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INVESTMENT SECURITIES (Schedule of Amortized Cost and Fair Value of Securities Classified by Contractual Maturity) (Details) - USD ($) $ in Thousands | Mar. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Held-to-maturity Securities, Amortized Cost |  |
Due within 1 year | $ 20,021 |
After 1 year through 5 years | 17,969 | $ 37,984
After 5 years though 10 years | 1,046 | 1,112
After 10 years | 421,213 | 429,764
Amortized Cost, total | 460,249 | 468,860
Held-to-maturity Securities, Fair Value |  |
Due within 1 year | 19,299 |
After 1 year through 5 years | 16,289 | 35,507
After 5 years though 10 years | 974 | 1,044
After 10 years | 356,618 | 367,701
Fair Value, total | 393,180 | 404,252
Available-for-sale Securities, Amortized Cost |  |
After 1 year through 5 years | 72,958 | 65,822
After 5 years though 10 years | 19,320 | 22,163
After 10 years | 487,782 | 451,005
Amortized Cost, total | 580,060 | 538,990
Available-for-sale Securities, Fair Value |  |
After 1 year through 5 years | 67,179 | 60,757
After 5 years though 10 years | 17,724 | 21,174
After 10 years | 412,886 | 379,276
Fair Value, total | 497,789 | 461,207
Securities pledged | 180,900 | 845,700
Securities encumbered | $ 68,100 | $ 60,000

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