Expenses - Schedule of Cost of Sales (Parenthetical) (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018
Expense By Nature [Abstract]
Impairment on Inventory	$ 9,545	$ 18,819

The amount of expense recognised related to the write-down of inventories to net realisable value. [Refer: Inventories]

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