LOANS - Narrative (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023		Jun. 30, 2023
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Assets	$ 93,668,577	$ 93,227,236	[1]	$ 89,330,477
Residential Mortgage Loans
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Assets	2,500,000	2,400,000
Loans held-for-sale	$ 3,900	$ 1,200
Percent of adjustable-rate loans	15.00%	11.00%

[1] (1)Derived from the audited consolidated financial statements at December 31, 2023.