Financial Instruments - Movement in financial assets included in Level 3 of fair value hierarchy (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
IFRS Statement [Line Items]
Beginning balance	$ 463,195
Ending balance	584,574	$ 463,195
Level 3 [Member]
IFRS Statement [Line Items]
Beginning balance	14,209	10,559
Disposal-capital reduction of investment	(32)	(47)
Recognized in other comprehensive income	65	(35)
Recognized in profit or loss	466	3,732
Ending balance	14,708	14,209	$ 10,559
Financial assets at fair value through profit or loss, category [member]
IFRS Statement [Line Items]
Recognized in profit or loss	472	3,732	2,032
Financial assets at fair value through profit or loss, category [member] \| Level 3 [Member]
IFRS Statement [Line Items]
Beginning balance	13,500	9,768
Disposal-capital reduction of investment		0
Recognized in other comprehensive income		0
Recognized in profit or loss	466	3,732
Ending balance	13,966	13,500	9,768
Financial assets at fair value through other comprehensive income, category [member] \| Level 3 [Member]
IFRS Statement [Line Items]
Beginning balance	709	791
Disposal-capital reduction of investment	(32)	(47)
Recognized in other comprehensive income	65	(35)
Recognized in profit or loss		0
Ending balance	$ 742	$ 709	$ 791

- Definition

The amount of assets that are: (a) cash; (b) an equity instrument of another entity; (c) a contractual right: (i) to receive cash or another financial asset from another entity; or (ii) to exchange financial assets or financial liabilities with another entity under conditions that are potentially favourable to the entity; or (d) a contract that will, or may be, settled in the entity’s own equity instruments and is: (i) a non-derivative for which the entity is, or may be, obliged to receive a variable number of the entity’s own equity instruments; or (ii) a derivative that will, or may be, settled other than by the exchange of a fixed amount of cash or another financial asset for a fixed number of the entity’s own equity instruments. For this purpose the entity’s own equity instruments do not include puttable financial instruments classified as equity instruments in accordance with paragraphs 16A-16B of IAS 32, instruments that impose on the entity an obligation to deliver to another party a pro rata share of the net assets of the entity only on liquidation and are classified as equity instruments in accordance with paragraphs 16C-16D of IAS 32, or instruments that are contracts for the future receipt or delivery of the entity’s own equity instruments. [Refer: Financial instruments, class [member]; Financial liabilities]

+ References + Details