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Supplemental Financial Information - Schedule of Other Liabilities (Details) - USD ($)
$ in Thousands
Jun. 30, 2023
Dec. 31, 2022
Other current liabilities:    
Current portion of operating lease obligations $ 2,375 $ 2,724
Operating lease, liability, current, statement of financial position [Extensible List] Total other current liabilities Total other current liabilities
Income and other taxes payable $ 1,069 $ 1,039
Current portion of mine reclamation liability 169 548
Other 2,762 2,334
Total other current liabilities 6,375 6,645
Other long-term liabilities:    
Operating lease obligations, long-term $ 9,006 $ 5,133
Operating lease, liability, noncurrent, statement of financial position [Extensible List] Total other long-term liabilities Total other long-term liabilities
Mine reclamation liabilities $ 5,323 $ 7,985
Other 806 733
Total other long-term liabilities $ 15,135 $ 13,851