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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Schedule of significant unobservable inputs of level 3 financial assets and liabilities (Details) $ in Thousands | Jun. 30, 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 at fair value | $ 48,980 |  | $ 90,103
Other assets | 15,966 |  | 15,950
Total assets measured at fair value | 200,075 |  | 289,461
Contingent consideration | 4,608 |  | 4,538
Total liabilities measured at fair value | 21,115 |  | 10,213
Noncontrolling interest | 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 at fair value | 48,980 |  | 90,103
Total assets measured at fair value | 77,735 |  | 130,619
Contingent consideration | 4,608 |  | 4,538
Total liabilities measured at fair value | 8,768 |  | 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 | 22,897 |  | 34,654
Loans receivable at fair value | 1,468 |  | $ 3,953
Other assets | $ 1,029 |  |
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 |  |  | 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 | 6.85 |  |
Significant unobservable inputs (Level 3) | Market approach | Minimum | Multiple of EBITDA |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |
Equity securities, measurement input | 4.5 |  |
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 | 0.8 |  | 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 | 10.57 |  | 9.97
Loans receivable at fair value, measurement input |  |  | 9.60
Other assets, measurement input | 147.00% |  |
Significant unobservable inputs (Level 3) | Market approach | Maximum | Multiple of EBITDA |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |
Equity securities, measurement input | 5.5 |  |
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 | 7.3 |  | 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 | 11.62 |  | 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 | 2.2 |  | 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 | 11.04 |  | 10.76
Loans receivable at fair value, measurement input | 6.85 |  | 12.90
Other assets, measurement input | 147.00% |  |
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 | $ 4,829 |  | $ 5,862
Significant unobservable inputs (Level 3) | Option pricing model | Annualized volatility |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |
Other assets, measurement input | 90.40% |  |
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 | 0.480 |  | 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 | 1.780 |  | 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 | 0.620 |  | 0.870
Other assets, measurement input | 90.40% |  |
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 at fair value | $ 36,512 |  | $ 86,150
Contingent consideration | $ 4,608 |  | $ 4,538
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 | 0.199 |  | 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 | 0.229 |  | 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 | 0.227 |  | 0.197
Contingent consideration, measurement input | 0.050 |  | 0.051
Significant unobservable inputs (Level 3) | Liquidation approach |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |
Loans receivable at fair value | $ 11,000 |  |
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 | 0.124 |  |
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 | 0.124 |  |
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 | $ 4,160 |  |
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] |  |  |
Derivative liability, measurement input | 0.775 |  |
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] |  |  |
Derivative liability, measurement input | 0.069 |  |
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] |  |  |
Derivative liability, measurement input | 0.775 |  |
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] |  |  |
Derivative liability, measurement input | 0.069 |  |
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 |  | $ 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 |  | 5,750 |
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 |  | 10,000.00 |
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 |  | 7,300 |
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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