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ASSET RETIREMENT AND ENVIRONMENTAL OBLIGATIONS - Additional Information (Details) - USD ($)
$ in Thousands
9 Months Ended 12 Months Ended
Sep. 30, 2022
Dec. 31, 2022
Dec. 31, 2021
Unusual Risk or Uncertainty [Line Items]      
Revision of estimate $ 13,100 $ 13,114 $ 9,779
Decrease in property, plant and equipment   10,400 8,700
Decrease in depreciation expense   2,700 1,100
Asset retirement obligation, current   200 100
Estimated undiscounted cash flows, to satisfy obligation   $ 50,400 167,300
Remediation term   25 years  
Discount rate   2.93%  
Environmental obligations, undiscounted cost   $ 27,175 27,700
Environmental obligations, current   $ 500 $ 500
Environmental Loss Contingency, Current, Statement of Financial Position [Extensible Enumeration]   Other current liabilities Other current liabilities
Closure and reclamation obligations, financial assurances   $ 43,500 $ 39,000
Machinery and equipment      
Unusual Risk or Uncertainty [Line Items]      
Decrease in property, plant and equipment     $ 2,400
Minimum      
Unusual Risk or Uncertainty [Line Items]      
Asset retirement obligations, credit-adjusted risk free rate   6.50%  
Maximum      
Unusual Risk or Uncertainty [Line Items]      
Asset retirement obligations, credit-adjusted risk free rate   12.00%