SECURITIES (Securities held to maturity debt maturities) (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Amortized Cost
Due in 1 year or less	$ 5,723
Due in 1 to 5 years	96,350
Due in 5 to 10 years	223,032
Due after 10 years	514,518
Total debt securities	839,623	$ 838,241
Estimated Fair Value
Due in 1 year or less	5,770
Due in 1 to 5 years	97,899
Due in 5 to 10 years	227,641
Due after 10 years	512,986
Estimated Fair Value	$ 844,296	$ 816,399

Amount excluding accrued interest, after allowance for credit loss, of investment in debt security measured at amortized cost (held-to-maturity) with single maturity date and allocated without single maturity date, maturing after tenth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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