Subclassifications Of Assets, Liabilities And Equities [Abstract]
| Concept |
As at 2021-12-31 |
As at 2020-12-31 |
As at 2019-12-31 |
|---|---|---|---|
| Subclassifications of assets, liabilities and equities [abstract] | |||
| Property, plant and equipment [abstract] | |||
| Property, plant and equipment |
1,000,000
USD
|
6,000,000
USD
|
— |
| Intangible assets and goodwill [abstract] | |||
| Intangible assets other than goodwill [abstract] | |||
| Intangible assets other than goodwill | — |
12,800,000
USD
|
— |
| Goodwill | — |
219,700,000
USD
|
— |
| Miscellaneous non-current assets [abstract] | |||
| Non-current finance lease receivables | — |
0
USD
|
— |
| Other non-current assets |
600,000
USD
|
300,000
USD
|
— |
| Trade and other current receivables [abstract] | |||
| Current trade receivables |
100,000
USD
|
89,500,000
USD
|
— |
| Other current receivables |
193,700,000
USD
|
6,400,000
USD
|
— |
| Cash and cash equivalents [abstract] | |||
| Cash and cash equivalents |
79,000,000
USD
|
41,900,000
USD
|
28,300,000
USD
|
| Miscellaneous current assets [abstract] | |||
| Current finance lease receivables | — |
900,000
USD
|
— |
| Borrowings [abstract] | |||
| Current borrowings and current portion of non-current borrowings [abstract] | |||
| Current borrowings and current portion of non-current borrowings | — |
35,000,000
USD
|
— |
| Current borrowings and current portion of non-current borrowings, by type [abstract] | |||
| Trade and other current payables [abstract] | |||
| Current trade payables |
200,000
USD
|
25,700,000
USD
|
— |
| Miscellaneous non-current liabilities [abstract] | |||
| Other non-current liabilities |
600,000
USD
|
1,600,000
USD
|
— |
| Miscellaneous current liabilities [abstract] | |||
| Other current liabilities |
2,400,000
USD
|
48,600,000
USD
|
— |
| Miscellaneous liabilities [abstract] | |||
| Investment contracts liabilities | — |
1,800,000
USD
|
— |
| Net assets (liabilities) [abstract] | |||
| Assets |
365,000,000
USD
|
425,300,000
USD
|
— |
| Liabilities |
13,700,000
USD
|
118,900,000
USD
|
— |
| Net current assets (liabilities) [abstract] | |||
| Current assets |
272,800,000
USD
|
138,700,000
USD
|
— |
| Current liabilities |
2,700,000
USD
|
116,100,000
USD
|
— |
| Assets less current liabilities [abstract] |