Subclassifications Of Assets, Liabilities And Equities [Abstract]
| Concept |
As at 2020-12-31 |
As at 2019-12-31 |
As at 2018-12-31 |
|---|---|---|---|
| Subclassifications of assets, liabilities and equities [abstract] | |||
| Property, plant and equipment [abstract] | |||
| Land and buildings [abstract] | |||
| Land and buildings |
74,220,000
EUR
|
83,665,000
EUR
|
57,777,000
EUR
|
| Other property, plant and equipment |
49,254,000
EUR
|
51,804,000
EUR
|
51,003,000
EUR
|
| Intangible assets and goodwill [abstract] | |||
| Intangible assets other than goodwill [abstract] | |||
| Intangible assets other than goodwill |
28,952,000
EUR
|
44,469,000
EUR
|
47,397,000
EUR
|
| Goodwill |
105,612,000
EUR
|
105,612,000
EUR
|
105,612,000
EUR
|
| Miscellaneous non-current assets [abstract] | |||
| Other non-current assets |
5,870,000
EUR
|
4,018,000
EUR
|
9,732,000
EUR
|
| Trade and other current receivables [abstract] | |||
| Current trade receivables |
146,138,000
EUR
|
195,358,000
EUR
|
161,787,000
EUR
|
| Other current receivables |
17,789,000
EUR
|
25,669,000
EUR
|
19,567,000
EUR
|
| Classes of current inventories [abstract] | |||
| Current inventories |
175,390,000
EUR
|
168,983,000
EUR
|
135,111,000
EUR
|
| Classes of current inventories, alternative [abstract] | |||
| Cash and cash equivalents [abstract] | |||
| Cash and cash equivalents |
235,402,000
EUR
|
357,035,000
EUR
|
251,807,000
EUR
|
| Miscellaneous current assets [abstract] | |||
| Current investments |
3,175,000
EUR
|
24,748,000
EUR
|
112,795,000
EUR
|
| Borrowings [abstract] | |||
| Non-current portion of non-current borrowings |
35,854,000
EUR
|
40,225,000
EUR
|
29,882,000
EUR
|
| Current borrowings and current portion of non-current borrowings [abstract] | |||
| Current borrowings |
86,000
EUR
|
-
EUR
|
686,000
EUR
|
| Current portion of non-current borrowings |
9,187,000
EUR
|
12,469,000
EUR
|
7,500,000
EUR
|
| Non-current portion of non-current borrowings, by type [abstract] | |||
| Trade and other current payables [abstract] | |||
| Current trade payables |
70,299,000
EUR
|
128,914,000
EUR
|
105,148,000
EUR
|
| Current accruals and current deferred income including current contract liabilities [abstract] | |||
| Current deferred income including current contract liabilities [abstract] | |||
| Current contract liabilities [abstract] | |||
| Current advances received, representing current contract liabilities for performance obligations satisfied at point in time |
42,375,000
EUR
|
69,515,000
EUR
|
53,747,000
EUR
|
| Miscellaneous non-current liabilities [abstract] | |||
| Other non-current liabilities |
43,286,000
EUR
|
27,031,000
EUR
|
24,557,000
EUR
|
| Miscellaneous current liabilities [abstract] | |||
| Other current liabilities |
8,980,000
EUR
|
13,268,000
EUR
|
48,532,000
EUR
|
| Net assets (liabilities) [abstract] | |||
| Assets |
1,018,203,000
EUR
|
1,174,176,000
EUR
|
1,047,301,000
EUR
|
| Net current assets (liabilities) [abstract] | |||
| Current assets |
584,542,000
EUR
|
781,203,000
EUR
|
689,197,000
EUR
|
| Current liabilities |
197,054,000
EUR
|
316,266,000
EUR
|
320,412,000
EUR
|
| Assets less current liabilities [abstract] |