SECURITIES (Held-to-maturity Securities, Debt Maturities) (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Amortized Cost
Due in 1 year or less	$ 8,116
Due in 1 to 5 years	88,728
Due in 5 to 10 years	158,686
Due after 10 years	582,711
Total investment securities	838,241	$ 829,403
Estimated Fair Value
Due in 1 year or less	8,126
Due in 1 to 5 years	88,646
Due in 5 to 10 years	158,430
Due after 10 years	561,197
Total investment securities	$ 816,399	$ 776,557

Amount excluding accrued interest, before allowance for credit loss, of investment in debt security measured at amortized cost (held-to-maturity).

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