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SECURITIES (Available for Sale securities in continuous unrealized loss position) (Details) $ in Thousands | 12 Months Ended
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Dec. 31, 2023 USD ($) holding | Dec. 31, 2022 USD ($) holding | Dec. 31, 2021 USD ($)
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items] |  |  |
Debt Securities, Available-for-sale, Unrealized Loss Position, Number of Positions | holding | 163 | 173 |
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months | $ 1,620 | $ 333,099 |
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss | 18 | 35,411 |
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer | 1,328,959 | 1,062,964 |
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | (125,618) | (132,268) |
Debt Securities, Available-for-sale, Unrealized Loss Position | 1,330,579 | 1,396,063 |
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss | (125,636) | (167,679) |
Equity Securities, FV-NI, Realized Gain (Loss) | $ 197 | $ 0 | $ 192
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member] |  |  |
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items] |  |  |
Debt Securities, Available-for-sale, Unrealized Loss Position, Number of Positions | holding | 115 | 123 |
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months | $ 1,091 | $ 155,944 |
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss | 11 | 15,186 |
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer | 273,447 | 154,653 |
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | (37,235) | (30,248) |
Debt Securities, Available-for-sale, Unrealized Loss Position | 274,538 | 310,597 |
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss | $ (37,246) | $ (45,434) |
Agency collateralized mortgage obligations [Member] |  |  |
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items] |  |  |
Debt Securities, Available-for-sale, Unrealized Loss Position, Number of Positions | holding | 12 | 13 |
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months | $ 339 | $ 38,843 |
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss | 2 | 3,031 |
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer | 31,682 | 0 |
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | (2,528) | 0 |
Debt Securities, Available-for-sale, Unrealized Loss Position | 32,021 | 38,843 |
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss | $ (2,530) | $ (3,031) |
Pooled Trust Preferred Securities Issued By Banks And Insurers [Member] |  |  |
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items] |  |  |
Debt Securities, Available-for-sale, Unrealized Loss Position, Number of Positions | holding | 1 | 1 |
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months | $ 0 | $ 0 |
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss | 0 | 0 |
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer | 1,018 | 1,034 |
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | (170) | (169) |
Debt Securities, Available-for-sale, Unrealized Loss Position | 1,018 | 1,034 |
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss | $ (170) | $ (169) |
US Treasury Securities [Member] |  |  |
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items] |  |  |
Debt Securities, Available-for-sale, Unrealized Loss Position, Number of Positions | holding | 17 | 18 |
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months | $ 0 | $ 43,035 |
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss |  | 6,350 |
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer | 769,102 | 748,306 |
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | (55,495) | (76,344) |
Debt Securities, Available-for-sale, Unrealized Loss Position | 769,102 | 791,341 |
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss | $ (55,495) | $ (82,694) |
US Government Agencies Debt Securities [Member] |  |  |
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items] |  |  |
Debt Securities, Available-for-sale, Unrealized Loss Position, Number of Positions | holding | 9 | 9 |
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months | $ 0 | $ 60,575 |
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss |  | 7,292 |
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer | 207,138 | 141,725 |
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | (23,060) | (21,344) |
Debt Securities, Available-for-sale, Unrealized Loss Position | 207,138 | 202,300 |
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss | $ (23,060) | $ (28,636) |
US States and Political Subdivisions Debt Securities [Member] |  |  |
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items] |  |  |
Debt Securities, Available-for-sale, Unrealized Loss Position, Number of Positions | holding | 1 | 1 |
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months | $ 190 | $ 191 |
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss | 5 | 2 |
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer | 0 | 0 |
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | 0 | 0 |
Debt Securities, Available-for-sale, Unrealized Loss Position | 190 | 191 |
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss | $ (5) | $ (2) |
Small Business Administration Pooled Securities [Member] |  |  |
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items] |  |  |
Debt Securities, Available-for-sale, Unrealized Loss Position, Number of Positions | holding | 8 | 8 |
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months | $ 0 | $ 34,511 |
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss | 0 | 3,550 |
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer | 46,572 | 17,246 |
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | (7,130) | (4,163) |
Debt Securities, Available-for-sale, Unrealized Loss Position | 46,572 | 51,757 |
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss | $ (7,130) | $ (7,713) |

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