INVESTMENT SECURITIES - Investments classified by contractual maturity date (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
Available-for-Sale - Amortized Cost
After one through two years	$ 245
After two through three years	1,012
After five through fifteen years	22,107
After fifteen years	33,275
Securities not due on a single maturity date	515,354
Available-for-sale securities, Amortized Cost, Total	571,993	$ 594,564
Available-for-Sale - Fair Value
After one through two years	246
After two through three years	1,025
After five through fifteen years	21,111
After fifteen years	31,364
Securities not due on a single maturity date	477,602
Available-for-Sale, Fair Value, Total	531,348	533,373
Held-to-Maturity - Amortized Carrying Value
After four through five years	1,052
After five through fifteen years	4,564
After fifteen years	507
Securities not due on a single maturity date	175,192
Held-to-Maturity, Amortized Carrying Value, Total	181,315	187,433
Held-to-Maturity - Fair Value
After four through five years	994
After five through fifteen years	4,146
After fifteen years	423
Securities not due on a single maturity date	158,026
Held-to-maturity, Fair Value, Total	$ 163,589	$ 162,765

Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing after year fifteen. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

No definition available.