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ASSET RETIREMENT OBLIGATIONS AND RESTRICTED CASH
 3 Months Ended
Mar. 31, 2025
Asset Retirement Obligation Disclosure [Abstract]  
Asset Retirement Obligations and Restricted Cash ASSET RETIREMENT OBLIGATIONS AND RESTRICTED CASH
Asset Retirement Obligations
The following table summarizes the Company’s asset retirement obligations:
Asset retirement obligations, December 31, 2024$44,117 
Accretion of liabilities1,073 
Settlements(7,649)
Asset retirement obligations, March 31, 2025$37,541 
The Company’s asset retirement obligations are subject to legal and regulatory requirements. Estimates of the costs of reclamation are reviewed periodically by the Company and the applicable regulatory authorities.
Restricted Cash
The Company has cash, cash equivalents and fixed income securities as collateral for various bonds posted in favor of the applicable state regulatory agencies in Arizona, Colorado, New Mexico, Utah and Wyoming, and the U.S. Bureau of Land Management and U.S. Forest Service, for estimated reclamation costs associated with the White Mesa Mill, Nichols Ranch and other mining properties. The restricted cash will be released when the Company has reclaimed a mineral property, sold a mineral property to a party having assumed the applicable bond requirements, or restructured the surety and collateral arrangements. See Note 14 – Commitments and Contingencies for more information.
The following table summarizes the Company’s restricted cash:
Restricted cash, December 31, 2024$20,002 
Additional collateral posted174 
Restricted cash, March 31, 2025$20,176