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Securities - Schedule of Unrealized Losses on Available-for-Sale of Securities (Details) - USD ($) $ in Thousands | Mar. 31, 2026 | Dec. 31, 2025
--- | --- | ---
Fair Value |  |
Less than 12 Months | $ 645,597 | $ 473,204
12 Months or Longer | 253,122 | 268,309
Total | 898,719 | 741,513
Unrealized Losses |  |
Less than 12 Months | 7,510 | 3,583
12 Months or Longer | 20,759 | 19,440
Total | 28,269 | 23,023
U.S. Treasuries |  |
Fair Value |  |
Less than 12 Months | 0 | 0
12 Months or Longer | 28,906 | 38,936
Total | 28,906 | 38,936
Unrealized Losses |  |
Less than 12 Months | 0 | 0
12 Months or Longer | 1,966 | 1,925
Total | 1,966 | 1,925
Obligations of U.S. Government sponsored entities |  |
Fair Value |  |
Less than 12 Months | 26,669 | 0
12 Months or Longer | 141,157 | 141,606
Total | 167,826 | 141,606
Unrealized Losses |  |
Less than 12 Months | 189 | 0
12 Months or Longer | 12,123 | 11,653
Total | 12,312 | 11,653
Obligations of U.S. states and political subdivisions |  |
Fair Value |  |
Less than 12 Months | 9,391 | 2,530
12 Months or Longer | 61,099 | 65,279
Total | 70,490 | 67,809
Unrealized Losses |  |
Less than 12 Months | 56 | 2
12 Months or Longer | 5,930 | 5,212
Total | 5,986 | 5,214
U.S. Government agencies |  |
Fair Value |  |
Less than 12 Months | 187,441 | 179,250
12 Months or Longer | 11,620 | 12,051
Total | 199,061 | 191,301
Unrealized Losses |  |
Less than 12 Months | 2,289 | 2,129
12 Months or Longer | 248 | 228
Total | 2,537 | 2,357
U.S. Government sponsored entities |  |
Fair Value |  |
Less than 12 Months | 422,096 | 291,424
12 Months or Longer | 7,889 | 7,990
Total | 429,985 | 299,414
Unrealized Losses |  |
Less than 12 Months | 4,976 | 1,452
12 Months or Longer | 443 | 369
Total | 5,419 | 1,821
U.S. corporate debt securities |  |
Fair Value |  |
Less than 12 Months | 0 | 0
12 Months or Longer | 2,451 | 2,447
Total | 2,451 | 2,447
Unrealized Losses |  |
Less than 12 Months | 0 | 0
12 Months or Longer | 49 | 53
Total | $ 49 | $ 53

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