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 |
372,883,000
USD
|
252,621,000
USD
|
— |
| Intangible assets and goodwill [abstract] | |||
| Intangible assets other than goodwill [abstract] | |||
| Intangible exploration and evaluation assets |
–
USD
|
23,935,000
USD
|
— |
| Trade and other current receivables [abstract] | |||
| Current trade receivables |
9,204,000
USD
|
15,472,000
USD
|
— |
| Classes of current inventories [abstract] | |||
| Current inventories |
30,637,000
USD
|
29,852,000
USD
|
— |
| Classes of current inventories, alternative [abstract] | |||
| Cash and cash equivalents [abstract] | |||
| Cash and cash equivalents |
150,419,000
USD
|
161,711,000
USD
|
233,584,000
USD
|
| Miscellaneous assets [abstract] | |||
| Restricted cash and cash equivalents |
25,924,000
USD
|
25,215,000
USD
|
— |
| Classes of other provisions [abstract] | |||
| Provision for decommissioning, restoration and rehabilitation costs [abstract] | |||
| Provision for decommissioning, restoration and rehabilitation costs |
27,344,000
USD
|
22,147,000
USD
|
— |
| Borrowings [abstract] | |||
| Non-current portion of non-current borrowings |
571,194,000
USD
|
471,572,000
USD
|
— |
| Current borrowings and current portion of non-current borrowings [abstract] | |||
| Current borrowings and current portion of non-current borrowings |
177,000
USD
|
175,000
USD
|
— |
| Non-current portion of non-current borrowings, by type [abstract] | |||
| Current borrowings and current portion of non-current borrowings, by type [abstract] | |||
| Trade and other current payables [abstract] | |||
| Current trade payables |
8,238,000
USD
|
10,632,000
USD
|
— |
| Trade and other payables [abstract] | |||
| Accruals and deferred income including contract liabilities [abstract] | |||
| Deferred income including contract liabilities [abstract] | |||
| Contract liabilities [abstract] | |||
| Advances received, representing contract liabilities for performance obligations satisfied at point in time |
1,569,000
USD
|
254,000
USD
|
— |
| Miscellaneous current liabilities [abstract] | |||
| Other current liabilities |
16,613,000
USD
|
30,510,000
USD
|
— |
| Issued capital [abstract] | |||
| Issued capital |
2,152,000
USD
|
2,152,000
USD
|
— |
| Net assets (liabilities) [abstract] | |||
| Assets |
605,998,000
USD
|
519,341,000
USD
|
— |
| Net current assets (liabilities) [abstract] | |||
| Current assets |
202,803,000
USD
|
216,452,000
USD
|
— |
| Current liabilities |
27,677,000
USD
|
43,147,000
USD
|
— |
| Assets less current liabilities [abstract] |