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Securities - Schedule of Securities with Unrealized Losses (Details) - USD ($) $ in Thousands | Jun. 30, 2020 | Dec. 31, 2019
--- | --- | ---
Available-for-sale securities |  |
Fair Value, Less than 12 Months | $ 106,458 | $ 241,757
Unrealized Losses, Less than 12 Months | 1,177 | 1,371
Fair Value, 12 Months or Longer | 15,150 | 288,210
Unrealized Losses, 12 Months or Longer | 451 | 3,747
Fair Value | 121,608 | 529,967
Unrealized Losses | 1,628 | 5,118
Obligations of U.S. Government sponsored entities |  |
Available-for-sale securities |  |
Fair Value, Less than 12 Months | 20,412 | 18,654
Unrealized Losses, Less than 12 Months | 20 | 76
Fair Value, 12 Months or Longer | 0 | 3,479
Unrealized Losses, 12 Months or Longer | 0 | 8
Fair Value | 20,412 | 22,133
Unrealized Losses | 20 | 84
Obligations of U.S. states and political subdivisions |  |
Available-for-sale securities |  |
Fair Value, Less than 12 Months | 9,750 | 10,456
Unrealized Losses, Less than 12 Months | 60 | 54
Fair Value, 12 Months or Longer | 0 | 2,300
Unrealized Losses, 12 Months or Longer | 0 | 7
Fair Value | 9,750 | 12,756
Unrealized Losses | 60 | 61
U.S. Government agencies |  |
Available-for-sale securities |  |
Fair Value, Less than 12 Months | 43,968 | 54,846
Unrealized Losses, Less than 12 Months | 694 | 489
Fair Value, 12 Months or Longer | 5,627 | 45,999
Unrealized Losses, 12 Months or Longer | 247 | 1,030
Fair Value | 49,595 | 100,845
Unrealized Losses | 941 | 1,519
U.S. Government sponsored entities |  |
Available-for-sale securities |  |
Fair Value, Less than 12 Months | 32,328 | 157,801
Unrealized Losses, Less than 12 Months | 403 | 752
Fair Value, 12 Months or Longer | 7,159 | 233,999
Unrealized Losses, 12 Months or Longer | 68 | 2,635
Fair Value | 39,487 | 391,800
Unrealized Losses | 471 | 3,387
U.S. corporate debt securities |  |
Available-for-sale securities |  |
Fair Value, Less than 12 Months | 0 | 0
Unrealized Losses, Less than 12 Months | 0 | 0
Fair Value, 12 Months or Longer | 2,364 | 2,433
Unrealized Losses, 12 Months or Longer | 136 | 67
Fair Value | 2,364 | 2,433
Unrealized Losses | $ 136 | $ 67

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