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INVESTMENT SECURITIES - Amortized Cost, Fair Value (Details) - USD ($) $ in Thousands | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
AFS |  |
Amortized cost | $ 1,366,629 | $ 1,509,736
Gross unrealized gains | 834 | 135
Gross unrealized losses | (116,264) | (131,097)
Fair value | 1,251,199 | 1,378,774
Residential |  |
AFS |  |
Amortized cost | 194,141 | 207,445
Gross unrealized gains | 117 | 0
Gross unrealized losses | (10,460) | (10,183)
Fair value | 183,798 | 197,262
Commercial |  |
AFS |  |
Amortized cost | 55,235 | 65,411
Gross unrealized gains | 0 | 0
Gross unrealized losses | (7,479) | (9,362)
Fair value | 47,756 | 56,049
Residential |  |
AFS |  |
Amortized cost | 473,269 | 592,449
Gross unrealized gains | 8 | 12
Gross unrealized losses | (33,539) | (39,422)
Fair value | 439,738 | 553,039
Commercial |  |
AFS |  |
Amortized cost | 63,456 | 77,909
Gross unrealized gains | 0 | 0
Gross unrealized losses | (6,059) | (7,390)
Fair value | 57,397 | 70,519
Municipal bonds |  |
AFS |  |
Amortized cost | 452,057 | 469,346
Gross unrealized gains | 670 | 41
Gross unrealized losses | (47,853) | (57,839)
Fair value | 404,874 | 411,548
HTM |  |
Amortized cost | 2,371 | 2,441
Gross unrealized gains | 0 | 0
Gross unrealized losses | (40) | (56)
Fair value | 2,331 | 2,385
Corporate debt securities |  |
AFS |  |
Amortized cost | 45,611 | 46,672
Gross unrealized gains | 34 | 74
Gross unrealized losses | (7,098) | (3,801)
Fair value | 38,547 | 42,945
U.S. Treasury securities |  |
AFS |  |
Amortized cost | 22,658 | 23,005
Gross unrealized gains | 0 | 0
Gross unrealized losses | (2,474) | (3,071)
Fair value | 20,184 | 19,934
Agency debentures |  |
AFS |  |
Amortized cost | 60,202 | 27,499
Gross unrealized gains | 5 | 8
Gross unrealized losses | (1,302) | (29)
Fair value | $ 58,905 | $ 27,478

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