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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Schedule of significant unobservable inputs of level 3 financial assets and liabilities (Details) $ in Thousands | Mar. 31, 2025 USD ($) | Mar. 10, 2025 USD ($) | Dec. 31, 2024 USD ($)
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Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |
Loans receivable, fair value | $ 98,596 |  | $ 90,103
Total assets measured at fair value | 238,994 |  | 289,461
Contingent consideration, fair value | 4,593 |  | 4,538
Liability-classified warrants, fair value | 5,160 |  |
Embedded derivative, fair value | 14,593 |  |
Total liabilities measured at fair value | 26,486 |  | 10,213
Noncontrolling interest, fair value | 1,575 | $ 1,575 |
Market approach | Weighted Average |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |
Noncontrolling interest, measurement input |  | 0.25 |
Discounted cash flow | Weighted Average |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |
Noncontrolling interest, measurement input |  | 0.75 |
Significant unobservable inputs (Level 3) |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |
Loans receivable, fair value | 98,596 |  | 90,103
Total assets measured at fair value | 126,126 |  | 130,619
Contingent consideration, fair value | 4,593 |  | 4,538
Liability-classified warrants, fair value | 5,160 |  |
Embedded derivative, fair value | 14,593 |  |
Total liabilities measured at fair value | 24,346 |  | 4,538
Significant unobservable inputs (Level 3) | Market approach |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |
Equity securities, fair value | 22,656 |  | 34,654
Loans receivable, fair value | $ 5,909 |  | $ 3,953
Significant unobservable inputs (Level 3) | Market approach | Multiple of EBITDA |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |
Equity securities, measurement input | 5.5 |  | 6.3
Significant unobservable inputs (Level 3) | Market approach | Market price of related security |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |
Loans receivable at fair value, measurement input | 10.89 |  |
Significant unobservable inputs (Level 3) | Market approach | Minimum | Multiple of Sales |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |
Equity securities, measurement input | 1.9 |  | 2.1
Significant unobservable inputs (Level 3) | Market approach | Minimum | Market price of related security |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |
Equity securities, measurement input | 10.22 |  | 9.97
Loans receivable at fair value, measurement input |  |  | 9.60
Significant unobservable inputs (Level 3) | Market approach | Maximum | Multiple of Sales |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |
Equity securities, measurement input | 6.0 |  | 8.0
Significant unobservable inputs (Level 3) | Market approach | Maximum | Market price of related security |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |
Equity securities, measurement input | 11.72 |  | 11.10
Loans receivable at fair value, measurement input |  |  | 16.48
Significant unobservable inputs (Level 3) | Market approach | Weighted Average | Multiple of EBITDA |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |
Equity securities, measurement input | 5.5 |  | 6.3
Significant unobservable inputs (Level 3) | Market approach | Weighted Average | Multiple of Sales |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |
Equity securities, measurement input | 2.7 |  | 3.1
Significant unobservable inputs (Level 3) | Market approach | Weighted Average | Market price of related security |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |
Equity securities, measurement input | 11.21 |  | 10.76
Loans receivable at fair value, measurement input | 10.89 |  | 12.90
Significant unobservable inputs (Level 3) | Option pricing model |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |
Equity securities, fair value | $ 4,874 |  | $ 5,862
Significant unobservable inputs (Level 3) | Option pricing model | Minimum | Annualized volatility |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |
Equity securities, measurement input | 0.470 |  | 0.470
Significant unobservable inputs (Level 3) | Option pricing model | Maximum | Annualized volatility |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |
Equity securities, measurement input | 1.750 |  | 1.710
Significant unobservable inputs (Level 3) | Option pricing model | Weighted Average | Annualized volatility |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |
Equity securities, measurement input | 0.640 |  | 0.870
Significant unobservable inputs (Level 3) | Discounted cash flow |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |
Loans receivable, fair value | $ 77,687 |  | $ 86,150
Contingent consideration, fair value | 4,593 |  | $ 4,538
Embedded derivative, fair value | $ 14,593 |  |
Significant unobservable inputs (Level 3) | Discounted cash flow | Discount rate |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |
Embedded derivative, measurement input | 0.243 |  |
