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FAIR VALUE ACCOUNTING - Narrative (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2022 | Sep. 30, 2021 | Sep. 30, 2022 | Sep. 30, 2021 | Dec. 31, 2021
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |
Investments accounted for at fair value | $ 22,865 |  | $ 22,865 |  | $ 38,538
Change In Value Of Investments Accounted At Fair Value | $ 3,121 | $ 1,294 | $ (13,716) | $ 2,315 |
Virginia Energy Resources Inc. |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |
Percentage Of Fair Value Investment |  |  | 14.80% |  |
Consolidated Uranium Inc. |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |
Percentage Of Fair Value Investment |  |  | 17.60% |  |

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