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Securities (Details 2) - USD ($) $ in Thousands | Sep. 30, 2021 | Dec. 31, 2020
--- | --- | ---
Investment securities with unrealized losses |  |
Fair Value, Less Than 12 Months | $ 542,026 | $ 91,251
Unrealized Losses, Less Than 12 Months | (7,963) | (506)
Fair Value, 12 Months or Longer | 5,662 | 0
Unrealized Losses, 12 Months or Longer | (85) | 0
Fair Value, Total | 547,688 | 91,251
Unrealized Losses, Total | (8,048) | (506)
U.S. Treasury and U.S. government sponsored entities |  |
Investment securities with unrealized losses |  |
Fair Value, Less Than 12 Months | 84,849 | 8,153
Unrealized Losses, Less Than 12 Months | (1,479) | (54)
Fair Value, 12 Months or Longer | 627 | 0
Unrealized Losses, 12 Months or Longer | (23) | 0
Fair Value, Total | 85,476 | 8,153
Unrealized Losses, Total | (1,502) | (54)
State and political subdivisions |  |
Investment securities with unrealized losses |  |
Fair Value, Less Than 12 Months | 64,442 | 19,205
Unrealized Losses, Less Than 12 Months | (562) | (204)
Fair Value, 12 Months or Longer | 4,579 | 0
Unrealized Losses, 12 Months or Longer | (56) | 0
Fair Value, Total | 69,021 | 19,205
Unrealized Losses, Total | (618) | (204)
Mortgage-backed securities - residential |  |
Investment securities with unrealized losses |  |
Fair Value, Less Than 12 Months | 390,783 | 63,401
Unrealized Losses, Less Than 12 Months | (5,909) | (243)
Fair Value, 12 Months or Longer | 10 | 0
Unrealized Losses, 12 Months or Longer | 0 | 0
Fair Value, Total | 390,793 | 63,401
Unrealized Losses, Total | (5,909) | (243)
Collateralized mortgage obligations - residential |  |
Investment securities with unrealized losses |  |
Fair Value, Less Than 12 Months | 1,419 | 294
Unrealized Losses, Less Than 12 Months | (2) | (3)
Fair Value, 12 Months or Longer | 249 | 0
Unrealized Losses, 12 Months or Longer | (3) | 0
Fair Value, Total | 1,668 | 294
Unrealized Losses, Total | (5) | (3)
Corporate bonds |  |
Investment securities with unrealized losses |  |
Fair Value, Less Than 12 Months | 533 | 198
Unrealized Losses, Less Than 12 Months | (11) | (2)
Fair Value, 12 Months or Longer | 197 | 0
Unrealized Losses, 12 Months or Longer | (3) | 0
Fair Value, Total | 730 | 198
Unrealized Losses, Total | $ (14) | $ (2)

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