Statement Of Cash Flows [Abstract]
| Concept |
As at 2021-12-31 |
2021-01-01 to 2021-12-31 |
As at 2020-12-31 |
2020-01-01 to 2020-12-31 |
2019-01-01 to 2019-12-31 |
As at 2019-12-31 |
As at 2018-12-31 |
|---|---|---|---|---|---|---|---|
| Statement of cash flows [abstract] | |||||||
| Cash flows from (used in) operating activities [abstract] | |||||||
| Cash flows from (used in) operations | — |
109,150
EUR
|
— |
7,936
EUR
|
115,868
EUR
|
— | — |
| Interest paid, classified as operating activities | — |
1,823
EUR
|
— |
1,965
EUR
|
1,866
EUR
|
— | — |
| Interest received, classified as operating activities | — |
713,000
EUR
|
— |
1,845
EUR
|
7,648
EUR
|
— | — |
| Income taxes paid (refund), classified as operating activities | — |
8,386
EUR
|
— |
10,398
EUR
|
13,053
EUR
|
— | — |
| Cash flows from (used in) operating activities | — |
99,654
EUR
|
— |
18,454
EUR
|
108,597
EUR
|
— | — |
| Cash flows from (used in) investing activities [abstract] | |||||||
| Cash flows used in obtaining control of subsidiaries or other businesses, classified as investing activities | — |
-
EUR
|
— |
-
EUR
|
3,272
EUR
|
— | — |
| Other inflows (outflows) of cash, classified as investing activities | — |
51,969
EUR
|
— |
55,530
EUR
|
41,285
EUR
|
— | — |
| Cash flows from (used in) investing activities | — |
37,636
EUR
|
— |
45,958
EUR
|
32,982
EUR
|
— | — |
| Cash flows from (used in) financing activities [abstract] | |||||||
| Cash flows from (used in) financing activities | — |
35,500
EUR
|
— |
39,634
EUR
|
41,218
EUR
|
— | — |
| Increase (decrease) in cash and cash equivalents before effect of exchange rate changes | — |
101,790
EUR
|
— |
104,045
EUR
|
100,362
EUR
|
— | — |
| Effect of exchange rate changes on cash and cash equivalents [abstract] | |||||||
| Effect of exchange rate changes on cash and cash equivalents | — |
14,379
EUR
|
— |
17,588
EUR
|
4,866
EUR
|
— | — |
| Cash and cash equivalents |
351,571
EUR
|
— |
235,402
EUR
|
— | — |
357,035
EUR
|
251,807
EUR
|