Statement Of Cash Flows [Abstract]
| Concept |
As at 2020-12-31 |
2020-01-01 to 2020-12-31 |
As at 2020-01-01 |
2019-01-01 to 2019-12-31 |
As at 2019-12-31 |
As at 2019-01-01 |
|---|---|---|---|---|---|---|
| Statement of cash flows [abstract] | ||||||
| Cash flows from (used in) operating activities [abstract] | ||||||
| Cash flows from (used in) operations | — |
178,165,000
EUR
|
— |
141,229,000
EUR
|
— | — |
| Interest paid, classified as operating activities | — |
5,143,000
EUR
|
— |
4,947,000
EUR
|
— | — |
| Interest received, classified as operating activities | — |
79,000
EUR
|
— |
185,000
EUR
|
— | — |
| Cash flows from (used in) operating activities | — |
162,021,000
EUR
|
— |
120,108,000
EUR
|
— | — |
| Cash flows from (used in) investing activities [abstract] | ||||||
| Proceeds from sales of property, plant and equipment, classified as investing activities | — |
345,000
EUR
|
— |
159,000
EUR
|
— | — |
| Cash flows from (used in) investing activities | — |
115,438,000
EUR
|
— |
34,422,000
EUR
|
— | — |
| Cash flows from (used in) financing activities [abstract] | ||||||
| Payments to acquire or redeem entity's shares | — |
17,781,000
EUR
|
— |
44,678,000
EUR
|
— | — |
| Repayments of borrowings, classified as financing activities | — |
507,000
EUR
|
— |
419,000
EUR
|
— | — |
| Payments of lease liabilities, classified as financing activities | — |
3,700,000
EUR
|
— |
3,525,000
EUR
|
— | — |
| Dividends paid, classified as financing activities | — |
73,486,000
EUR
|
— |
122,419,000
EUR
|
— | — |
| Cash flows from (used in) financing activities | — |
51,848,000
EUR
|
— |
173,377,000
EUR
|
— | — |
| Increase (decrease) in cash and cash equivalents before effect of exchange rate changes | — |
98,431,000
EUR
|
— |
18,847,000
EUR
|
— | — |
| Effect of exchange rate changes on cash and cash equivalents [abstract] | ||||||
| Effect of exchange rate changes on cash and cash equivalents | — |
1,423,000
EUR
|
— |
1,706,000
EUR
|
— | — |
| Cash and cash equivalents |
375,406,000
EUR
|
— |
278,398,000
EUR
|
— |
278,398,000
EUR
|
295,539,000
EUR
|