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 |
2 ,57 3.0
USD
|
2 , 4 2 7. 9
USD
|
2, 08 3.3
USD
|
| Intangible assets and goodwill [abstract] | |||
| Intangible assets other than goodwill [abstract] | |||
| Intangible assets other than goodwill |
1 4 7. 0
USD
|
1 51 .6
USD
|
16 0.4
USD
|
| Trade and other non-current receivables [abstract] | |||
| Trade and other non-current receivables |
–
USD
|
3 .7
USD
|
800,000
USD
|
| Miscellaneous non-current assets [abstract] | |||
| Non-current restricted cash and cash equivalents |
61 .5
USD
|
213. 9
USD
|
2 03 .7
USD
|
| Non-current derivative financial assets |
4,800,000
USD
|
14 .0
USD
|
3 3.7
USD
|
| Trade and other current receivables [abstract] | |||
| Trade and other current receivables |
3 9.0
USD
|
88 .7
USD
|
128 .6
USD
|
| Classes of current inventories [abstract] | |||
| Current inventories |
55. 8
USD
|
5 4 .7
USD
|
55,900,000
USD
|
| Classes of current inventories, alternative [abstract] | |||
| Cash and cash equivalents [abstract] | |||
| Cash and cash equivalents |
250,600,000
USD
|
166 .7
USD
|
268,400,000
USD
|
| Miscellaneous current assets [abstract] | |||
| Current restricted cash and cash equivalents |
1 5 7. 3
USD
|
0 .1
USD
|
0 .1
USD
|
| Current derivative financial assets |
9. 5
USD
|
7 1.7
USD
|
130,900,000
USD
|
| Classes of other provisions [abstract] | |||
| Provision for decommissioning, restoration and rehabilitation costs [abstract] | |||
| Non-current provision for decommissioning, restoration and rehabilitation costs |
1, 110.6
USD
|
1 ,0 33 .7
USD
|
946. 1
USD
|
| Borrowings, by type [abstract] | |||
| Loans received | — | — | — |
| Secured bank loans received |
834,300,000
USD
|
695 .8
USD
|
76 4. 0
USD
|
| Bonds issued |
303 .5
USD
|
169,100,000
USD
|
16 6.9
USD
|
| Trade and other current payables [abstract] | |||
| Trade and other current payables |
9 9.4
USD
|
125 .3
USD
|
14 0.6
USD
|
| Miscellaneous non-current liabilities [abstract] | |||
| Non-current derivative financial liabilities |
23,000,000
USD
|
3,200,000
USD
|
9 0.4
USD
|
| Other non-current liabilities |
1 .1
USD
|
1 .1
USD
|
700,000
USD
|
| Miscellaneous current liabilities [abstract] | |||
| Current net defined benefit liability |
11 .4
USD
|
15 .4
USD
|
9,800,000
USD
|
| Current derivative financial liabilities |
149 .5
USD
|
89,000,000
USD
|
125 .3
USD
|
| Issued capital [abstract] | |||
| Issued capital |
1 .7
USD
|
1 .7
USD
|
1,700,000
USD
|
| Net assets (liabilities) [abstract] | |||
| Assets |
3,46 1.8
USD
|
3 ,41 2 . 9
USD
|
3 , 30 5.7
USD
|
| Liabilities |
2 ,766 .1
USD
|
2,59 9.3
USD
|
2 , 6 41 . 5
USD
|
| Net current assets (liabilities) [abstract] | |||
| Current assets |
5 1 4.3
USD
|
381 .9
USD
|
583,900,000
USD
|
| Current liabilities |
493 .5
USD
|
696,400,000
USD
|
673 .4
USD
|
| Assets less current liabilities [abstract] |