FAIR VALUE MEASUREMENTS - Fair Value Liabilities Measured at Fair Value on a Recurring Basis using Level 3 Inputs (Details) - Asset-Backed Securities Issued - Recurring Basis - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	$ 511,100
Purchases, sales and payments
Ending balance	632,400	$ 511,100
Level 3
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	511,107	1,662,852
Gains (losses) included in net income
Included in other income	(34,647)	(12,991)
Purchases, sales and payments
Payments	(156,974)	(1,138,754)
Ending balance	$ 319,486	$ 511,107