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Securities (Details 3) - USD ($) $ in Thousands | Jun. 30, 2024 | Dec. 31, 2023
--- | --- | ---
Investment securities with unrealized losses |  |
Fair Value, Less Than 12 Months | $ 126,267 | $ 49,846
Unrealized Losses, Less Than 12 Months | (5,426) | (3,025)
Fair Value, 12 Months or Longer | 1,059,792 | 1,116,642
Unrealized Losses, 12 Months or Longer | (239,363) | (219,539)
Fair Value, Total | 1,186,059 | 1,166,488
Unrealized Losses, Total | (244,789) | (222,564)
U.S. Treasury and U.S. government sponsored entities |  |
Investment securities with unrealized losses |  |
Fair Value, Less Than 12 Months | 1,381 | 399
Unrealized Losses, Less Than 12 Months | (13) | (1)
Fair Value, 12 Months or Longer | 116,768 | 122,361
Unrealized Losses, 12 Months or Longer | (18,729) | (17,596)
Fair Value, Total | 118,149 | 122,760
Unrealized Losses, Total | (18,742) | (17,597)
State and political subdivisions |  |
Investment securities with unrealized losses |  |
Fair Value, Less Than 12 Months | 58,668 | 15,852
Unrealized Losses, Less Than 12 Months | (3,598) | (1,684)
Fair Value, 12 Months or Longer | 403,117 | 428,416
Unrealized Losses, 12 Months or Longer | (99,693) | (91,819)
Fair Value, Total | 461,785 | 444,268
Unrealized Losses, Total | (103,291) | (93,503)
Corporate bonds |  |
Investment securities with unrealized losses |  |
Fair Value, Less Than 12 Months | 1,894 | 8,463
Unrealized Losses, Less Than 12 Months | (35) | (284)
Fair Value, 12 Months or Longer | 9,172 | 3,881
Unrealized Losses, 12 Months or Longer | (436) | (182)
Fair Value, Total | 11,066 | 12,344
Unrealized Losses, Total | (471) | (466)
Mortgage-backed securities - residential |  |
Investment securities with unrealized losses |  |
Fair Value, Less Than 12 Months | 13,730 | 5,113
Unrealized Losses, Less Than 12 Months | (277) | (76)
Fair Value, 12 Months or Longer | 485,650 | 515,259
Unrealized Losses, 12 Months or Longer | (114,335) | (104,068)
Fair Value, Total | 499,380 | 520,372
Unrealized Losses, Total | (114,612) | (104,144)
Collateralized mortgage obligations |  |
Investment securities with unrealized losses |  |
Fair Value, Less Than 12 Months | 50,594 | 20,019
Unrealized Losses, Less Than 12 Months | (1,503) | (980)
Fair Value, 12 Months or Longer | 42,389 | 43,808
Unrealized Losses, 12 Months or Longer | (5,900) | (5,579)
Fair Value, Total | 92,983 | 63,827
Unrealized Losses, Total | (7,403) | (6,559)
Small Business Administration |  |
Investment securities with unrealized losses |  |
Fair Value, Less Than 12 Months | 0 | 0
Unrealized Losses, Less Than 12 Months | 0 | 0
Fair Value, 12 Months or Longer | 2,696 | 2,917
Unrealized Losses, 12 Months or Longer | (270) | (295)
Fair Value, Total | 2,696 | 2,917
Unrealized Losses, Total | $ (270) | $ (295)

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