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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Schedule of investments in the VIE (Details) - USD ($) $ in Thousands | Dec. 31, 2024 | Dec. 31, 2023
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Variable Interest Entity [Line Items] |  |
Securities and other investments owned, at fair value | $ 282,325 | $ 809,049
Other assets | 16,397 | 47,492
Variable Interest Entity, Not Primary Beneficiary |  |
Variable Interest Entity [Line Items] |  |
Securities and other investments owned, at fair value | 0 | 28,573
Loans receivable, at fair value | 28,193 | 250,801
Other assets | 3,359 | 11,418
Maximum exposure to loss | $ 31,552 | $ 290,792

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