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Securities Securities - Amortized Cost and Fair Value of Securities (Details) - USD ($) $ in Thousands | Dec. 31, 2019 | Dec. 31, 2018
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Debt Securities, Held-to-maturity, Fair Value to Amortized Cost [Abstract] |  |
Amortized Cost | $ 188,996 | $ 194,282
Debt Securities, Held-to-maturity, Accumulated Unrecognized Gain | 12,221 | 152
Debt Securities, Held-to-maturity, Accumulated Unrecognized Loss | 0 | 1,303
Fair Value | 201,217 | 193,131
Debt Securities, Held-to-maturity, Maturity, Amortized Cost, Net [Abstract] |  |
Due in one year or less | 1,062 |
Due in one year to five years | 0 |
Due in five to ten years | 5,772 |
Due after ten years | 182,162 |
Mortgage-backed securities | 0 |
Asset-backed securities | 0 |
Amortized Cost | 188,996 | 194,282
Debt Securities, Held-to-maturity, Maturity, Fair Value [Abstract] |  |
Due in one year or less | 1,062 |
Due in one year to five years | 0 |
Due in five to ten years | 5,860 |
Due after ten years | 194,295 |
Mortgage-backed securities | 0 |
Asset-backed securities | 0 |
Fair Value | 201,217 | 193,131
State And Municipal Securities |  |
Debt Securities, Held-to-maturity, Fair Value to Amortized Cost [Abstract] |  |
Amortized Cost | 188,996 | 194,282
Debt Securities, Held-to-maturity, Accumulated Unrecognized Gain | 12,221 | 152
Debt Securities, Held-to-maturity, Accumulated Unrecognized Loss | 0 | 1,303
Fair Value | 201,217 | 193,131
Debt Securities, Held-to-maturity, Maturity, Amortized Cost, Net [Abstract] |  |
Amortized Cost | 188,996 | 194,282
Debt Securities, Held-to-maturity, Maturity, Fair Value [Abstract] |  |
Fair Value | $ 201,217 | $ 193,131

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