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VARIABLE INTEREST ENTITIES - Schedule of Net Gain / (Loss) Related to consolidated VIEs (Details) - Galaxy Digital Holdings, LP - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Variable Interest Entity [Line Items] |  |  |
Net gain / (loss) on consolidated VIEs | $ 258,791 | $ 97,827 | $ (464,918)
Net income / (loss) attributable to NCI on consolidated VIEs | 0 | 0 | (97,219)
Variable Interest Entity, Primary Beneficiary |  |  |
Variable Interest Entity [Line Items] |  |  |
Net gain / (loss) on consolidated VIEs | 0 | 0 | (166,113)
Net income / (loss) attributable to NCI on consolidated VIEs | $ 0 | $ 0 | $ (97,219)

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