SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Schedule of significant unobservable inputs of level 3 financial assets and liabilities (Details) $ in Thousands	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Loans receivable at fair value	$ 532,419	$ 701,652
Total assets measured at fair value	1,524,874	1,841,185
Mandatorily redeemable noncontrolling interests issued after November 5, 2003	5,835	4,648
Contingent consideration	27,985	31,046
Total liabilities measured at fair value	42,421	41,764
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	532,419	701,652
Total assets measured at fair value	1,268,057	1,070,117
Mandatorily redeemable noncontrolling interests issued after November 5, 2003	5,835	4,648
Contingent consideration	27,985	31,046
Total liabilities measured at fair value	$ 33,820	$ 35,694
Significant unobservable inputs (Level 3) \| Market interest rate
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Contingent earnout, measurement input	0.085	0.085
Significant unobservable inputs (Level 3) \| Weighted Average \| Market interest rate
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Contingent earnout, measurement input	0.085	0.085
Significant unobservable inputs (Level 3) \| Market approach
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair value	$ 662,158	$ 304,172
Loans receivable at fair value	19,897	7,153
Mandatorily redeemable noncontrolling interests issued after November 5, 2003	$ 5,835	$ 4,648
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]
Loans receivable, measurement input		4.5
Significant unobservable inputs (Level 3) \| Market approach \| Operating income multiple
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Mandatorily redeemable noncontrolling interesting, measurement input	6.0	6.0
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	0.7	1.5
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
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	0.04	10.01
Loans receivable, measurement input	19.87
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	13.5	10.5
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	3.8
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	92.51	18.88
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	7.1	6.0
Loans receivable, measurement input		4.5
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	1.0	3.0
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	12.27	16.91
Loans receivable, measurement input	19.87
Significant unobservable inputs (Level 3) \| Market approach \| Weighted Average \| Operating income multiple
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Mandatorily redeemable noncontrolling interesting, measurement input		6.0
Significant unobservable inputs (Level 3) \| Discounted cash flow
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair value	$ 58,331	$ 57,267
Loans receivable at fair value	512,522	694,499
Contingent consideration	$ 27,985	$ 31,046
Significant unobservable inputs (Level 3) \| Discounted cash flow \| Market interest rate
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Equity securities, measurement input		0.238
Significant unobservable inputs (Level 3) \| Discounted cash flow \| EBITDA volatility
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Contingent earnout, measurement input	0.700	0.800
Significant unobservable inputs (Level 3) \| Discounted cash flow \| Asset volatility
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Contingent earnout, measurement input	0.690	0.690
Significant unobservable inputs (Level 3) \| Discounted cash flow \| Revenue volatility
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Contingent earnout, measurement input	0.051
Significant unobservable inputs (Level 3) \| Discounted cash flow \| Minimum \| Market interest rate
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Equity securities, measurement input	0.202
Loans receivable, measurement input	0.100	6.0
Significant unobservable inputs (Level 3) \| Discounted cash flow \| Maximum \| Market interest rate
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Equity securities, measurement input	0.570
Loans receivable, measurement input	0.416	83.5
Significant unobservable inputs (Level 3) \| Discounted cash flow \| Weighted Average \| Market interest rate
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Equity securities, measurement input	0.246	0.238
Loans receivable, measurement input	0.171	0.239
Significant unobservable inputs (Level 3) \| Discounted cash flow \| Weighted Average \| EBITDA volatility
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Contingent earnout, measurement input	0.700	0.800
Significant unobservable inputs (Level 3) \| Discounted cash flow \| Weighted Average \| Asset volatility
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Contingent earnout, measurement input	0.690	0.690
Significant unobservable inputs (Level 3) \| Discounted cash flow \| Weighted Average \| Revenue volatility
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Contingent earnout, measurement input	0.051
Significant unobservable inputs (Level 3) \| Option pricing model
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair value	$ 15,149	$ 7,026
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	0.250	0.003
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	1.870	0.261
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	0.750	0.700

Loans Receivable, Measurement Input

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- Definition

Redeemable Noncontrolling Interest, Equity, Measurement Input

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No definition available.

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- Definition

Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-Publisher FASB
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- Definition

Amount of liability recognized arising from contingent consideration in a business combination.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 805
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
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Value of input used to measure contingent consideration liability from business combination.

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-Topic 820
-SubTopic 10
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- Definition

Amount of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 944
-SubTopic 210
-Name Accounting Standards Codification
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Value of input used to measure investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

Fair value of financial and nonfinancial obligations.

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Fair value portion of loan receivable, including, but not limited to, mortgage loans held for investment, finance receivables held for investment, policy loans on insurance contracts.

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- Definition

The aggregate fair value as of the reporting date of all noncontrolling interests which are redeemable by the (parent) entity (1) at a fixed or determinable price on a fixed or determinable date, (2) at the option of the holder of the noncontrolling interest, or (3) upon occurrence of an event that is not solely within the control of the (parent) entity. This item includes noncontrolling interest holder's ownership (or holders' ownership) regardless of the type of equity interest (common, preferred, other) including all potential organizational (legal) forms of the investee entity.

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