Subclassifications Of Assets, Liabilities And Equities [Abstract]
| Concept |
As at 2022-12-31 |
As at 2021-12-31 |
As at 2020-12-31 |
|---|---|---|---|
| Subclassifications of assets, liabilities and equities [abstract] | |||
| Property, plant and equipment [abstract] | |||
| Property, plant and equipment |
779,336,000
EUR
|
773,657,000
EUR
|
— |
| Intangible assets and goodwill [abstract] | |||
| Intangible assets and goodwill |
102,550,000
EUR
|
104,301,000
EUR
|
— |
| Miscellaneous non-current assets [abstract] | |||
| Other non-current assets |
1,060,000
EUR
|
1,028,000
EUR
|
— |
| Trade and other current receivables [abstract] | |||
| Current trade receivables |
402,730,000
EUR
|
467,764,000
EUR
|
— |
| Other current receivables |
27,728,000
EUR
|
29,564,000
EUR
|
— |
| Current prepayments and current accrued income including current contract assets [abstract] | |||
| Current accrued income including current contract assets [abstract] | |||
| Current contract assets |
946,000
EUR
|
1,214,000
EUR
|
— |
| Categories of non-current financial assets [abstract] | |||
| Non-current financial assets at fair value through other comprehensive income [abstract] | |||
| Non-current investments in equity instruments designated at fair value through other comprehensive income |
110,770,000
EUR
|
108,883,000
EUR
|
— |
| Classes of current inventories [abstract] | |||
| Current inventories |
553,332,000
EUR
|
455,707,000
EUR
|
— |
| Classes of current inventories, alternative [abstract] | |||
| Cash and cash equivalents [abstract] | |||
| Cash and cash equivalents |
518,934,000
EUR
|
159,838,000
EUR
|
313,568,000
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 |
41,000
EUR
|
41,000
EUR
|
— |
| Miscellaneous current assets [abstract] | |||
| Current investments |
52,437,000
EUR
|
155,448,000
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 |
6,048,000
EUR
|
6,875,000
EUR
|
— |
| Trade and other non-current payables |
0
EUR
|
10,000,000
EUR
|
— |
| Trade and other current payables [abstract] | |||
| Current trade payables |
140,837,000
EUR
|
130,011,000
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 contract liabilities |
157,710,000
EUR
|
124,730,000
EUR
|
— |
| Miscellaneous current liabilities [abstract] | |||
| Other current liabilities |
86,368,000
EUR
|
190,032,000
EUR
|
— |
| Issued capital [abstract] | |||
| Issued capital |
54,732,000
EUR
|
54,732,000
EUR
|
— |
| Retained earnings [abstract] | |||
| Retained earnings |
1,996,246,000
EUR
|
1,819,937,000
EUR
|
— |
| Net assets (liabilities) [abstract] | |||
| Assets |
2,687,500,000
EUR
|
2,536,988,000
EUR
|
— |
| Liabilities |
548,991,000
EUR
|
617,903,000
EUR
|
— |
| Net current assets (liabilities) [abstract] | |||
| Current assets |
1,562,475,000
EUR
|
1,461,936,000
EUR
|
— |
| Current liabilities |
416,861,000
EUR
|
455,229,000
EUR
|
— |
| Assets less current liabilities [abstract] |