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SHAREHOLDERS' EQUITY - Flow-Through Shares Issuance (Details) - USD ($) $ / shares in Units, $ in Millions			3 Months Ended	12 Months Ended
	Mar. 10, 2025	Jun. 14, 2024	Mar. 31, 2025	Dec. 31, 2024
Goliath Resources Limited \| Private placement
Number of units company acquired	5,181,347
Number of common shares	1
Share purchase warrant	0.5
Shares issued for acquisition of mineral property interests (in shares)	868,056
Flow Through Common Shares
Shares issued		1,533,000
Gross proceeds		$ 21.8
Issuance costs		1.5
Net proceeds		20.4
Net proceeds allocated to the sale of tax benefits		6.0
Proceeds from issuance of common stock		$ 14.4
Flow Through Common Shares \| Canadian Exploration Expenditures
Shares issued		643,000
Share price		$ 15.45
Exploration expenditures			$ 2.7	$ 0.5
Flow Through Common Shares \| Canadian Development Expenses
Shares issued		890,000
Share price		$ 13.4
Exploration expenditures			$ 4.1	$ 0.8