Statement Of Cash Flows [Abstract]
| Concept |
As at 2020-12-31 |
2020-01-01 to 2020-12-31 |
As at 2019-12-31 |
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] | ||||||
| Dividends received, classified as operating activities | — |
606,000
EUR
|
— |
997,000
EUR
|
— | — |
| Interest paid, classified as operating activities | — |
14,807
EUR
|
— |
16,368
EUR
|
— | — |
| Interest received, classified as operating activities | — |
1,621
EUR
|
— |
2,958
EUR
|
— | — |
| Cash flows from (used in) operating activities | — |
312,819
EUR
|
— |
257,380
EUR
|
— | — |
| Cash flows from (used in) investing activities [abstract] | ||||||
| Other inflows (outflows) of cash, classified as investing activities | — |
76,000
EUR
|
— |
4,433
EUR
|
— | — |
| Cash flows from (used in) investing activities | — |
147,009
EUR
|
— |
165,735
EUR
|
— | — |
| Cash flows from (used in) financing activities [abstract] | ||||||
| Payments to acquire or redeem entity's shares | — |
4,569
EUR
|
— |
5,220
EUR
|
— | — |
| Payments of lease liabilities, classified as financing activities | — |
18,821
EUR
|
— |
15,021
EUR
|
— | — |
| Dividends paid, classified as financing activities | — |
26,744
EUR
|
— |
20,151
EUR
|
— | — |
| Cash flows from (used in) financing activities | — |
104,689
EUR
|
— |
20,623
EUR
|
— | — |
| Increase (decrease) in cash and cash equivalents before effect of exchange rate changes | — |
61,121
EUR
|
— |
71,022
EUR
|
— | — |
| Effect of exchange rate changes on cash and cash equivalents [abstract] | ||||||
| Effect of exchange rate changes on cash and cash equivalents | — |
3,715
EUR
|
— |
495,000
EUR
|
— | — |
| Cash and cash equivalents |
218,270
EUR
|
— |
160,864
EUR
|
— |
160,864
EUR
|
89,347
EUR
|