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SUBSIDIARIES AND NON-CONTROLLING INTEREST - Principal Subsidiaries (Details)		12 Months Ended
	Sep. 15, 2020	Dec. 31, 2020
Disclosure of subsidiaries [line items]
Proportion of ownership interest in subsidiary	57.00%
Marigold Mining Company
Disclosure of subsidiaries [line items]
Proportion of ownership interest in subsidiary		100.00%
Anagold
Disclosure of subsidiaries [line items]
Proportion of ownership interest in subsidiary		80.00%
SGO Mining Inc.
Disclosure of subsidiaries [line items]
Proportion of ownership interest in subsidiary		100.00%
Mina Pirquitas Sociedad Anonima
Disclosure of subsidiaries [line items]
Proportion of ownership interest in subsidiary		100.00%
SSR Durango, S.A. de C.V.
Disclosure of subsidiaries [line items]
Proportion of ownership interest in subsidiary		100.00%
Intertrade Metals Limited Partnership
Disclosure of subsidiaries [line items]
Proportion of ownership interest in subsidiary		100.00%

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- Definition

Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table.

+ References

No definition available.

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- Definition

The proportion of ownership interest in a subsidiary attributable to the entity. [Refer: Subsidiaries [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 27
-IssueDate 2020-01-01
-Paragraph 17
-Subparagraph b
-Clause iii
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=27&code=ifrs-tx-2020-en-r&anchor=para_17_b_iii&doctype=Standard
-URIDate 2020-01-01

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 27
-IssueDate 2020-01-01
-Paragraph 16
-Subparagraph b
-Clause iii
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=27&code=ifrs-tx-2020-en-r&anchor=para_16_b_iii&doctype=Standard
-URIDate 2020-01-01

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 12
-IssueDate 2020-01-01
-Paragraph 19B
-Subparagraph c
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2020-en-r&anchor=para_19B_c&doctype=Standard
-URIDate 2020-01-01

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