Analysis Of Income And Expense [Abstract]
| Concept |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Analysis of income and expense [abstract] | ||||||||||||||||||||
| Revenue [abstract] | ||||||||||||||||||||
| Interest income | — | — | — | — | — | — | — | — |
1,537,000
USD
|
— |
1,958,000
USD
|
— | — | — | — | — | — | — | — | — |
| Revenue | — | — | — | — | — | — | — | — |
148,229,000
USD
|
— |
285,154,000
USD
|
— | — | — | — | — | — | — | — | — |
| Material income and expense [abstract] | ||||||||||||||||||||
| Gains (losses) on disposals of non-current assets [abstract] | ||||||||||||||||||||
| Gains on disposals of non-current assets | — | — | — | — | — | — | — | — |
52,000
USD
|
— |
95,000
USD
|
— | — | — | — | — | — | — | — | — |
| Losses on disposals of non-current assets | — | — | — | — | — | — | — | — |
100,000
USD
|
— |
4,000
USD
|
— | — | — | — | — | — | — | — | — |
| Finance income (cost) | — | — | — | — | — | — | — | — |
10,577,000
USD
|
— |
28,355,000
USD
|
— | — | — | — | — | — | — | — | — |
| Other finance income | — | — | — | — | — | — | — | — |
10,198,000
USD
|
— |
1,508,000
USD
|
— | — | — | — | — | — | — | — | — |
| Other finance cost | — | — | — | — | — | — | — | — |
6,785,000
USD
|
— |
14,254,000
USD
|
— | — | — | — | — | — | — | — | — |
| Interest expense | — | — | — | — | — | — | — | — |
15,526,000
USD
|
— |
17,568,000
USD
|
— | — | — | — | — | — | — | — | — |
| Selling, general and administrative expense [abstract] | ||||||||||||||||||||
| General and administrative expense | — | — | — | — | — | — | — | — |
24,536,000
USD
|
— |
29,806,000
USD
|
— | — | — | — | — | — | — | — | — |
| Revenue and other operating income | — | — | — | — | — | — | — | — |
149,272,000
USD
|
— |
286,783,000
USD
|
— | — | — | — | — | — | — | — | — |
| Expenses by nature [abstract] | ||||||||||||||||||||
| Classes of employee benefits expense [abstract] | ||||||||||||||||||||
| Employee benefits expense | — | — | — | — | — | — | — | — |
27,349,000
USD
|
— |
30,622,000
USD
|
— | — | — | — | — | — | — | — | — |
| Depreciation, amortisation and impairment loss (reversal of impairment loss) recognised in profit or loss [abstract] | ||||||||||||||||||||
| Depreciation and amortisation expense [abstract] | ||||||||||||||||||||
| Depreciation and amortisation expense | — | — | — | — | — | — | — | — |
31,364,000
USD
|
— |
37,270,000
USD
|
— | — | — | — | — | — | — | — | — |
| Impairment loss (reversal of impairment loss) recognised in profit or loss | — | — | — | — | — | — | — | — |
17,585,000
USD
|
— |
1,068,000
USD
|
— | — | — | — | — | — | — | — | — |
| Disclosure of attribution of expenses by nature to their function [text block] | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Disclosure of attribution of expenses by nature to their function [abstract] | ||||||||||||||||||||
| Disclosure of attribution of expenses by nature to their function [line items] | ||||||||||||||||||||
| Miscellaneous other comprehensive income [abstract] | ||||||||||||||||||||
| Other comprehensive income, net of tax, exchange differences on translation of foreign operations and hedges of net investments in foreign operations [abstract] | ||||||||||||||||||||
| Other comprehensive income, net of tax, exchange differences on translation of foreign operations |
20,000
USD
|
— | — |
1,501,000
USD
|
— | — |
1,501,000
USD
|
— |
1,521,000
USD
|
— |
5,125,000
USD
|
— | — | — | — | — |
5,104,000
USD
|
21,000
USD
|
— |
5,104,000
USD
|
| Share of profit (loss) of associates and joint ventures accounted for using equity method [abstract] | ||||||||||||||||||||
| Share of profit (loss) of associates and joint ventures accounted for using equity method | — | — | — | — | — | — | — | — |
21,769,000
USD
|
— |
17,830,000
USD
|
— | — | — | — | — | — | — | — | — |
| Share of other comprehensive income of associates and joint ventures accounted for using equity method, net of tax [abstract] | ||||||||||||||||||||
| Share of other comprehensive income of associates and joint ventures accounted for using equity method that will be reclassified to profit or loss, net of tax | — | — | — | — | — | — | — | — |
618,000
USD
|
— |
93,000
USD
|
— | — | — | — | — | — | — | — | — |
| Comprehensive income, continuing and discontinued operations [abstract] | ||||||||||||||||||||
| Comprehensive income |
15,000
USD
|
1,059,000
USD
|
0
USD
|
11,364,000
USD
|
0
USD
|
0
USD
|
1,942,000
USD
|
0
USD
|
11,378,000
USD
|
12,247,000
USD
|
96,974,000
USD
|
0
USD
|
91,731,000
USD
|
0
USD
|
320,000
USD
|
0
USD
|
5,517,000
USD
|
46,000
USD
|
0
USD
|
96,928,000
USD
|
| Comprehensive income attributable to owners of parent, continuing and discontinued operations [abstract] | ||||||||||||||||||||
| Comprehensive income, attributable to owners of parent | — | — | — | — | — | — | — | — |
11,364,000
USD
|
— |
96,928,000
USD
|
— | — | — | — | — | — | — | — | — |
| Comprehensive income attributable to non-controlling interests, continuing and discontinued operations [abstract] | ||||||||||||||||||||
| Comprehensive income, attributable to non-controlling interests | — | — | — | — | — | — | — | — |
15,000
USD
|
— |
46,000
USD
|
— | — | — | — | — | — | — | — | — |