INVESTMENT SECURITIES - Investments classified by contractual maturity date (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Available-for-Sale - Amortized Cost
After three through four years	$ 245
After four through five years	927
After five through fifteen years	6,390
After fifteen years	51,971
Securities not due on a single maturity date	487,247
Available-for-sale securities, Amortized Cost, Total	546,780	$ 553,214
Available-for-Sale - Fair Value
After three through four years	246
After four through five years	952
After five through fifteen years	6,200
After fifteen years	50,508
Securities not due on a single maturity date	435,424
Available-for-sale securities, Fair Value, Total	493,330	490,592
Held-to-Maturity - Amortized Carrying Value
After five through fifteen years	3,251
After fifteen years	2,967
Securities not due on a single maturity date	194,209
Held-to-Maturity, Amortized Carrying Value, Total	200,427	202,495
Held-to-Maturity - Fair Value
After five through fifteen years	2,952
After fifteen years	2,674
Securities not due on a single maturity date	174,227
Held-to-maturity, Fair Value, Total	$ 179,853	$ 177,765

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.