Subclassifications Of Assets, Liabilities And Equities [Abstract]
| Concept |
As at 2021-12-31 |
As at 2020-12-31 |
As at 2019-12-31 |
|---|---|---|---|
| Subclassifications of assets, liabilities and equities [abstract] | |||
| Property, plant and equipment [abstract] | |||
| Property, plant and equipment |
265,764
EUR
|
249,862
EUR
|
276,789
EUR
|
| Intangible assets and goodwill [abstract] | |||
| Intangible assets other than goodwill [abstract] | |||
| Intangible assets other than goodwill |
8,212
EUR
|
5,120
EUR
|
4,776
EUR
|
| Goodwill |
0
EUR
|
0
EUR
|
6,537
EUR
|
| Non-current prepayments and non-current accrued income including non-current contract assets [abstract] | |||
| Non-current accrued income including non-current contract assets [abstract] | |||
| Non-current contract assets |
37,419
EUR
|
31,911
EUR
|
37,732
EUR
|
| Miscellaneous non-current assets [abstract] | |||
| Other non-current assets |
1,112
EUR
|
2,035
EUR
|
126,000
EUR
|
| Trade and other current receivables [abstract] | |||
| Current trade receivables |
42,644
EUR
|
55,020
EUR
|
53,413
EUR
|
| Other current receivables |
26,764
EUR
|
14,216
EUR
|
10,399
EUR
|
| Current prepayments and current accrued income including current contract assets [abstract] | |||
| Current accrued income including current contract assets [abstract] | |||
| Current contract assets |
65,164
EUR
|
58,901
EUR
|
88,042
EUR
|
| Classes of current inventories [abstract] | |||
| Current inventories |
42,615
EUR
|
38,570
EUR
|
40,875
EUR
|
| Classes of current inventories, alternative [abstract] | |||
| Cash and cash equivalents [abstract] | |||
| Cash and cash equivalents |
69,714
EUR
|
90,389
EUR
|
55,609
EUR
|
| Non-current assets or disposal groups classified as held for sale or as held for distribution to owners [abstract] | |||
| Non-current assets or disposal groups classified as held for sale or as held for distribution to owners |
658,000
EUR
|
13,360
EUR
|
9,980
EUR
|
| Classes of other provisions [abstract] | |||
| Other provisions [abstract] | |||
| Other non-current provisions |
0
EUR
|
0
EUR
|
1,753
EUR
|
| Borrowings [abstract] | |||
| Non-current portion of non-current borrowings |
157,352
EUR
|
160,342
EUR
|
194,145
EUR
|
| Current borrowings and current portion of non-current borrowings [abstract] | |||
| Current portion of non-current borrowings |
38,365
EUR
|
37,889
EUR
|
17,454
EUR
|
| Non-current portion of non-current borrowings, by type [abstract] | |||
| Trade and other current payables [abstract] | |||
| Current accruals and current deferred income including current contract liabilities [abstract] | |||
| Current deferred income including current contract liabilities [abstract] | |||
| Current contract liabilities [abstract] | |||
| Current contract liabilities |
5,395
EUR
|
5,365
EUR
|
2,889
EUR
|
| Trade and other current payables |
57,255
EUR
|
52,703
EUR
|
52,908
EUR
|
| Miscellaneous current liabilities [abstract] | |||
| Other current liabilities |
26,460
EUR
|
31,718
EUR
|
29,760
EUR
|
| Issued capital [abstract] | |||
| Issued capital |
22,330
EUR
|
22,330
EUR
|
22,330
EUR
|
| Retained earnings [abstract] | |||
| Retained earnings |
188,203
EUR
|
187,740
EUR
|
181,304
EUR
|
| Miscellaneous equity [abstract] | |||
| Capital reserve |
37,563
EUR
|
37,563
EUR
|
37,563
EUR
|
| Net assets (liabilities) [abstract] | |||
| Assets |
568,499
EUR
|
568,861
EUR
|
592,958
EUR
|
| Net current assets (liabilities) [abstract] | |||
| Current assets |
248,474
EUR
|
271,764
EUR
|
259,752
EUR
|
| Current liabilities |
143,143
EUR
|
144,974
EUR
|
122,227
EUR
|
| Assets less current liabilities [abstract] |