Statement Of Changes In Equity [Abstract]
| Concept |
2020-01-01 to 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
2020-01-01 to 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 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 |
2019-01-01 to 2019-12-31 |
As at 2019-12-31 |
2019-01-01 to 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
2019-01-01 to 2019-12-31 |
As at 2019-12-31 |
2019-01-01 to 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 changes in equity [abstract] | |||||||||||||||||||||||||||||
| Statement of changes in equity [line items] | |||||||||||||||||||||||||||||
| 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
|
| Changes in equity [abstract] | |||||||||||||||||||||||||||||
| Comprehensive income [abstract] | |||||||||||||||||||||||||||||
| Profit (loss) |
88,258,000
EUR
|
— | — |
88,258,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — |
96,901,000
EUR
|
— | — |
96,901,000
EUR
|
— | — | — | — | — | — | — | — | — |
| Other comprehensive income |
2,696,000
EUR
|
— | — |
46,000
EUR
|
— | — |
2,742,000
EUR
|
— | — | — | — | — | — | — |
1,426,000
EUR
|
— |
1,150,000
EUR
|
— | — |
276,000
EUR
|
— | — | — | — | — | — | — | — | — |
| Comprehensive income |
85,562,000
EUR
|
— | — |
88,304,000
EUR
|
— | — |
2,742,000
EUR
|
— | — | — | — | — | — | — |
1,426,000
EUR
|
— |
95,751,000
EUR
|
— | — |
97,177,000
EUR
|
— | — | — | — | — | — | — | — | — |
| Dividends recognised as distributions to owners |
39,879,000
EUR
|
— | — |
40,000
EUR
|
— | — | — |
39,919,000
EUR
|
— | — | — | — | — | — | — | — |
53,000
EUR
|
— | — |
35,881,000
EUR
|
— |
35,934,000
EUR
|
— | — | — | — | — | — | — |
| Increase (decrease) through share-based payment transactions, equity |
10,997,000
EUR
|
— | — |
10,997,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — |
10,243,000
EUR
|
— | — |
10,243,000
EUR
|
— | — | — | — | — | — | — | — | — |