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 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 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 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of financial position [abstract] | ||||||||||||||||||||||||
| Assets [abstract] | ||||||||||||||||||||||||
| Non-current assets [abstract] | ||||||||||||||||||||||||
| Property, plant and equipment | — | — |
121,900,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
118,700,000
EUR
|
— | — | — | — | — | — | — | — | — |
| Deferred tax assets | — | — |
18,300,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
18,200,000
EUR
|
— | — | — | — | — | — | — | — | — |
| Other non-current financial assets | — | — |
400,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
3,000,000
EUR
|
— | — | — | — | — | — | — | — | — |
| Non-current assets | — | — |
324,500,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
299,600,000
EUR
|
— | — | — | — | — | — | — | — | — |
| Current assets [abstract] | ||||||||||||||||||||||||
| Current inventories | — | — |
79,700,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
61,700,000
EUR
|
— | — | — | — | — | — | — | — | — |
| Trade and other current receivables | — | — |
65,300,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
53,400,000
EUR
|
— | — | — | — | — | — | — | — | — |
| Current tax assets, current | — | — |
2,700,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
1,400,000
EUR
|
— | — | — | — | — | — | — | — | — |
| Cash and cash equivalents | — | — |
18,600,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
13,000,000
EUR
|
— | — | — | — | — | — | — | — | — |
| Current assets | — | — |
166,300,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
129,500,000
EUR
|
— | — | — | — | — | — | — | — | — |
| Assets | — | — |
490,800,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
429,100,000
EUR
|
— | — | — | — | — | — | — | — | — |
| Equity and liabilities [abstract] | ||||||||||||||||||||||||
| Equity [abstract] | ||||||||||||||||||||||||
| Issued capital | — | — |
29,900,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
29,900,000
EUR
|
— | — | — | — | — | — | — | — | — |
| Retained earnings | — | — |
14,400,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
4,300,000
EUR
|
— | — | — | — | — | — | — | — | — |
| Share premium | — | — |
45,800,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
51,700,000
EUR
|
— | — | — | — | — | — | — | — | — |
| Other reserves | — | — |
132,900,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
117,500,000
EUR
|
— | — | — | — | — | — | — | — | — |
| Equity |
1,900,000
EUR
|
14,400,000
EUR
|
223,000,000
EUR
|
200,000
EUR
|
127,000,000
EUR
|
45,800,000
EUR
|
7,600,000
EUR
|
29,900,000
EUR
|
4,300,000
EUR
|
100,000
EUR
|
29,900,000
EUR
|
3,400,000
EUR
|
200,000
EUR
|
51,700,000
EUR
|
203,400,000
EUR
|
121,000,000
EUR
|
5,300,000
EUR
|
51,700,000
EUR
|
202,600,000
EUR
|
8,300,000
EUR
|
111,200,000
EUR
|
3,700,000
EUR
|
100,000
EUR
|
29,900,000
EUR
|
| Liabilities [abstract] | ||||||||||||||||||||||||
| Non-current liabilities [abstract] | ||||||||||||||||||||||||
| Non-current provisions [abstract] | ||||||||||||||||||||||||
| Non-current provisions for employee benefits | — | — |
14,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
15,500,000
EUR
|
— | — | — | — | — | — | — | — | — |
| Other non-current provisions | — | — |
900,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
700,000
EUR
|
— | — | — | — | — | — | — | — | — |
| Deferred tax liabilities | — | — |
17,700,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
15,900,000
EUR
|
— | — | — | — | — | — | — | — | — |
| Non-current liabilities | — | — |
169,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
136,300,000
EUR
|
— | — | — | — | — | — | — | — | — |
| Current liabilities [abstract] | ||||||||||||||||||||||||
| Current provisions [abstract] | ||||||||||||||||||||||||
| Other current provisions | — | — |
1,200,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
1,500,000
EUR
|
— | — | — | — | — | — | — | — | — |
| Trade and other current payables | — | — |
74,300,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
65,200,000
EUR
|
— | — | — | — | — | — | — | — | — |
| Current tax liabilities, current | — | — |
6,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
5,200,000
EUR
|
— | — | — | — | — | — | — | — | — |
| Current liabilities | — | — |
98,800,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
89,400,000
EUR
|
— | — | — | — | — | — | — | — | — |
| Liabilities | — | — |
267,800,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
225,700,000
EUR
|
— | — | — | — | — | — | — | — | — |
| Equity and liabilities | — | — |
490,800,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
429,100,000
EUR
|
— | — | — | — | — | — | — | — | — |