Significant accounting policies (Details)	12 Months Ended
Dec. 31, 2022
Statement [Line Items]
Beneficial interest	100.00%
Fury Gold USA Limited
Statement [Line Items]
Beneficial interest	100.00%
Place of incorporations, Subsidiary	Delaware, U.S.A.
Functional currency	USD
Eastmain Resources Inc.
Statement [Line Items]
Beneficial interest	100.00%
Place of incorporations, Subsidiary	CAD
Functional currency	ON, Canada
Eastmain Mines Inc.
Statement [Line Items]
Beneficial interest	100.00%
Place of incorporations, Subsidiary	Canada
Functional currency	CAD
Standby Letter of Credit
Statement [Line Items]
Beneficial interest	100.00%
Place of incorporations, Subsidiary	BC, Canada
Functional currency	CAD

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

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 27
-IssueDate 2021-01-01
-Paragraph 17
-Subparagraph b
-Clause iii
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-URIDate 2021-03-24

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 27
-IssueDate 2021-01-01
-Paragraph 16
-Subparagraph b
-Clause iii
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=27&code=ifrs-tx-2021-en-r&anchor=para_16_b_iii&doctype=Standard
-URIDate 2021-03-24

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 12
-IssueDate 2021-01-01
-Paragraph 19B
-Subparagraph c
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2021-en-r&anchor=para_19B_c&doctype=Standard
-URIDate 2021-03-24

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Namespace Prefix:	ifrs-full_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration