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INVESTMENTS (Summary of Amortized Cost and Fair Value of Held to Maturity Securities) (Details) - USD ($) $ in Thousands | Sep. 30, 2022 | Dec. 31, 2021
--- | --- | ---
Schedule of Investments [Line Items] |  |
Held-to-maturity securities, at amortized cost | $ 534,309 | $ 1,291
Unrealized Gains | 0 | 89
Debt Securities, Held-to-maturity, Accumulated Unrecognized Loss | (42,550) | 0
Held-to-maturity securities, fair value | 491,759 | 1,380
US Government-sponsored Enterprises Debt Securities [Member] |  |
Schedule of Investments [Line Items] |  |
Held-to-maturity securities, at amortized cost | 7,422 |
Unrealized Gains | 0 |
Debt Securities, Held-to-maturity, Accumulated Unrecognized Loss | (664) |
Held-to-maturity securities, fair value | 6,758 |
Obligations of states and political subdivisions |  |
Schedule of Investments [Line Items] |  |
Held-to-maturity securities, at amortized cost | 55,908 | 1,291
Unrealized Gains | 0 | 89
Debt Securities, Held-to-maturity, Accumulated Unrecognized Loss | (3,595) | 0
Held-to-maturity securities, fair value | 52,313 | $ 1,380
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member] |  |
Schedule of Investments [Line Items] |  |
Held-to-maturity securities, at amortized cost | 320,850 |
Unrealized Gains | 0 |
Debt Securities, Held-to-maturity, Accumulated Unrecognized Loss | (27,067) |
Held-to-maturity securities, fair value | 293,783 |
Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises |  |
Schedule of Investments [Line Items] |  |
Held-to-maturity securities, at amortized cost | 147,753 |
Unrealized Gains | 0 |
Debt Securities, Held-to-maturity, Accumulated Unrecognized Loss | (10,990) |
Held-to-maturity securities, fair value | 136,763 |
Subordinated corporate bonds |  |
Schedule of Investments [Line Items] |  |
Held-to-maturity securities, at amortized cost | 2,376 |
Unrealized Gains | 0 |
Debt Securities, Held-to-maturity, Accumulated Unrecognized Loss | (234) |
Held-to-maturity securities, fair value | $ 2,142 |

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