Significant unobservable inputs (Level 3) | Discounted cash flow | Minimum | Discount rate |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |
Loans receivable at fair value, measurement input | 0.077 |  | 0.073
Contingent consideration, measurement input | 0.050 |  | 0.050
Significant unobservable inputs (Level 3) | Discounted cash flow | Maximum | Discount rate |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |
Loans receivable at fair value, measurement input | 0.228 |  | 0.691
Contingent consideration, measurement input | 0.075 |  | 0.075
Significant unobservable inputs (Level 3) | Discounted cash flow | Weighted Average | Discount rate |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |
Loans receivable at fair value, measurement input | 0.198 |  | 0.197
Contingent consideration, measurement input | 0.051 |  | 0.051
Embedded derivative, measurement input | 0.243 |  |
Significant unobservable inputs (Level 3) | Liquidation approach |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |
Loans receivable, fair value | $ 15,000 |  |
Significant unobservable inputs (Level 3) | Liquidation approach | Cash recovery rate |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |
Loans receivable at fair value, measurement input | 0.161 |  |
Significant unobservable inputs (Level 3) | Liquidation approach | Weighted Average | Cash recovery rate |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |
Loans receivable at fair value, measurement input | 0.161 |  |
Significant unobservable inputs (Level 3) | Monte Carlo simulation and Black-Scholes option pricing model |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |
Liability-classified warrants, fair value | $ 5,160 |  |
Significant unobservable inputs (Level 3) | Monte Carlo simulation and Black-Scholes option pricing model | Annualized volatility |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |
Liability-classified warrants, measurement input | 0.750 |  |
Significant unobservable inputs (Level 3) | Monte Carlo simulation and Black-Scholes option pricing model | Discount for lack of marketability |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |
Liability-classified warrants, measurement input | 0.137 |  |
Significant unobservable inputs (Level 3) | Monte Carlo simulation and Black-Scholes option pricing model | Weighted Average | Annualized volatility |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |
Liability-classified warrants, measurement input | 0.750 |  |
Significant unobservable inputs (Level 3) | Monte Carlo simulation and Black-Scholes option pricing model | Weighted Average | Discount for lack of marketability |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |
Liability-classified warrants, measurement input | 0.137 |  |
Significant unobservable inputs (Level 3) | Monte Carlo simulation model | Annualized volatility |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |
Embedded derivative, measurement input | 1.050 |  |
Significant unobservable inputs (Level 3) | Monte Carlo simulation model | Expected term |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |
Embedded derivative liability, measurement input period | 2 years 10 months 24 days |  |
Significant unobservable inputs (Level 3) | Monte Carlo simulation model | Weighted Average | Annualized volatility |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |
Embedded derivative, measurement input | 1.050 |  |
Significant unobservable inputs (Level 3) | Monte Carlo simulation model | Weighted Average | Expected term |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |
Embedded derivative liability, measurement input period | 2 years 10 months 24 days |  |
Significant unobservable inputs (Level 3) | Discounted cash flow and market approach |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |
Noncontrolling interest, fair value |  | $ 1,575 |
Significant unobservable inputs (Level 3) | Discounted cash flow and market approach | Discount rate |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |
Noncontrolling interest, measurement input |  | 0.21 |
Significant unobservable inputs (Level 3) | Discounted cash flow and market approach | Minimum | Multiple of EBITDA |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |
Noncontrolling interest, measurement input |  | 5.75 |
Significant unobservable inputs (Level 3) | Discounted cash flow and market approach | Maximum | Multiple of EBITDA |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |
Noncontrolling interest, measurement input |  | 10.00 |
Significant unobservable inputs (Level 3) | Discounted cash flow and market approach | Weighted Average | Multiple of EBITDA |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |
Noncontrolling interest, measurement input |  | 7.3 |
Significant unobservable inputs (Level 3) | Discounted cash flow and market approach | Weighted Average | Discount rate |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |
Noncontrolling interest, measurement input |  | 0.21 |

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