COMMITMENTS AND CONTINGENCIES - Reclamation obligations (Details) - Surety Bonds $ in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2024 USD ($)	Mar. 31, 2024 CAD ($)
Reclamation Bonds
Percentage of annual fees on surety bonds	2.30%	2.30%
Percentage of required deposit on value of surety bonds	11.00%	11.00%
Restricted cash	$ 4.4
Nevada
Reclamation Bonds
Surety bonding obligation	30.1
Canada
Reclamation Bonds
Surety bonding obligation	$ 11.5	$ 15.6