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Securities - Unrealized Loss on Securities (Details) - USD ($) $ in Thousands | Mar. 31, 2024 | Dec. 31, 2023
--- | --- | ---
AVAILABLE FOR SALE |  |
Less than 12 Months, fair value | $ 399,134 | $ 185,339
Less than 12 Months, unrealized loss | 1,180 | 1,165
More than 12 Months, fair value | 571,111 | 560,939
More than 12 Months, unrealized Loss | 50,448 | 38,666
Total fair value | 970,245 | 746,278
Total unrealized loss | 51,628 | 39,831
HELD TO MATURITY |  |
Less than 12 months, fair value | 37,730 | 26,505
Less than 12 months, unrealized loss | 688 | 1,258
More than 12 months, fair value | 946,278 | 939,087
More than 12 months, unrealized loss | 161,128 | 150,204
Total fair value | 984,008 | 965,592
Total unrealized loss | 161,816 | 151,462
US Treasury Securities |  |
AVAILABLE FOR SALE |  |
Less than 12 Months, fair value | 139,186 |
Less than 12 Months, unrealized loss | 19 |
More than 12 Months, fair value | 0 |
More than 12 Months, unrealized Loss | 0 |
Total fair value | 139,186 |
Total unrealized loss | 19 |
State and political subdivisions |  |
AVAILABLE FOR SALE |  |
Less than 12 Months, fair value | 7,464 | 26,371
Less than 12 Months, unrealized loss | 73 | 297
More than 12 Months, fair value | 524,101 | 516,520
More than 12 Months, unrealized Loss | 45,957 | 35,233
Total fair value | 531,565 | 542,891
Total unrealized loss | 46,030 | 35,530
HELD TO MATURITY |  |
Less than 12 months, fair value | 35,016 | 16,549
Less than 12 months, unrealized loss | 563 | 123
More than 12 months, fair value | 711,680 | 713,499
More than 12 months, unrealized loss | 137,471 | 126,110
Total fair value | 746,696 | 730,048
Total unrealized loss | 138,034 | 126,233
Corporate bonds and other |  |
AVAILABLE FOR SALE |  |
Less than 12 Months, fair value | 3,450 | 8,103
Less than 12 Months, unrealized loss | 108 | 319
More than 12 Months, fair value | 9,332 | 5,071
More than 12 Months, unrealized Loss | 807 | 188
Total fair value | 12,782 | 13,174
Total unrealized loss | 915 | 507
HELD TO MATURITY |  |
Less than 12 months, fair value | 2,714 | 9,956
Less than 12 months, unrealized loss | 125 | 1,135
More than 12 months, fair value | 126,059 | 114,787
More than 12 months, unrealized loss | 12,722 | 14,603
Total fair value | 128,773 | 124,743
Total unrealized loss | 12,847 | 15,738
Residential |  |
AVAILABLE FOR SALE |  |
Less than 12 Months, fair value | 249,034 | 150,865
Less than 12 Months, unrealized loss | 980 | 549
More than 12 Months, fair value | 35,223 | 36,864
More than 12 Months, unrealized Loss | 3,128 | 2,709
Total fair value | 284,257 | 187,729
Total unrealized loss | 4,108 | 3,258
HELD TO MATURITY |  |
Less than 12 months, fair value | 0 | 0
Less than 12 months, unrealized loss | 0 | 0
More than 12 months, fair value | 80,792 | 82,747
More than 12 months, unrealized loss | 8,578 | 7,263
Total fair value | 80,792 | 82,747
Total unrealized loss | 8,578 | 7,263
Commercial |  |
AVAILABLE FOR SALE |  |
Less than 12 Months, fair value | 0 | 0
Less than 12 Months, unrealized loss | 0 | 0
More than 12 Months, fair value | 2,455 | 2,484
More than 12 Months, unrealized Loss | 556 | 536
Total fair value | 2,455 | 2,484
Total unrealized loss | 556 | 536
HELD TO MATURITY |  |
Less than 12 months, fair value | 0 | 0
Less than 12 months, unrealized loss | 0 | 0
More than 12 months, fair value | 27,747 | 28,054
More than 12 months, unrealized loss | 2,357 | 2,228
Total fair value | 27,747 | 28,054
Total unrealized loss | $ 2,357 | $ 2,228

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