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INVESTMENTS (Summary of Amortized Cost and Fair Value of Held to Maturity Securities) (Details) - USD ($) $ in Thousands | Jun. 30, 2024 | Dec. 31, 2023
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Schedule of Investments [Line Items] |  |
Held-to-maturity securities, at amortized cost | $ 533,600 | $ 544,931
Unrealized Gains | 754 | 3,134
Debt Securities, Held-to-maturity, Accumulated Unrecognized Loss | (48,534) | (37,470)
Held-to-maturity securities, fair value | 485,820 | 510,595
Obligations of U.S. government-sponsored enterprises |  |
Schedule of Investments [Line Items] |  |
Held-to-maturity securities, at amortized cost | 7,661 | 7,593
Unrealized Gains | 0 | 0
Debt Securities, Held-to-maturity, Accumulated Unrecognized Loss | (623) | (528)
Held-to-maturity securities, fair value | 7,038 | 7,065
Debt Securities, Held-to-Maturity, Amortized Cost, Unamortized Unrealized Loss | 924 | 992
Obligations of states and political subdivisions |  |
Schedule of Investments [Line Items] |  |
Held-to-maturity securities, at amortized cost | 56,404 | 56,262
Unrealized Gains | 86 | 1,242
Debt Securities, Held-to-maturity, Accumulated Unrecognized Loss | (1,839) | (731)
Held-to-maturity securities, fair value | 54,651 | 56,773
Debt Securities, Held-to-Maturity, Amortized Cost, Unamortized Unrealized Loss | 5,400 | 5,600
MBS issued or guaranteed by U.S. government-sponsored enterprises |  |
Schedule of Investments [Line Items] |  |
Held-to-maturity securities, at amortized cost | 299,066 | 304,850
Unrealized Gains | 0 | 0
Debt Securities, Held-to-maturity, Accumulated Unrecognized Loss | (29,946) | (21,623)
Held-to-maturity securities, fair value | 269,120 | 283,227
Debt Securities, Held-to-Maturity, Amortized Cost, Unamortized Unrealized Loss | 32,800 | 34,600
Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises |  |
Schedule of Investments [Line Items] |  |
Held-to-maturity securities, at amortized cost | 151,232 | 157,118
Unrealized Gains | 210 | 515
Debt Securities, Held-to-maturity, Accumulated Unrecognized Loss | (14,881) | (13,497)
Held-to-maturity securities, fair value | 136,561 | 144,136
Debt Securities, Held-to-Maturity, Amortized Cost, Unamortized Unrealized Loss | 17,400 | 18,400
Corporate bonds |  |
Schedule of Investments [Line Items] |  |
Held-to-maturity securities, at amortized cost | 19,237 | 19,108
Unrealized Gains | 458 | 1,377
Debt Securities, Held-to-maturity, Accumulated Unrecognized Loss | (1,245) | (1,091)
Held-to-maturity securities, fair value | 18,450 | 19,394
Debt Securities, Held-to-Maturity, Amortized Cost, Unamortized Unrealized Loss | $ 70 | $ 85

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