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] | |||
| Vehicles [abstract] | |||
| Ships |
356,500,000
USD
|
383,700,000
USD
|
— |
| Property, plant and equipment |
4,300,000
USD
|
1,800,000
USD
|
— |
| Trade and other current receivables [abstract] | |||
| Current trade receivables |
21,600,000
USD
|
14,600,000
USD
|
— |
| Classes of current inventories [abstract] | |||
| Current inventories |
5,000,000
USD
|
5,000,000
USD
|
— |
| Classes of current inventories, alternative [abstract] | |||
| Cash and cash equivalents [abstract] | |||
| Cash and cash equivalents |
46,800,000
USD
|
74,600,000
USD
|
91,600,000
USD
|
| Miscellaneous current assets [abstract] | |||
| Other current assets |
8,500,000
USD
|
13,000,000
USD
|
— |
| Borrowings [abstract] | |||
| Non-current portion of non-current borrowings |
67,700,000
USD
|
415,500,000
USD
|
— |
| Current borrowings and current portion of non-current borrowings [abstract] | |||
| Current borrowings and current portion of non-current borrowings |
348,200,000
USD
|
4,000,000
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 |
1,600,000
USD
|
4,100,000
USD
|
— |
| Miscellaneous non-current liabilities [abstract] | |||
| Other non-current liabilities |
1,600,000
USD
|
1,800,000
USD
|
— |
| Miscellaneous current liabilities [abstract] | |||
| Other current liabilities |
29,000,000
USD
|
23,400,000
USD
|
— |
| Issued capital [abstract] | |||
| Issued capital |
24,800,000
USD
|
24,800,000
USD
|
— |
| Net assets (liabilities) [abstract] | |||
| Assets |
442,700,000
USD
|
492,700,000
USD
|
— |
| Net current assets (liabilities) [abstract] | |||
| Current assets |
81,900,000
USD
|
107,200,000
USD
|
— |
| Current liabilities |
386,600,000
USD
|
41,600,000
USD
|
— |
| Assets less current liabilities [abstract] |