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Securities Available for Sale (Details 3) - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Investment securities with unrealized losses |  |
Fair Value, Less Than 12 Months | $ 506,824 | $ 718,367
Unrealized Losses, Less Than 12 Months | (80,411) | (10,925)
Fair Value, 12 Months or Longer | 728,881 | 74,575
Unrealized Losses, 12 Months or Longer | (186,354) | (2,812)
Fair Value, Total | 1,235,705 | 792,942
Unrealized Losses, Total | (266,765) | (13,737)
U.S. Treasury and U.S. government sponsored entities |  |
Investment securities with unrealized losses |  |
Fair Value, Less Than 12 Months | 52,311 | 81,236
Unrealized Losses, Less Than 12 Months | (5,835) | (1,960)
Fair Value, 12 Months or Longer | 75,685 | 8,271
Unrealized Losses, 12 Months or Longer | (15,781) | (378)
Fair Value, Total | 127,996 | 89,507
Unrealized Losses, Total | (21,616) | (2,338)
State and political subdivisions |  |
Investment securities with unrealized losses |  |
Fair Value, Less Than 12 Months | 306,709 | 103,651
Unrealized Losses, Less Than 12 Months | (56,650) | (1,020)
Fair Value, 12 Months or Longer | 191,584 | 10,020
Unrealized Losses, 12 Months or Longer | (65,241) | (185)
Fair Value, Total | 498,293 | 113,671
Unrealized Losses, Total | (121,891) | (1,205)
Corporate bonds |  |
Investment securities with unrealized losses |  |
Fair Value, Less Than 12 Months | 2,893 | 418
Unrealized Losses, Less Than 12 Months | (122) | (2)
Fair Value, 12 Months or Longer | 986 | 715
Unrealized Losses, 12 Months or Longer | (180) | (27)
Fair Value, Total | 3,879 | 1,133
Unrealized Losses, Total | (302) | (29)
Mortgage-backed securities - residential |  |
Investment securities with unrealized losses |  |
Fair Value, Less Than 12 Months | 101,476 | 525,792
Unrealized Losses, Less Than 12 Months | (13,545) | (7,872)
Fair Value, 12 Months or Longer | 453,233 | 55,569
Unrealized Losses, 12 Months or Longer | (104,109) | (2,222)
Fair Value, Total | 554,709 | 581,361
Unrealized Losses, Total | (117,654) | (10,094)
Collateralized mortgage obligations |  |
Investment securities with unrealized losses |  |
Fair Value, Less Than 12 Months | 42,140 | 7,270
Unrealized Losses, Less Than 12 Months | (4,137) | (71)
Fair Value, 12 Months or Longer | 5,214 | 0
Unrealized Losses, 12 Months or Longer | (800) | 0
Fair Value, Total | 47,354 | 7,270
Unrealized Losses, Total | (4,937) | $ (71)
Small Business Administration |  |
Investment securities with unrealized losses |  |
Fair Value, Less Than 12 Months | 1,295 |
Unrealized Losses, Less Than 12 Months | (122) |
Fair Value, 12 Months or Longer | 2,179 |
Unrealized Losses, 12 Months or Longer | (243) |
Fair Value, Total | 3,474 |
Unrealized Losses, Total | $ (365) |

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