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SUPPLEMENTAL CASH FLOW INFORMATION - Non-cash Other Operating Activities (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Cash Flow Statement [Abstract]
Share-based payments	$ 2,082	$ 4,005
Loss or write-down on sale of mineral properties, plant and equipment	1,265	1,008
Loss on change in fair value of concentrate trade receivables	1,396	0
Other	(1,909)	6,528
Other non-cash items	$ 2,834	$ 11,541

X

- Definition

Adjustments for share-based payments to reconcile profit (loss) to net cash flow from (used in) operating activities. [Refer: Profit (loss)]

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The amount of impairment loss recognised in profit or loss for trade receivables. [Refer: Impairment loss recognised in profit or loss; Trade receivables]

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The amount recognised resulting from the write-down of property, plant and equipment to its recoverable amount or reversals of those write-downs. [Refer: Property, plant and equipment]

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Miscellaneous Other Adjustments For Non-Cash Items

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