Statement Of Financial Position [Abstract]
| Concept |
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 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of financial position [abstract] | |||||||||||||||
| Assets [abstract] | |||||||||||||||
| Property, plant and equipment |
100,100,000
EUR
|
— | — | — | — |
109,000,000
EUR
|
— | — | — | — | — | — | — | — | — |
| Right-of-use assets |
56,200,000
EUR
|
— | — | — | — |
65,200,000
EUR
|
— | — | — | — | — | — | — | — | — |
| Goodwill |
169,100,000
EUR
|
— | — | — | — |
166,000,000
EUR
|
— | — | — | — | — | — | — | — | — |
| Deferred tax assets |
15,700,000
EUR
|
— | — | — | — |
20,500,000
EUR
|
— | — | — | — | — | — | — | — | — |
| Cash and cash equivalents |
15,000,000
EUR
|
— | — | — | — |
13,100,000
EUR
|
— | — | — | — | — | — |
19,300,000
EUR
|
— | — |
| Assets |
841,200,000
EUR
|
— | — | — | — |
763,500,000
EUR
|
— | — | — | — | — | — | — | — | — |
| Equity and liabilities [abstract] | |||||||||||||||
| Equity [abstract] | |||||||||||||||
| Issued capital |
72,900,000
EUR
|
— | — | — | — |
72,900,000
EUR
|
— | — | — | — | — | — | — | — | — |
| Retained earnings |
131,500,000
EUR
|
— | — | — | — |
77,700,000
EUR
|
— | — | — | — | — | — | — | — | — |
| Other reserves |
3,300,000
EUR
|
— | — | — | — |
15,800,000
EUR
|
— | — | — | — | — | — | — | — | — |
| Equity |
207,700,000
EUR
|
131,500,000
EUR
|
4,000,000
EUR
|
700,000
EUR
|
72,900,000
EUR
|
134,800,000
EUR
|
72,900,000
EUR
|
77,700,000
EUR
|
900,000
EUR
|
14,900,000
EUR
|
400,000
EUR
|
81,200,000
EUR
|
158,000,000
EUR
|
4,300,000
EUR
|
72,900,000
EUR
|
| Liabilities [abstract] | |||||||||||||||
| Deferred tax liabilities |
5,900,000
EUR
|
— | — | — | — |
6,900,000
EUR
|
— | — | — | — | — | — | — | — | — |
| Liabilities |
633,500,000
EUR
|
— | — | — | — |
628,700,000
EUR
|
— | — | — | — | — | — | — | — | — |
| Equity and liabilities |
841,200,000
EUR
|
— | — | — | — |
763,500,000
EUR
|
— | — | — | — | — | — | — | — | — |