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Taxation - Disclosure of income taxes recognized in comprehensive income (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Taxation [Abstract] |  |  |
Income/(loss) for the year | $ (37,065) | $ (62,709) | $ 4,568
Income tax expense/(benefit) | (55,719) | 3,756 | 14,401
Income/(loss) before taxes | $ (92,783) | $ (58,953) | $ 18,969

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