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Asset Retirement Obligations and Restricted Cash
 12 Months Ended
Dec. 31, 2024
Asset Retirement Obligation Disclosure [Abstract]  
Asset Retirement Obligations and Restricted Cash Asset Retirement Obligations and Restricted Cash
The asset retirement obligations continuity summary is as follows:
Amount
Balance, December 31, 2022$4,752 
Additions5,489 
Accretion1,099 
Settlement(291)
Change in estimates(221)
Balance, December 31, 2023$10,828 
Accretion1,065 
Settlement(399)
Change in estimates5,424 
Balance, December 31, 2024$16,918 
The Company expensed the change in estimate for the years ended December 31, 2024 and 2023 as a result of these being adjustments to the estimate for asset retirement obligations that were acquired as part of asset acquisitions.
As of December 31, 2024 and 2023, the undiscounted cash flows total $23,529 and $17,130, respectively.
As of December 31, 2024 and 2023, the Company deposited $7,751 and $7,680, respectively, for collateralization of its performance obligations with an unrelated third party also known as performance bonds. These funds are not available for the payment of general corporate obligations. The performance bonds are required for future restoration and reclamation obligations related to the Company’s operations. These funds are categorized as restricted cash on the Company’s consolidated balance sheet.