Statement Of Financial Position [Abstract]
| Concept |
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 2018-12-31 |
As at 2018-12-31 |
As at 2018-12-31 |
As at 2018-12-31 |
As at 2018-12-31 |
As at 2018-12-31 |
As at 2018-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of financial position [abstract] | |||||||||||||||||||||
| Assets [abstract] | |||||||||||||||||||||
| Non-current assets [abstract] | |||||||||||||||||||||
| Property, plant and equipment | — | — | — | — | — | — |
154 448
EUR
|
— | — |
173 778
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
| Goodwill | — | — | — | — | — | — |
153 923
EUR
|
— | — |
159 462
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
| Intangible assets other than goodwill | — | — | — | — | — | — |
22 247
EUR
|
— | — |
30 823
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
| Deferred tax assets | — | — | — | — | — | — |
9 126
EUR
|
— | — |
8 979
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
| Other non-current financial assets | — | — | — | — | — | — |
72 980
EUR
|
— | — |
140 521
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
| Non-current assets | — | — | — | — | — | — |
415 554
EUR
|
— | — |
518 153
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
| Current assets [abstract] | |||||||||||||||||||||
| Current inventories | — | — | — | — | — | — |
2 296
EUR
|
— | — |
2 282
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
| Current tax assets, current | — | — | — | — | — | — |
26 051
EUR
|
— | — |
9 034
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
| Cash and cash equivalents | — | — | — | — | — | — |
320 013
EUR
|
— | — |
231 071
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
| Current assets | — | — | — | — | — | — |
762 527
EUR
|
— | — |
736 975
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
| Assets | — | — | — | — | — | — |
1 178 081
EUR
|
— | — |
1 255 128
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
| Equity and liabilities [abstract] | |||||||||||||||||||||
| Equity [abstract] | |||||||||||||||||||||
| Issued capital | — | — | — | — | — | — |
4 050
EUR
|
— | — |
4 050
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
| Equity attributable to owners of parent | — | — | — | — | — | — |
611 097
EUR
|
— | — |
618 757
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
| Non-controlling interests | — | — | — | — | — | — |
1 066
EUR
|
— | — |
3 544
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
| Equity |
627 825
EUR
|
1 066
EUR
|
611 097
EUR
|
4 050
EUR
|
18 494
EUR
|
2 283
EUR
|
612 164
EUR
|
618 757
EUR
|
3 544
EUR
|
622 301
EUR
|
626 308
EUR
|
9 336
EUR
|
2 265
EUR
|
4 050
EUR
|
5 152
EUR
|
552 426
EUR
|
2 495
EUR
|
557 578
EUR
|
12 258
EUR
|
4 050
EUR
|
563 129
EUR
|
| Liabilities [abstract] | |||||||||||||||||||||
| Non-current liabilities [abstract] | |||||||||||||||||||||
| Non-current provisions [abstract] | |||||||||||||||||||||
| Non-current provisions for employee benefits | — | — | — | — | — | — |
32 352
EUR
|
— | — |
32 700
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
| Non-current liabilities | — | — | — | — | — | — |
112 553
EUR
|
— | — |
122 762
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
| Current liabilities [abstract] | |||||||||||||||||||||
| Current provisions [abstract] | |||||||||||||||||||||
| Current provisions | — | — | — | — | — | — |
16 218
EUR
|
— | — |
10 480
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
| Current tax liabilities, current | — | — | — | — | — | — |
447,000
EUR
|
— | — |
2 316
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
| Current liabilities | — | — | — | — | — | — |
453 364
EUR
|
— | — |
510 066
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
| Equity and liabilities | — | — | — | — | — | — |
1 178 081
EUR
|
— | — |
1 255 128
EUR
|
— | — | — | — | — | — | — | — | — | — | — |