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 |
273,500,000
USD
|
279,300,000
USD
|
— |
| Intangible assets and goodwill [abstract] | |||
| Intangible assets other than goodwill [abstract] | |||
| Intangible assets other than goodwill |
21,800,000
USD
|
18,200,000
USD
|
— |
| Investments in subsidiaries, joint ventures and associates reported in separate financial statements [abstract] | |||
| Investments in subsidiaries, joint ventures and associates reported in separate financial statements |
–
USD
|
–
USD
|
— |
| Miscellaneous non-current assets [abstract] | |||
| Other non-current assets |
57,800,000
USD
|
58,600,000
USD
|
— |
| Trade and other current receivables [abstract] | |||
| Trade and other current receivables |
47,900,000
USD
|
62,300,000
USD
|
— |
| Categories of non-current financial assets [abstract] | |||
| Non-current loans and receivables |
–
USD
|
–
USD
|
— |
| Classes of current inventories [abstract] | |||
| Current inventories |
9,300,000
USD
|
3,300,000
USD
|
— |
| Classes of current inventories, alternative [abstract] | |||
| Cash and cash equivalents [abstract] | |||
| Cash and cash equivalents |
16,500,000
USD
|
32,600,000
USD
|
45,300,000
USD
|
| Borrowings [abstract] | |||
| Non-current portion of non-current borrowings |
–
USD
|
11,000,000
USD
|
— |
| Current borrowings and current portion of non-current borrowings [abstract] | |||
| Current borrowings |
–
USD
|
29,500,000
USD
|
— |
| Non-current portion of non-current borrowings, by type [abstract] | |||
| Trade and other non-current payables [abstract] | |||
| Trade and other non-current payables |
200,000
USD
|
500,000
USD
|
— |
| Trade and other current payables [abstract] | |||
| Trade and other current payables |
14,300,000
USD
|
12,500,000
USD
|
— |
| Issued capital [abstract] | |||
| Issued capital |
33,100,000
USD
|
33,700,000
USD
|
— |
| Retained earnings [abstract] | |||
| Retained earnings |
58,400,000
USD
|
71,900,000
USD
|
— |
| Net assets (liabilities) [abstract] | |||
| Assets |
427,300,000
USD
|
457,000,000
USD
|
— |
| Liabilities |
136,500,000
USD
|
181,800,000
USD
|
— |
| Assets (liabilities) |
290,800,000
USD
|
275,200,000
USD
|
— |
| Net current assets (liabilities) [abstract] | |||
| Current assets |
74,000,000
USD
|
100,400,000
USD
|
— |
| Current liabilities |
17,700,000
USD
|
48,100,000
USD
|
— |
| Assets less current liabilities [abstract] |