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COMMITMENTS AND CONTINGENCIES - Reclamation Bonds and Surety Bonds (Details) - Surety Bonds $ in Millions, $ in Millions | 3 Months Ended
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Mar. 31, 2023 USD ($) | Mar. 31, 2023 CAD ($)
Reclamation Bonds |  |
Percentage of annual fees on surety bonds | 2.30% | 2.30%
Percentage of required deposit on value of surety bonds | 10.00% | 10.00%
Restricted cash | $ 4.2 |
Nevada |  |
Reclamation Bonds |  |
Surety bonding obligation | 27.8 | $ 15.6
Canada [Member] |  |
Reclamation Bonds |  |
Surety bonding obligation | $ 11.5 |

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- Definition 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. + References No definition available. + Details
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