DERIVATIVES - Derivatives Recorded at Fair Value (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Derivative [Line Items]
Derivative assets	$ 55,894	$ 52,229
Derivative liabilities	9,372	18,064
Interest rate swaps
Derivative [Line Items]
Derivative assets	1,248	449
Derivative asset, variation margin accounts	1,000,000	1,200,000
Interest rate lock commitments
Derivative [Line Items]
Derivative assets	19,528	16,015
Derivative liabilities	4,400	7,229
TBAs
Derivative [Line Items]
Derivative assets	35,118	35,765
Derivative liabilities	4,972	10,835
Options on treasury futures
Derivative [Line Items]
Derivative assets	$ 0	$ 0