Assets [abstract] | |||||||||||||||||||||||||||
| Property, plant and equipment | — | — | — | — | — | — | — | — |
63,200,000
EUR
|
62,700,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Right-of-use assets | — | — | — | — | — | — | — | — |
59,000,000
EUR
|
67,900,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Goodwill | — | — | — | — | — | — | — | — |
299,100,000
EUR
|
304,300,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Intangible assets other than goodwill | — | — | — | — | — | — | — | — |
194,100,000
EUR
|
206,300,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Investments accounted for using equity method | — | — | — | — | — | — | — | — |
11,600,000
EUR
|
12,300,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Trade and other receivables | — | — | — | — | — | — | — | — |
113,800,000
EUR
|
110,100,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Cash and cash equivalents | — | — | — | — | — | — | — | — |
181,500,000
EUR
|
212,700,000
EUR
|
— | — | — | — | — | — | — | — | — |
91,400,000
EUR
|
— | — | — | — | — | — | — |
| Assets | — | — | — | — | — | — | — | — |
1,069,400,000
EUR
|
1,135,700,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity and liabilities [abstract] | |||||||||||||||||||||||||||
| Equity [abstract] | |||||||||||||||||||||||||||
| Issued capital | — | — | — | — | — | — | — | — |
61,500,000
EUR
|
61,500,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Retained earnings | — | — | — | — | — | — | — | — |
50,100,000
EUR
|
54,500,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity attributable to owners of parent | — | — | — | — | — | — | — | — |
397,900,000
EUR
|
407,300,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Non-controlling interests | — | — | — | — | — | — | — | — |
900,000
EUR
|
500,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity |
0
EUR
|
50,100,000
EUR
|
61,500,000
EUR
|
900,000
EUR
|
50,800,000
EUR
|
397,900,000
EUR
|
400,000
EUR
|
336,800,000
EUR
|
398,700,000
EUR
|
407,800,000
EUR
|
54,500,000
EUR
|
500,000
EUR
|
61,500,000
EUR
|
44,000,000
EUR
|
407,300,000
EUR
|
1,500,000
EUR
|
336,800,000
EUR
|
0
EUR
|
500,000
EUR
|
481,400,000
EUR
|
900,000
EUR
|
110,700,000
EUR
|
61,500,000
EUR
|
33,000,000
EUR
|
480,500,000
EUR
|
4,200,000
EUR
|
336,800,000
EUR
|
| Liabilities [abstract] | |||||||||||||||||||||||||||
| Current tax liabilities | — | — | — | — | — | — | — | — |
1,500,000
EUR
|
2,200,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Deferred tax liabilities | — | — | — | — | — | — | — | — |
35,400,000
EUR
|
36,500,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Liabilities | — | — | — | — | — | — | — | — |
670,700,000
EUR
|
727,900,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity and liabilities | — | — | — | — | — | — | — | — |
1,069,400,000
EUR
|
1,135,700,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |