SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Schedule of fair value measurement of level 3 financial assets and liabilities (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward]
Fair Value, Liability, Recurring Basis, Unobservable Input Reconciliation, Liability, Gain (Loss), Statement of Other Comprehensive Income or Comprehensive Income [Extensible Enumeration]	Accounts payable, Accounts receivable, net, Cash and cash equivalents, Accrued expenses and other liabilities, Restricted cash
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]	Trading (loss) income and fair value adjustments on loans
Equity securities | Fair Value, Inputs, Level 3
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward]
Balance at beginning of period	$ 377,549	$ 149,292
Fair Value Adjustments	11,110	88,804
Relating to Undistributed Earnings	0	0
Purchases, Sales and Settlements	18,458	138,766
Transfer in and/or out of Level 3	(38,652)	687
Balance at end of period	368,465	377,549
Loans receivable at fair value | Fair Value, Inputs, Level 3
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward]
Balance at beginning of period	873,186	390,689
Fair Value Adjustments	(54,357)	10,035
Relating to Undistributed Earnings	11,474	10,952
Purchases, Sales and Settlements	(87,814)	461,510
Transfer in and/or out of Level 3	(40,837)	0
Balance at end of period	701,652	873,186
Mandatorily redeemable noncontrolling interests issued after November 5, 2003 | Fair Value, Inputs, Level 3
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward]
Balance at beginning of period	4,506	4,700
Fair Value Adjustments	0	0
Relating to Undistributed Earnings	1,150	(194)
Purchases, Sales and Settlements	(1,008)	0
Transfer in and/or out of Level 3	0	0
Balance at end of period	4,648	4,506
Contingent consideration
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward]
Balance at beginning of period	0
Fair Value Adjustments	(10,371)
Relating to Undistributed Earnings	0
Purchases, Sales and Settlements	41,417
Transfer in and/or out of Level 3	0
Balance at end of period	31,046	0
Warrant liabilities
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward]
Balance at beginning of period	$ 0	0
Fair Value Adjustments		0
Relating to Undistributed Earnings		0
Purchases, Sales and Settlements		10,466
Transfer in and/or out of Level 3		(10,466)
Balance at end of period		$ 0