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Securities - Schedule of Available-for-Sale Securities with Unrealized Losses (Details) - USD ($) $ in Thousands | Sep. 30, 2025 | Dec. 31, 2024
--- | --- | ---
Fair Value |  |
Fair Value, Less than 12 Months | $ 45,932 | $ 76,389
Fair Value, 12 Months or Longer | 789,496 | 880,651
Fair Value | 835,428 | 957,040
Unrealized Losses |  |
Unrealized Losses, Less than 12 Months | 286 | 1,142
Unrealized Losses, 12 Months or Longer | 101,782 | 138,284
Unrealized Losses | 102,068 | 139,426
U.S. Treasuries |  |
Fair Value |  |
Fair Value, Less than 12 Months | 0 | 0
Fair Value, 12 Months or Longer | 38,655 | 57,019
Fair Value | 38,655 | 57,019
Unrealized Losses |  |
Unrealized Losses, Less than 12 Months | 0 | 0
Unrealized Losses, 12 Months or Longer | 2,194 | 3,784
Unrealized Losses | 2,194 | 3,784
Obligations of U.S. Government sponsored entities |  |
Fair Value |  |
Fair Value, Less than 12 Months | 0 | 14,085
Fair Value, 12 Months or Longer | 150,482 | 188,296
Fair Value | 150,482 | 202,381
Unrealized Losses |  |
Unrealized Losses, Less than 12 Months | 0 | 515
Unrealized Losses, 12 Months or Longer | 12,753 | 19,861
Unrealized Losses | 12,753 | 20,376
Obligations of U.S. states and political subdivisions |  |
Fair Value |  |
Fair Value, Less than 12 Months | 2,533 | 3,159
Fair Value, 12 Months or Longer | 64,883 | 73,657
Fair Value | 67,416 | 76,816
Unrealized Losses |  |
Unrealized Losses, Less than 12 Months | 1 | 36
Unrealized Losses, 12 Months or Longer | 5,631 | 8,602
Unrealized Losses | 5,632 | 8,638
U.S. Government agencies |  |
Fair Value |  |
Fair Value, Less than 12 Months | 13,501 | 27,082
Fair Value, 12 Months or Longer | 40,746 | 35,879
Fair Value | 54,247 | 62,961
Unrealized Losses |  |
Unrealized Losses, Less than 12 Months | 19 | 89
Unrealized Losses, 12 Months or Longer | 3,683 | 4,790
Unrealized Losses | 3,702 | 4,879
U.S. Government sponsored entities |  |
Fair Value |  |
Fair Value, Less than 12 Months | 29,898 | 32,063
Fair Value, 12 Months or Longer | 492,286 | 523,353
Fair Value | 522,184 | 555,416
Unrealized Losses |  |
Unrealized Losses, Less than 12 Months | 266 | 502
Unrealized Losses, 12 Months or Longer | 77,465 | 101,194
Unrealized Losses | 77,731 | 101,696
U.S. corporate debt securities |  |
Fair Value |  |
Fair Value, Less than 12 Months | 0 | 0
Fair Value, 12 Months or Longer | 2,444 | 2,447
Fair Value | 2,444 | 2,447
Unrealized Losses |  |
Unrealized Losses, Less than 12 Months | 0 | 0
Unrealized Losses, 12 Months or Longer | 56 | 53
Unrealized Losses | $ 56 | $ 53

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