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Capital Management - Summary of Breakdown of Reserves and Movements in Reserves (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Disclosure Of Capital Reserve [Line Items]
Reserves, Beginning balance	$ 119	$ 14	$ (13)
Movement of other reserves	(149)	105	27
Reserves, Ending balance	$ (30)	$ 119	$ 14