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INVESTMENTS (Summary of Amortized Cost and Fair Value of Held to Maturity Securities) (Details) - USD ($) $ in Thousands | Jun. 30, 2022 | Dec. 31, 2021
--- | --- | ---
Schedule of Investments [Line Items] |  |
Held-to-maturity securities, at amortized cost | $ 546,520 | $ 1,291
Unrealized Gains | 223 | 89
Debt Securities, Held-to-maturity, Accumulated Unrecognized Loss | (9,205) | 0
Held-to-maturity securities, fair value | 537,538 | 1,380
US Government-sponsored Enterprises Debt Securities [Member] |  |
Schedule of Investments [Line Items] |  |
Held-to-maturity securities, at amortized cost | 7,389 |
Unrealized Gains | 0 |
Debt Securities, Held-to-maturity, Accumulated Unrecognized Loss | (158) |
Held-to-maturity securities, fair value | 7,231 |
Obligations of states and political subdivisions |  |
Schedule of Investments [Line Items] |  |
Held-to-maturity securities, at amortized cost | 55,837 | 1,291
Unrealized Gains | 223 | 89
Debt Securities, Held-to-maturity, Accumulated Unrecognized Loss | (816) | 0
Held-to-maturity securities, fair value | 55,244 | $ 1,380
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member] |  |
Schedule of Investments [Line Items] |  |
Held-to-maturity securities, at amortized cost | 329,542 |
Unrealized Gains | 0 |
Debt Securities, Held-to-maturity, Accumulated Unrecognized Loss | (5,529) |
Held-to-maturity securities, fair value | 324,013 |
Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises |  |
Schedule of Investments [Line Items] |  |
Held-to-maturity securities, at amortized cost | 151,384 |
Unrealized Gains | 0 |
Debt Securities, Held-to-maturity, Accumulated Unrecognized Loss | (2,593) |
Held-to-maturity securities, fair value | 148,791 |
Subordinated corporate bonds |  |
Schedule of Investments [Line Items] |  |
Held-to-maturity securities, at amortized cost | 2,368 |
Unrealized Gains | 0 |
Debt Securities, Held-to-maturity, Accumulated Unrecognized Loss | (109) |
Held-to-maturity securities, fair value | $ 2,259 |

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