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Material Accounting Policy Information (Details)
12 Months Ended
Dec. 31, 2023
Disclosure Of Material Accounting Policy Information [Line Items]  
Proportion of ownership interest in subsidiary 100.00%
Eastmain Mine [Member]  
Disclosure Of Material Accounting Policy Information [Line Items]  
Place Of Incorporations, Subsidiary Canada
Functional currency CAD
Eastmain Resources Inc. [Member]  
Disclosure Of Material Accounting Policy Information [Line Items]  
Place Of Incorporations, Subsidiary ON, Canada
Functional currency CAD
Fury Gold USA Limited [Member]  
Disclosure Of Material Accounting Policy Information [Line Items]  
Place Of Incorporations, Subsidiary Delaware, U.S.A.
Functional currency USD
North Country Gold Corp [Member]  
Disclosure Of Material Accounting Policy Information [Line Items]  
Place Of Incorporations, Subsidiary BC, Canada
Functional currency CAD