Statement Of Cash Flows [Abstract]
| Concept |
2021-01-01 to 2021-12-31 |
2020-01-01 to 2020-12-31 |
2019-01-01 to 2019-12-31 |
|---|---|---|---|
| Statement of cash flows [abstract] | |||
| Cash flows from (used in) operating activities [abstract] | |||
| Cash flows from (used in) operations before changes in working capital |
249,405,000
USD
|
379,643,000
USD
|
153,381,000
USD
|
| Adjustments for decrease (increase) in trade and other receivables |
31,632,000
USD
|
21,961,000
USD
|
25,709,000
USD
|
| Adjustments for increase (decrease) in trade and other payables |
134,892,000
USD
|
50,537,000
USD
|
53,729,000
USD
|
| Adjustments for decrease (increase) in other current assets |
30,990,000
USD
|
16,189,000
USD
|
5,788,000
USD
|
| Adjustments for amortisation expense |
776,000
USD
|
246,000
USD
|
43,000
USD
|
| Adjustments for depreciation expense |
5,091,000
USD
|
3,671,000
USD
|
2,382,000
USD
|
| Cash flows from (used in) financing activities [abstract] | |||
| Proceeds from exercise of options |
33,433,000
USD
|
22,912,000
USD
|
5,345,000
USD
|
| Payments for share issue costs |
528,000
USD
|
613,000
USD
|
25,747,000
USD
|