Subclassifications Of Assets, Liabilities And Equities [Abstract]
| Concept |
As at 2024-12-31 |
As at 2023-12-31 |
As at 2022-12-31 |
|---|---|---|---|
| Subclassifications of assets, liabilities and equities [abstract] | |||
| Property, plant and equipment [abstract] | |||
| Property, plant and equipment |
117,300,000
EUR
|
115,800,000
EUR
|
— |
| Intangible assets and goodwill [abstract] | |||
| Intangible assets and goodwill |
84,600,000
EUR
|
78,300,000
EUR
|
— |
| Investments accounted for using equity method [abstract] | |||
| Investments accounted for using equity method |
700,000
EUR
|
2,100,000
EUR
|
— |
| Miscellaneous non-current assets [abstract] | |||
| Other non-current assets |
2,000,000
EUR
|
2,000,000
EUR
|
— |
| Trade and other current receivables [abstract] | |||
| Trade and other current receivables |
154,300,000
EUR
|
177,300,000
EUR
|
— |
| Classes of current inventories [abstract] | |||
| Current inventories |
80,500,000
EUR
|
101,500,000
EUR
|
— |
| Classes of current inventories, alternative [abstract] | |||
| Cash and cash equivalents [abstract] | |||
| Cash and cash equivalents |
84,300,000
EUR
|
164,700,000
EUR
|
212,900,000
EUR
|
| Miscellaneous current assets [abstract] | |||
| Other current assets |
14,400,000
EUR
|
13,400,000
EUR
|
— |
| Miscellaneous assets [abstract] | |||
| Restricted cash and cash equivalents |
100,000
EUR
|
500,000
EUR
|
— |
| Borrowings [abstract] | |||
| Non-current portion of non-current borrowings |
132,500,000
EUR
|
189,300,000
EUR
|
— |
| Non-current portion of non-current borrowings, by type [abstract] | |||
| Trade and other current payables [abstract] | |||
| Current trade payables |
84,800,000
EUR
|
116,600,000
EUR
|
— |
| Other current payables |
68,500,000
EUR
|
81,000,000
EUR
|
— |
| Miscellaneous non-current liabilities [abstract] | |||
| Non-current net defined benefit liability |
13,000,000
EUR
|
12,000,000
EUR
|
— |
| Other non-current liabilities |
700,000
EUR
|
3,700,000
EUR
|
— |
| Issued capital [abstract] | |||
| Issued capital |
80,600,000
EUR
|
84,600,000
EUR
|
— |
| Retained earnings [abstract] | |||
| Retained earnings |
158,300,000
EUR
|
140,100,000
EUR
|
— |
| Net assets (liabilities) [abstract] | |||
| Assets |
602,900,000
EUR
|
721,500,000
EUR
|
— |
| Liabilities |
399,900,000
EUR
|
503,400,000
EUR
|
— |
| Net current assets (liabilities) [abstract] | |||
| Current assets |
333,500,000
EUR
|
456,900,000
EUR
|
— |
| Current liabilities |
164,500,000
EUR
|
212,000,000
EUR
|
— |
| Assets less current liabilities [abstract] |