Subclassifications Of Assets, Liabilities And Equities [Abstract]
| Concept |
As at 2023-12-31 |
As at 2022-12-31 |
As at 2021-12-31 |
|---|---|---|---|
| Subclassifications of assets, liabilities and equities [abstract] | |||
| Property, plant and equipment [abstract] | |||
| Property, plant and equipment |
423,600,000
USD
|
386,400,000
USD
|
— |
| Intangible assets and goodwill [abstract] | |||
| Intangible assets and goodwill |
650,600,000
USD
|
660,200,000
USD
|
— |
| Miscellaneous non-current assets [abstract] | |||
| Non-current net defined benefit asset |
42,100,000
USD
|
26,400,000
USD
|
— |
| Non-current derivative financial assets |
6,000,000
USD
|
1,300,000
USD
|
— |
| Trade and other current receivables [abstract] | |||
| Trade and other current receivables |
101,800,000
USD
|
94,900,000
USD
|
— |
| Classes of current inventories [abstract] | |||
| Current inventories |
163,300,000
USD
|
182,000,000
USD
|
— |
| Classes of current inventories, alternative [abstract] | |||
| Cash and cash equivalents [abstract] | |||
| Cash and cash equivalents |
65,800,000
USD
|
54,900,000
USD
|
84,600,000
USD
|
| 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 or as held for distribution to owners |
–
USD
|
160,900,000
USD
|
— |
| Miscellaneous current assets [abstract] | |||
| Current derivative financial assets |
7,400,000
USD
|
10,700,000
USD
|
— |
| Borrowings [abstract] | |||
| Non-current portion of non-current borrowings |
264,700,000
USD
|
414,700,000
USD
|
— |
| Current borrowings and current portion of non-current borrowings [abstract] | |||
| Current borrowings |
–
USD
|
2,700,000
USD
|
— |
| Non-current portion of non-current borrowings, by type [abstract] | |||
| Trade and other current payables [abstract] | |||
| Trade and other current payables |
117,900,000
USD
|
135,400,000
USD
|
— |
| Categories of non-current financial liabilities [abstract] | |||
| Non-current financial liabilities |
2,100,000
USD
|
2,800,000
USD
|
— |
| Categories of current financial liabilities [abstract] | |||
| Current financial liabilities |
–
USD
|
3,300,000
USD
|
— |
| Miscellaneous non-current liabilities [abstract] | |||
| Non-current net defined benefit liability |
9,000,000
USD
|
8,900,000
USD
|
— |
| Issued capital [abstract] | |||
| Issued capital |
52,500,000
USD
|
52,300,000
USD
|
— |
| Retained earnings [abstract] | |||
| Retained earnings |
485,500,000
USD
|
450,800,000
USD
|
— |
| Net assets (liabilities) [abstract] | |||
| Assets |
1,511,400,000
USD
|
1,627,000,000
USD
|
— |
| Liabilities |
664,100,000
USD
|
843,100,000
USD
|
— |
| Assets (liabilities) |
847,300,000
USD
|
783,900,000
USD
|
— |
| Net current assets (liabilities) [abstract] | |||
| Current liabilities |
158,900,000
USD
|
173,500,000
USD
|
— |
| Assets less current liabilities [abstract] |