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FAIR VALUE OPTION - Narrative (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023
Galaxy Digital Holdings, LP |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |
Realized and unrealized losses for digital assets | $ 0.3 | $ 11.8

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