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Goodwill - Summary of key assumptions used for assessing the recoverable amount of goodwill (Details) - Goodwill - Integra Gold Corporation - $ / oz	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Disclosure of reconciliation of changes in goodwill [line items]
Gold price ($/oz)		1,400
Discount rate	500.00%	500.00%
Bottom of range
Disclosure of reconciliation of changes in goodwill [line items]
Gold price ($/oz)	1,850
Top of range
Disclosure of reconciliation of changes in goodwill [line items]
Gold price ($/oz)	1,550

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The discount rate used in the current measurement of fair value less costs of disposal.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 36
-IssueDate 2020-01-01
-Paragraph 130
-Subparagraph f
-Clause iii
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