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Summary of Significant Accounting Policies (Details) - USD ($) | 3 Months Ended | 6 Months Ended |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | ---
Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022 | Mar. 31, 2023 | Dec. 31, 2022 | Mar. 31, 2022 | Dec. 31, 2021 | Oct. 02, 2014
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |
Inventory Write-down | $ 1,627,000 | $ 9,219,000 | $ 14,740,000 | $ 16,814,000 |  |  |  |  |
Rochester [Member] |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |
Inventory Write-down | 2,100,000 |  | 16,400,000 |  |  |  |  |  |
Rochester [Member] | Cost of Sales |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |
Inventory Write-down | 1,600,000 |  | 14,700,000 |  |  |  |  |  |
Palmarejo gold production royalty |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |
Aggregate deposit to be received |  |  |  |  |  |  |  |  | $ 22,000,000
Production to be sold, percent |  |  |  |  |  |  |  |  | 50.00%
Price per ounce under agreement |  |  |  |  |  |  |  |  | $ 800
Kensington |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |
Revenue liability | $ 45,012,000 | $ 25,012,000 | $ 45,012,000 | $ 25,012,000 | $ 15,127,000 | $ 25,016,000 | $ 25,155,000 | $ 15,016,000 |

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