Statement Of Cash Flows [Abstract]
| Concept |
As at 2021-12-31 |
2021-01-01 to 2021-12-31 |
As at 2021-12-31 |
2021-01-01 to 2021-12-31 |
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 2019-12-31 |
As at 2019-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|
| Statement of cash flows [abstract] | ||||||||||
| Cash flows from (used in) operating activities [abstract] | ||||||||||
| Income taxes paid (refund), classified as operating activities | — |
0
EUR
|
— |
691,000
EUR
|
— |
848,000
EUR
|
0
EUR
|
— | — | — |
| Cash flows from (used in) operating activities | — |
183,301
EUR
|
— |
218,869
EUR
|
— |
220,750
EUR
|
202,093
EUR
|
— | — | — |
| Cash flows from (used in) investing activities [abstract] | ||||||||||
| Cash flows from losing control of subsidiaries or other businesses, classified as investing activities | — |
0
EUR
|
— |
0
EUR
|
— |
5,000
EUR
|
5,000
EUR
|
— | — | — |
| Cash flows used in obtaining control of subsidiaries or other businesses, classified as investing activities | — |
1,500
EUR
|
— |
0
EUR
|
— |
0
EUR
|
0
EUR
|
— | — | — |
| Proceeds from sales of property, plant and equipment, classified as investing activities | — |
5,846
EUR
|
— |
5,846
EUR
|
— |
322,000
EUR
|
322,000
EUR
|
— | — | — |
| Purchase of property, plant and equipment, classified as investing activities | — |
82,148
EUR
|
— |
94,693
EUR
|
— |
97,475
EUR
|
89,013
EUR
|
— | — | — |
| Purchase of intangible assets, classified as investing activities | — |
100,673
EUR
|
— |
104,274
EUR
|
— |
62,798
EUR
|
63,464
EUR
|
— | — | — |
| Cash receipts from repayment of advances and loans made to other parties, classified as investing activities | — |
13,426
EUR
|
— |
79,000
EUR
|
— |
240,000
EUR
|
8,547
EUR
|
— | — | — |
| Dividends received, classified as investing activities | — |
11,128
EUR
|
— |
128,000
EUR
|
— |
6,000
EUR
|
840,000
EUR
|
— | — | — |
| Interest received, classified as investing activities | — |
2,155
EUR
|
— |
7,000
EUR
|
— |
1,000
EUR
|
2,420
EUR
|
— | — | — |
| Cash flows from (used in) investing activities | — |
152,966
EUR
|
— |
193,157
EUR
|
— |
154,710
EUR
|
136,803
EUR
|
— | — | — |
| Cash flows from (used in) financing activities [abstract] | ||||||||||
| Payments of lease liabilities, classified as financing activities | — |
11,655
EUR
|
— |
12,593
EUR
|
— |
9,819
EUR
|
9,113
EUR
|
— | — | — |
| Dividends paid, classified as financing activities | — |
29,275
EUR
|
— |
29,275
EUR
|
— |
22,769
EUR
|
22,769
EUR
|
— | — | — |
| Interest paid, classified as financing activities | — |
8,537
EUR
|
— |
8,481
EUR
|
— |
8,747
EUR
|
8,750
EUR
|
— | — | — |
| Other inflows (outflows) of cash, classified as financing activities | — |
0
EUR
|
— |
5,000
EUR
|
— |
0
EUR
|
0
EUR
|
— | — | — |
| Cash flows from (used in) financing activities | — |
28,708
EUR
|
— |
17,985
EUR
|
— |
71,136
EUR
|
64,401
EUR
|
— | — | — |
| Effect of exchange rate changes on cash and cash equivalents [abstract] | ||||||||||
| Effect of exchange rate changes on cash and cash equivalents | — |
41,000
EUR
|
— |
41,000
EUR
|
— |
44,000
EUR
|
44,000
EUR
|
— | — | — |
| Increase (decrease) in cash and cash equivalents after effect of exchange rate changes | — |
1,627
EUR
|
— |
7,727
EUR
|
— |
5,096
EUR
|
889,000
EUR
|
— | — | — |
| Cash and cash equivalents |
15,935
EUR
|
— |
3,754
EUR
|
— |
8,167
EUR
|
— | — |
2,086
EUR
|
1,153
EUR
|
13,219
EUR
|