Subclassifications Of Assets, Liabilities And Equities [Abstract]
| Concept |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2021-12-31 |
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 |
133,600,000
EUR
|
— |
140,700,000
EUR
|
— | — |
| Intangible assets and goodwill [abstract] | |||||
| Intangible assets and goodwill |
78,700,000
EUR
|
— |
90,000,000
EUR
|
— | — |
| Miscellaneous non-current assets [abstract] | |||||
| Other non-current assets |
1,400,000
EUR
|
— |
3,500,000
EUR
|
— | — |
| Trade and other current receivables [abstract] | |||||
| Trade and other current receivables |
184,400,000
EUR
|
— |
250,000,000
EUR
|
— | — |
| Classes of current inventories [abstract] | |||||
| Current inventories |
96,500,000
EUR
|
— |
94,100,000
EUR
|
— | — |
| Classes of current inventories, alternative [abstract] | |||||
| Cash and cash equivalents [abstract] | |||||
| Cash and cash equivalents |
212,900,000
EUR
|
212,900,000
EUR
|
51,300,000
EUR
|
58,300,000
EUR
|
67,400,000
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 |
0
EUR
|
— |
238,200,000
EUR
|
— | — |
| Miscellaneous current assets [abstract] | |||||
| Other current assets |
15,400,000
EUR
|
— |
19,100,000
EUR
|
— | — |
| Miscellaneous assets [abstract] | |||||
| Restricted cash and cash equivalents | — |
500,000
EUR
|
— |
500,000
EUR
|
— |
| Borrowings [abstract] | |||||
| Non-current portion of non-current borrowings |
197,900,000
EUR
|
— |
272,100,000
EUR
|
— | — |
| Current borrowings and current portion of non-current borrowings [abstract] | |||||
| Current borrowings |
0
EUR
|
— |
20,600,000
EUR
|
— | — |
| Non-current portion of non-current borrowings, by type [abstract] | |||||
| Trade and other current payables [abstract] | |||||
| Trade and other current payables |
197,300,000
EUR
|
— |
229,600,000
EUR
|
— | — |
| Miscellaneous non-current liabilities [abstract] | |||||
| Non-current net defined benefit liability |
12,500,000
EUR
|
— |
19,000,000
EUR
|
— | — |
| Other non-current liabilities |
8,000,000
EUR
|
— |
1,000,000
EUR
|
— | — |
| Issued capital [abstract] | |||||
| Issued capital |
100,300,000
EUR
|
— |
105,600,000
EUR
|
— | — |
| Retained earnings [abstract] | |||||
| Retained earnings |
80,600,000
EUR
|
— |
107,100,000
EUR
|
— | — |
| Net assets (liabilities) [abstract] | |||||
| Assets |
797,900,000
EUR
|
— |
984,800,000
EUR
|
— | — |
| Liabilities |
517,400,000
EUR
|
— |
719,300,000
EUR
|
— | — |
| Net current assets (liabilities) [abstract] | |||||
| Current assets |
509,200,000
EUR
|
— |
652,700,000
EUR
|
— | — |
| Current liabilities |
214,400,000
EUR
|
— |
333,600,000
EUR
|
— | — |
| Assets less current liabilities [abstract] |