Subclassifications Of Assets, Liabilities And Equities [Abstract]
| Concept |
As at 2020-12-31 |
As at 2020-01-01 |
As at 2019-12-31 |
As at 2019-01-01 |
|---|---|---|---|---|
| Subclassifications of assets, liabilities and equities [abstract] | ||||
| Property, plant and equipment [abstract] | ||||
| Property, plant and equipment |
2,068,000
EUR
|
— |
1,597,000
EUR
|
— |
| Intangible assets and goodwill [abstract] | ||||
| Intangible assets and goodwill |
29,669,000
EUR
|
— |
28,221,000
EUR
|
— |
| Investments accounted for using equity method [abstract] | ||||
| Investments accounted for using equity method |
29,088,000
EUR
|
— |
29,215,000
EUR
|
— |
| Miscellaneous non-current assets [abstract] | ||||
| Other non-current assets |
25,915,000
EUR
|
— |
17,090,000
EUR
|
— |
| Trade and other current receivables [abstract] | ||||
| Trade and other current receivables |
249,662,000
EUR
|
— |
251,436,000
EUR
|
— |
| Categories of non-current financial assets [abstract] | ||||
| Non-current financial assets |
40,890,000
EUR
|
— |
41,803,000
EUR
|
— |
| Classes of current inventories [abstract] | ||||
| Current inventories |
329,370,000
EUR
|
— |
395,683,000
EUR
|
— |
| Classes of current inventories, alternative [abstract] | ||||
| Cash and cash equivalents [abstract] | ||||
| Cash and cash equivalents |
1,069,000
EUR
|
571,479,000
EUR
|
571,479,000
EUR
|
243,865,000
EUR
|
| Miscellaneous current assets [abstract] | ||||
| Other current assets |
145,347,000
EUR
|
— |
117,429,000
EUR
|
— |
| Trade and other non-current payables [abstract] | ||||
| Non-current accruals and non-current deferred income including non-current contract liabilities [abstract] | ||||
| Non-current deferred income including non-current contract liabilities [abstract] | ||||
| Non-current deferred income other than non-current contract liabilities | — | — | — | — |
| Non-current government grants |
14,184,000
EUR
|
— |
15,378,000
EUR
|
— |
| 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 deferred income other than current contract liabilities | — | — | — | — |
| Current government grants |
19,878,000
EUR
|
— |
13,121,000
EUR
|
— |
| Trade and other current payables |
195,200,000
EUR
|
— |
243,589,000
EUR
|
— |
| Categories of non-current financial liabilities [abstract] | ||||
| Non-current financial liabilities |
1,446,000
EUR
|
— |
851,986,000
EUR
|
— |
| Categories of current financial liabilities [abstract] | ||||
| Current financial liabilities |
105,616,000
EUR
|
— |
129,606,000
EUR
|
— |
| Miscellaneous non-current liabilities [abstract] | ||||
| Other non-current liabilities |
26,861,000
EUR
|
— |
5,515,000
EUR
|
— |
| Miscellaneous current liabilities [abstract] | ||||
| Other current liabilities |
141,765,000
EUR
|
— |
118,764,000
EUR
|
— |
| Issued capital [abstract] | ||||
| Issued capital |
27,574,000
EUR
|
— |
27,574,000
EUR
|
— |
| Retained earnings [abstract] | ||||
| Retained earnings |
1,192,000
EUR
|
— |
1,322,000
EUR
|
— |
| Miscellaneous equity [abstract] | ||||
| Capital reserve |
133,919,000
EUR
|
— |
133,919,000
EUR
|
— |
| Net assets (liabilities) [abstract] | ||||
| Assets |
4,162,000
EUR
|
— |
3,121,000
EUR
|
— |
| Net current assets (liabilities) [abstract] | ||||
| Current assets |
1,801,000
EUR
|
— |
1,337,000
EUR
|
— |
| Current liabilities |
490,506,000
EUR
|
— |
540,191,000
EUR
|
— |
| Assets less current liabilities [abstract] |