MORTGAGE SERVICING RIGHTS - (Mortgage Loan Portfolio) (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Acquired Finite-Lived Intangible Assets [Line Items]
Loans serviced for others	$ 1,171,422	$ 1,177,742
Federal National Mortgage Association Certificates and Obligations (FNMA)
Acquired Finite-Lived Intangible Assets [Line Items]
Loans serviced for others	741,186	720,070
Federal Home Loan Mortgage Corporation Certificates and Obligations (FHLMC)
Acquired Finite-Lived Intangible Assets [Line Items]
Loans serviced for others	429,933	457,228
Federal Home Loan Bank Certificates and Obligations (FHLB)
Acquired Finite-Lived Intangible Assets [Line Items]
Loans serviced for others	$ 303	$ 444