Statement Of Cash Flows [Abstract]
| Concept |
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 | — |
309,602,000
EUR
|
284,177,000
EUR
|
— | — |
| Income taxes paid (refund), classified as operating activities | — |
10,176,000
EUR
|
9,817,000
EUR
|
— | — |
| Cash flows from (used in) operating activities | — |
299,426,000
EUR
|
274,360,000
EUR
|
— | — |
| Cash flows from (used in) investing activities [abstract] | |||||
| Cash flows used in obtaining control of subsidiaries or other businesses, classified as investing activities | — |
330,000
EUR
|
-
EUR
|
— | — |
| Purchase of property, plant and equipment, classified as investing activities | — |
76,787,000
EUR
|
100,477,000
EUR
|
— | — |
| Purchase of intangible assets, classified as investing activities | — |
7,509,000
EUR
|
8,836,000
EUR
|
— | — |
| Dividends received, classified as investing activities | — |
2,449,000
EUR
|
3,335,000
EUR
|
— | — |
| Interest received, classified as investing activities | — |
559,000
EUR
|
1,713,000
EUR
|
— | — |
| Cash flows from (used in) investing activities | — |
78,863,000
EUR
|
97,753,000
EUR
|
— | — |
| Cash flows from (used in) financing activities [abstract] | |||||
| Payments from changes in ownership interests in subsidiaries that do not result in loss of control | — |
21,795,000
EUR
|
20,376,000
EUR
|
— | — |
| Payments to acquire or redeem entity's shares | — |
8,816,000
EUR
|
6,855,000
EUR
|
— | — |
| Payments of lease liabilities, classified as financing activities | — |
15,967,000
EUR
|
15,936,000
EUR
|
— | — |
| Dividends paid, classified as financing activities | — |
17,615,000
EUR
|
13,690,000
EUR
|
— | — |
| Interest paid, classified as financing activities | — |
49,917,000
EUR
|
63,914,000
EUR
|
— | — |
| Cash flows from (used in) financing activities | — |
94,865,000
EUR
|
260,074,000
EUR
|
— | — |
| Effect of exchange rate changes on cash and cash equivalents [abstract] | |||||
| Effect of exchange rate changes on cash and cash equivalents | — |
9,648,000
EUR
|
2,855,000
EUR
|
— | — |
| Increase (decrease) in cash and cash equivalents after effect of exchange rate changes | — |
125,698,000
EUR
|
83,467,000
EUR
|
— | — |
| Cash and cash equivalents |
206,438,000
EUR
|
— | — |
90,388,000
EUR
|
171,000,000
EUR
|