FAIR VALUE MEASUREMENT - Level 3 Roll Forward (Details) - Level 3 - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance, beginning of period	$ 663,189	$ 626,369
Transfer from Level 2	0	10,469
Additions	66,719	259,876
Cash received	(47,310)	(23,014)
Gain on sale of Investments in loans and securities	5,894	0
Change in accrued interest on investments	3,278	0
Change in fair value (OCI)	(15,946)	(21,727)
Credit-related impairment loss, net of recoveries	(34,207)	(26,852)
Balance, end of period	$ 641,617	$ 825,121