LOANS - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Assets	$ 103,556,384	$ 93,227,236	$ 81,850,712
Loan loss (provision) reversal	0	(219)	$ (20,660)
Allowance for loan loss	0	0
Residential mortgage loans
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Assets	3,500,000	2,400,000
Loans held-for-sale	$ 10,000	$ 1,200
Percent of adjustable-rate loans	16.00%	11.00%