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INVESTMENTS - Identical or Similar Investments (Details) - Galaxy Digital Holdings, LP - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023
Debt Securities, Available-for-Sale [Line Items] |  |
Carrying Value | $ 63,227 | $ 83,702
Impairment, Period to date | 6,990 | 37,868
Impairment, Cumulative | 59,608 | 64,588
Upward Adjustments, Period to date | 2,214 | 2,356
Upward Adjustments, Cumulative | $ 63,652 | $ 74,352

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