FAIR VALUE MEASUREMENTS - Schedule of Changes in the Company’s Level 3 Financial Liabilities (Details) - Recurring Basis $ in Thousands	3 Months Ended
	Mar. 31, 2024 USD ($)
Asset-Backed Securities Issued
Purchases, sales and repayments
Ending balance	$ 546,000
Level 3
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	453,927
Gains (losses) included in net income
Other income	(445)
Purchases, sales and repayments
Proceeds from sales	0
Payments	(13,437)
Ending balance	440,045
Level 3 | Asset-Backed Securities Issued
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	235,770
Gains (losses) included in net income
Other income	(411)
Purchases, sales and repayments
Proceeds from sales	0
Payments	(13,437)
Ending balance	221,922
Level 3 | Notes Payable of Consolidated Funds
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	218,157
Gains (losses) included in net income
Other income	(34)
Purchases, sales and repayments
Proceeds from sales	0
Payments	0
Ending balance	$ 218,123