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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 ($)
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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