COMMITMENTS AND CONTINGENCIES - Reclamation obligations (Details) - Surety Bonds $ in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2025 USD ($)	Mar. 31, 2025 CAD ($)
Reclamation Bonds
Percentage of annual fees on surety bonds	2.40%	2.40%
Percentage of required deposit on value of surety bonds	7.30%	7.30%
Restricted cash	$ 3.9
Nevada
Reclamation Bonds
Surety bonding obligation	32.3
Canada
Reclamation Bonds
Surety bonding obligation	$ 13.2	$ 18.9