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 2020-01-01 |
As at 2020-01-01 |
As at 2020-01-01 |
As at 2020-01-01 |
As at 2020-01-01 |
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 2019-01-01 |
As at 2019-01-01 |
As at 2019-01-01 |
As at 2019-01-01 |
As at 2019-01-01 |
As at 2019-01-01 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of financial position [abstract] | |||||||||||||||||||||
| Assets [abstract] | |||||||||||||||||||||
| Property, plant and equipment | — | — | — |
47,650,000
EUR
|
— | — | — | — | — | — | — |
55,650,000
EUR
|
— | — | — | — | — | — | — | — | — |
| Goodwill | — | — | — |
61,367,000
EUR
|
— | — | — | — | — | — | — |
61,178,000
EUR
|
— | — | — | — | — | — | — | — | — |
| Deferred tax assets | — | — | — |
4,173,000
EUR
|
— | — | — | — | — | — | — |
5,357,000
EUR
|
— | — | — | — | — | — | — | — | — |
| Cash and cash equivalents | — | — | — |
53,051,000
EUR
|
— | — | — |
31,851,000
EUR
|
— | — | — |
31,851,000
EUR
|
— | — | — | — | — | — |
47,500,000
EUR
|
— | — |
| Assets | — | — | — |
470,842,000
EUR
|
— | — | — | — | — | — | — |
437,912,000
EUR
|
— | — | — | — | — | — | — | — | — |
| Equity and liabilities [abstract] | |||||||||||||||||||||
| Equity [abstract] | |||||||||||||||||||||
| Issued capital | — | — | — |
5,441,000
EUR
|
— | — | — | — | — | — | — |
5,441,000
EUR
|
— | — | — | — | — | — | — | — | — |
| Retained earnings | — | — | — |
237,409,000
EUR
|
— | — | — | — | — | — | — |
186,643,000
EUR
|
— | — | — | — | — | — | — | — | — |
| Equity |
237,409,000
EUR
|
5,441,000
EUR
|
4,725,000
EUR
|
278,250,000
EUR
|
40,125,000
EUR
|
5,441,000
EUR
|
186,643,000
EUR
|
230,020,000
EUR
|
1,983,000
EUR
|
39,919,000
EUR
|
1,983,000
EUR
|
230,020,000
EUR
|
186,643,000
EUR
|
5,441,000
EUR
|
39,919,000
EUR
|
5,441,000
EUR
|
9,963,000
EUR
|
121,130,000
EUR
|
169,059,000
EUR
|
35,934,000
EUR
|
3,409,000
EUR
|
| Liabilities [abstract] | |||||||||||||||||||||
| Deferred tax liabilities | — | — | — |
28,323,000
EUR
|
— | — | — | — | — | — | — |
25,931,000
EUR
|
— | — | — | — | — | — | — | — | — |
| Liabilities | — | — | — |
192,592,000
EUR
|
— | — | — | — | — | — | — |
207,892,000
EUR
|
— | — | — | — | — | — | — | — | — |
| Equity and liabilities | — | — | — |
470,842,000
EUR
|
— | — | — | — | — | — | — |
437,912,000
EUR
|
— | — | — | — | — | — | — | — | — |