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COMMITMENTS AND CONTINGENCIES - Reclamation obligations (Details) - Surety Bonds $ in Millions, $ in Millions	9 Months Ended
	Sep. 30, 2025 USD ($)	Sep. 30, 2025 CAD ($)
Reclamation Bonds
Percentage of annual fees on surety bonds	2.40%	2.40%
Percentage of required deposit on value of surety bonds	7.20%	7.20%
Restricted cash	$ 4.0
Nevada
Reclamation Bonds
Surety bonding obligation	33.9
Canada
Reclamation Bonds
Surety bonding obligation	$ 13.6	$ 18.9

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Represents the percentage of annual fees on the value of the surety bonds.

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Represents a surety bond obligation. It is a promise by a surety or guarantor to pay one party (the obligation) a certain amount if a second party (the principal) fails to meet some obligation, such as fulfilling the terms of a contract.

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Amount of cash restricted as to withdrawal or usage. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits.

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