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Securities (Details 2) - USD ($) $ in Thousands | Jun. 30, 2023 | Dec. 31, 2022
--- | --- | ---
Investment securities with unrealized losses |  |
Fair Value, Less Than 12 Months | $ 133,120 | $ 506,824
Unrealized Losses, Less Than 12 Months | (4,912) | (80,411)
Fair Value, 12 Months or Longer | 1,131,064 | 728,881
Unrealized Losses, 12 Months or Longer | (241,261) | (186,354)
Fair Value, Total | 1,264,184 | 1,235,705
Unrealized Losses, Total | (246,173) | (266,765)
U.S. Treasury and U.S. government sponsored entities |  |
Investment securities with unrealized losses |  |
Fair Value, Less Than 12 Months | 14,652 | 52,311
Unrealized Losses, Less Than 12 Months | (692) | (5,835)
Fair Value, 12 Months or Longer | 115,535 | 75,685
Unrealized Losses, 12 Months or Longer | (19,411) | (15,781)
Fair Value, Total | 130,187 | 127,996
Unrealized Losses, Total | (20,103) | (21,616)
State and political subdivisions |  |
Investment securities with unrealized losses |  |
Fair Value, Less Than 12 Months | 73,802 | 306,709
Unrealized Losses, Less Than 12 Months | (2,835) | (56,650)
Fair Value, 12 Months or Longer | 432,373 | 191,584
Unrealized Losses, 12 Months or Longer | (103,084) | (65,241)
Fair Value, Total | 506,175 | 498,293
Unrealized Losses, Total | (105,919) | (121,891)
Corporate bonds |  |
Investment securities with unrealized losses |  |
Fair Value, Less Than 12 Months | 11,011 | 2,893
Unrealized Losses, Less Than 12 Months | (411) | (122)
Fair Value, 12 Months or Longer | 3,561 | 986
Unrealized Losses, 12 Months or Longer | (311) | (180)
Fair Value, Total | 14,572 | 3,879
Unrealized Losses, Total | (722) | (302)
Mortgage-backed securities - residential |  |
Investment securities with unrealized losses |  |
Fair Value, Less Than 12 Months | 4,678 | 101,476
Unrealized Losses, Less Than 12 Months | (44) | (13,545)
Fair Value, 12 Months or Longer | 535,644 | 453,233
Unrealized Losses, 12 Months or Longer | (112,739) | (104,109)
Fair Value, Total | 540,322 | 554,709
Unrealized Losses, Total | (112,783) | (117,654)
Collateralized mortgage obligations |  |
Investment securities with unrealized losses |  |
Fair Value, Less Than 12 Months | 28,977 | 42,140
Unrealized Losses, Less Than 12 Months | (930) | (4,137)
Fair Value, 12 Months or Longer | 40,852 | 5,214
Unrealized Losses, 12 Months or Longer | (5,356) | (800)
Fair Value, Total | 69,829 | 47,354
Unrealized Losses, Total | (6,286) | (4,937)
Small Business Administration |  |
Investment securities with unrealized losses |  |
Fair Value, Less Than 12 Months | 0 | 1,295
Unrealized Losses, Less Than 12 Months | 0 | (122)
Fair Value, 12 Months or Longer | 3,099 | 2,179
Unrealized Losses, 12 Months or Longer | (360) | (243)
Fair Value, Total | 3,099 | 3,474
Unrealized Losses, Total | $ (360) | $ (365)

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