SECURITIES - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Debt Securities, Available-for-sale [Line Items]
Unrealized gains (losses) on agency mortgage-backed securities	$ (1,849,585)	$ (2,125,618)	$ (4,602,456)
Residential investment securities sold, carrying value	21,400,000	36,400,000
Agency Securities
Debt Securities, Available-for-sale [Line Items]
Unrealized gains (losses) on agency mortgage-backed securities	$ (1,100,000)	$ 611,500