Results for the year - Income tax - Components of income tax (Details) - USD ($) |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2017 |
Dec. 31, 2016 |
Dec. 31, 2015 |
|
| Consolidated statement of profit and loss | |||
| Current income tax (expense) benefit | $ (244,288,000) | $ (79,000) | $ 336,000 |
| Deferred income tax (expense) benefit | (23,107,000) | 21,282,000 | |
| Total income tax (expense) benefit reported in the statement of profit and loss | $ (267,395,000) | $ 21,203,000 | 336,000 |
| Current income tax benefit for participating in joint taxation group | 158,000 | ||
| Refundable tax credit | $ 178,000 | ||