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 |
As at 2019-12-31 |
|---|---|---|---|---|---|
| Statement of cash flows [abstract] | |||||
| Cash flows from (used in) operating activities [abstract] | |||||
| Dividends received, classified as operating activities | — |
1,022,000
EUR
|
— |
606,000
EUR
|
— |
| Interest paid, classified as operating activities | — |
11,954,000
EUR
|
— |
14,807,000
EUR
|
— |
| Interest received, classified as operating activities | — |
1,855,000
EUR
|
— |
1,621,000
EUR
|
— |
| Cash flows from (used in) operating activities | — |
367,363,000
EUR
|
— |
312,819,000
EUR
|
— |
| Cash flows from (used in) investing activities [abstract] | |||||
| Other inflows (outflows) of cash, classified as investing activities | — |
13,961,000
EUR
|
— |
76,000
EUR
|
— |
| Cash flows from (used in) investing activities | — |
195,123,000
EUR
|
— |
147,009,000
EUR
|
— |
| Cash flows from (used in) financing activities [abstract] | |||||
| Payments to acquire or redeem entity's shares | — |
0
EUR
|
— |
4,569,000
EUR
|
— |
| Payments of lease liabilities, classified as financing activities | — |
18,431,000
EUR
|
— |
18,821,000
EUR
|
— |
| Dividends paid, classified as financing activities | — |
24,448,000
EUR
|
— |
26,744,000
EUR
|
— |
| Cash flows from (used in) financing activities | — |
27,621,000
EUR
|
— |
104,689,000
EUR
|
— |
| Increase (decrease) in cash and cash equivalents before effect of exchange rate changes | — |
144,619,000
EUR
|
— |
61,121,000
EUR
|
— |
| Effect of exchange rate changes on cash and cash equivalents [abstract] | |||||
| Effect of exchange rate changes on cash and cash equivalents | — |
10,620,000
EUR
|
— |
3,715,000
EUR
|
— |
| Cash and cash equivalents |
373,509,000
EUR
|
— |
218,270,000
EUR
|
— |
160,864,000
EUR
|