PORTFOLIO LOANS - Schedule of Financial Instruments Owned and Pledged as Collateral (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Financial Instruments Owned and Pledged as Collateral [Line Items]
Pledged loans	$ 7,613,683	$ 7,559,294
Total pledged loans
Financial Instruments Owned and Pledged as Collateral [Line Items]
Pledged loans	5,579,424	5,588,395
FHLB
Financial Instruments Owned and Pledged as Collateral [Line Items]
Pledged loans	4,813,600	4,865,481
Federal Reserve Bank
Financial Instruments Owned and Pledged as Collateral [Line Items]
Pledged loans	$ 765,824	$ 722,914