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SECURITIES (Schedule of Securities) (Details) - USD ($) $ in Thousands | Mar. 31, 2025 | Dec. 31, 2024
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Schedule of Securities [Line Items] |  |
Debt Securities, Available-for-sale, Amortized Cost | $ 2,426,395 | $ 2,460,262
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax | 1,968 | 1,091
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax | 319,418 | 356,842
Debt Securities, Available-for-Sale | 2,108,945 | 2,104,511
Held-to-maturity Securities, Amortized Cost | 992,088 | 1,001,861
Held-to-maturity Securities, Gross Unrealized Gains | 2 | 36
Held-to-maturity Securities, Gross Unrealized Losses | 172,537 | 176,072
Securities—held-to-maturity | 819,261 | 825,528
Allowance for Credit Losses | (292) | (297)
debt securities, held-to-maturity, accrued interest receivable | 3,700 | 4,200
Debt Securities, Available-for-Sale, Accrued Interest Receivable | 9,200 | 9,000
U.S. Government and agency obligations |  |
Schedule of Securities [Line Items] |  |
Debt Securities, Available-for-sale, Amortized Cost | 7,965 | 8,492
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax | 0 | 0
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax | 409 | 559
Debt Securities, Available-for-Sale | 7,556 | 7,933
Held-to-maturity Securities, Amortized Cost | 301 | 302
Held-to-maturity Securities, Gross Unrealized Gains | 1 | 0
Held-to-maturity Securities, Gross Unrealized Losses | 3 | 4
Securities—held-to-maturity | 299 | 298
Allowance for Credit Losses | 0 | 0
Municipal bonds |  |
Schedule of Securities [Line Items] |  |
Debt Securities, Available-for-sale, Amortized Cost | 157,399 | 153,982
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax | 255 | 453
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax | 31,138 | 30,453
Debt Securities, Available-for-Sale | 126,516 | 123,982
Held-to-maturity Securities, Amortized Cost | 437,344 | 438,196
Held-to-maturity Securities, Gross Unrealized Gains | 1 | 36
Held-to-maturity Securities, Gross Unrealized Losses | 70,729 | 62,809
Securities—held-to-maturity | 366,474 | 375,280
Allowance for Credit Losses | (142) | (143)
Corporate bonds |  |
Schedule of Securities [Line Items] |  |
Debt Securities, Available-for-sale, Amortized Cost | 131,408 | 131,379
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax | 97 | 100
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax | 5,431 | 6,489
Debt Securities, Available-for-Sale | 126,074 | 124,990
Held-to-maturity Securities, Amortized Cost | 2,629 | 2,658
Held-to-maturity Securities, Gross Unrealized Gains | 0 | 0
Held-to-maturity Securities, Gross Unrealized Losses | 5 | 6
Securities—held-to-maturity | 2,474 | 2,498
Allowance for Credit Losses | (150) | (154)
Mortgage-backed or related securities |  |
Schedule of Securities [Line Items] |  |
Debt Securities, Available-for-sale, Amortized Cost | 1,966,137 | 1,995,805
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax | 1,440 | 383
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax | 282,391 | 319,340
Debt Securities, Available-for-Sale | 1,685,186 | 1,676,848
Held-to-maturity Securities, Amortized Cost | 551,814 | 560,705
Held-to-maturity Securities, Gross Unrealized Gains | 0 | 0
Held-to-maturity Securities, Gross Unrealized Losses | 101,800 | 113,253
Securities—held-to-maturity | 450,014 | 447,452
Allowance for Credit Losses | 0 | 0
Asset-backed securities |  |
Schedule of Securities [Line Items] |  |
Debt Securities, Available-for-sale, Amortized Cost | 163,486 | 170,604
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax | 176 | 155
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax | 49 | 1
Debt Securities, Available-for-Sale | $ 163,613 | $ 170,758

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