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Securities - Schedule of Held-to-maturity Securities with Unrealized Losses (Details) - USD ($) | Sep. 30, 2021 | Dec. 31, 2020
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Held-to-maturity debt securities |  |
Fair Value, Less than 12 Months | $ 115,263,000 |
Unrealized Losses, Less than 12 Months | 2,099,000 |
Fair Value, 12 Months or Longer | 0 |
Unrealized Losses, 12 Months or Longer | 0 |
Fair Value | 115,263,000 |
Unrealized Losses | 2,099,000 | $ 0
U.S. Treasuries |  |
Held-to-maturity debt securities |  |
Fair Value, Less than 12 Months | 35,277,000 |
Unrealized Losses, Less than 12 Months | 630,000 |
Fair Value, 12 Months or Longer | 0 |
Unrealized Losses, 12 Months or Longer | 0 |
Fair Value | 35,277,000 |
Unrealized Losses | 630,000 |
Obligations of U.S. Government sponsored entities |  |
Held-to-maturity debt securities |  |
Fair Value, Less than 12 Months | 79,986,000 |
Unrealized Losses, Less than 12 Months | 1,469,000 |
Fair Value, 12 Months or Longer | 0 |
Unrealized Losses, 12 Months or Longer | 0 |
Fair Value | 79,986,000 |
Unrealized Losses | $ 1,469,000 |

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