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 |
662 770
EUR
|
707 591
EUR
|
— |
| Intangible assets and goodwill [abstract] | |||
| Intangible assets other than goodwill [abstract] | |||
| Intangible assets other than goodwill |
247 439
EUR
|
249 978
EUR
|
— |
| Goodwill |
89 474
EUR
|
104 411
EUR
|
— |
| Investments accounted for using equity method [abstract] | |||
| Investments accounted for using equity method |
5 760
EUR
|
5 485
EUR
|
— |
| Miscellaneous non-current assets [abstract] | |||
| Other non-current assets |
701,000
EUR
|
627,000
EUR
|
— |
| Trade and other current receivables [abstract] | |||
| Current trade receivables |
188 127
EUR
|
207 483
EUR
|
— |
| Current prepayments and current accrued income other than current contract assets [abstract] | |||
| Current prepayments [abstract] | |||
| Current prepaid expenses |
4 975
EUR
|
6 809
EUR
|
— |
| Current receivables from taxes other than income tax |
9 167
EUR
|
1 362
EUR
|
— |
| Current prepayments and current accrued income including current contract assets [abstract] | |||
| Classes of current inventories [abstract] | |||
| Current inventories |
24 024
EUR
|
26 685
EUR
|
— |
| Classes of current inventories, alternative [abstract] | |||
| Cash and cash equivalents [abstract] | |||
| Cash [abstract] | |||
| Cash |
23 957
EUR
|
32 030
EUR
|
18 290
EUR
|
| Cash equivalents [abstract] | |||
| Cash equivalents |
29 778
EUR
|
28 786
EUR
|
1 885
EUR
|
| Cash and cash equivalents |
53 735
EUR
|
60 816
EUR
|
20 175
EUR
|
| Miscellaneous current assets [abstract] | |||
| Current derivative financial assets |
243,000
EUR
|
301,000
EUR
|
— |
| Other current assets |
7 724
EUR
|
7 374
EUR
|
— |
| Classes of other provisions [abstract] | |||
| Restructuring provision [abstract] | |||
| Current restructuring provision |
1 127
EUR
|
1 239
EUR
|
— |
| Provision for decommissioning, restoration and rehabilitation costs [abstract] | |||
| Non-current provision for decommissioning, restoration and rehabilitation costs |
80 656
EUR
|
77 094
EUR
|
— |
| Current provision for decommissioning, restoration and rehabilitation costs |
9 065
EUR
|
5 498
EUR
|
— |
| Borrowings [abstract] | |||
| Non-current portion of non-current borrowings |
121 809
EUR
|
3 496
EUR
|
— |
| Current borrowings and current portion of non-current borrowings [abstract] | |||
| Current borrowings and current portion of non-current borrowings |
1 461
EUR
|
202 141
EUR
|
— |
| Non-current portion of non-current borrowings, by type [abstract] | |||
| Current borrowings and current portion of non-current borrowings, by type [abstract] | |||
| Trade and other current payables [abstract] | |||
| Current trade payables |
258 822
EUR
|
296 525
EUR
|
— |
| Current payables for purchase of non-current assets |
71 654
EUR
|
56 995
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 contract liabilities |
56 022
EUR
|
58 968
EUR
|
— |
| Miscellaneous non-current liabilities [abstract] | |||
| Other non-current liabilities |
2 580
EUR
|
2 344
EUR
|
— |
| Miscellaneous current liabilities [abstract] | |||
| Current derivative financial liabilities |
243,000
EUR
|
480,000
EUR
|
— |
| Other current liabilities |
7 082
EUR
|
3 806
EUR
|
— |
| Issued capital [abstract] | |||
| Issued capital |
131 721
EUR
|
131 721
EUR
|
— |
| Retained earnings [abstract] | |||
| Retained earnings |
479 263
EUR
|
470 551
EUR
|
— |
| Net assets (liabilities) [abstract] | |||
| Assets |
1 659 672
EUR
|
1 751 994
EUR
|
— |
| Net current assets (liabilities) [abstract] | |||
| Current assets |
350 347
EUR
|
374 703
EUR
|
— |
| Current liabilities |
570 590
EUR
|
787 330
EUR
|
— |
| Assets less current liabilities [abstract] |