Statement Of Changes In Equity [Abstract]
| Concept |
2021-01-01 to 2021-12-31 |
As at 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
2021-01-01 to 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
2021-01-01 to 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2020-01-01 to 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 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
As at 2020-12-31 |
2020-01-01 to 2020-12-31 |
As at 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity [abstract] | |||||||||||||||||||||||||||||||||||
| Statement of changes in equity [line items] | |||||||||||||||||||||||||||||||||||
| Equity | — |
259,319,000
EUR
|
— | — |
303,271,000
EUR
|
31,000
EUR
|
— |
264,164,000
EUR
|
39,107,000
EUR
|
— |
175,000
EUR
|
5,051,000
EUR
|
— | — | — |
255,618,000
EUR
|
50,527,000
EUR
|
1,066,000
EUR
|
256,375,000
EUR
|
5,051,000
EUR
|
— | — |
5,360,000
EUR
|
— |
306,902,000
EUR
|
— | — | — |
242,671,000
EUR
|
49,096,000
EUR
|
273,000
EUR
|
291,767,000
EUR
|
236,704,000
EUR
|
643,000
EUR
|
5,051,000
EUR
|
| Changes in equity [abstract] | |||||||||||||||||||||||||||||||||||
| Comprehensive income [abstract] | |||||||||||||||||||||||||||||||||||
| Other comprehensive income |
3,144,000
EUR
|
— |
1,097,000
EUR
|
4,088,000
EUR
|
— | — |
5,185,000
EUR
|
— | — |
-
EUR
|
— | — |
7,232,000
EUR
|
-
EUR
|
9,477,000
EUR
|
— | — | — | — | — |
-
EUR
|
423,000
EUR
|
— |
-
EUR
|
— |
5,633,000
EUR
|
4,267,000
EUR
|
5,210,000
EUR
|
— | — | — | — | — | — | — |
| Comprehensive income |
19,247,000
EUR
|
— |
1,097,000
EUR
|
42,559,000
EUR
|
— | — |
5,185,000
EUR
|
— | — |
-
EUR
|
— | — |
61,806,000
EUR
|
38,471,000
EUR
|
31,161,000
EUR
|
— | — | — | — | — |
21,697,000
EUR
|
423,000
EUR
|
— |
-
EUR
|
— |
5,633,000
EUR
|
14,674,000
EUR
|
16,487,000
EUR
|
— | — | — | — | — | — | — |
| Increase (decrease) through changes in ownership interests in subsidiaries that do not result in loss of control, equity |
15,178,000
EUR
|
— |
-
EUR
|
34,256,000
EUR
|
— | — |
-
EUR
|
— | — |
-
EUR
|
— | — |
49,434,000
EUR
|
34,256,000
EUR
|
2,300,000
EUR
|
— | — | — | — | — |
681,000
EUR
|
-
EUR
|
— |
-
EUR
|
— |
-
EUR
|
1,619,000
EUR
|
681,000
EUR
|
— | — | — | — | — | — | — |
| Increase (decrease) through share-based payment transactions, equity |
-
EUR
|
— |
-
EUR
|
900,000
EUR
|
— | — |
-
EUR
|
— | — |
-
EUR
|
— | — |
900,000
EUR
|
900,000
EUR
|
900,000
EUR
|
— | — | — | — | — |
900,000
EUR
|
-
EUR
|
— |
-
EUR
|
— |
-
EUR
|
-
EUR
|
900,000
EUR
|
— | — | — | — | — | — | — |