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Recent Accounting Pronouncements Recent Accounting Pronouncements (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2020 | Dec. 31, 2018 | Dec. 31, 2017
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification |  | $ 0 | $ 0
Retained Earnings [Member] | Minimum | Forecast [Member] | Accounting Standards Update 2016-13 [Member] |  |  |
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification | $ 2,300 |  |
Retained Earnings [Member] | Maximum | Forecast [Member] | Accounting Standards Update 2016-13 [Member] |  |  |
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification | 4,100 |  |
Loans [Member] | Minimum | Forecast [Member] | Accounting Standards Update 2016-13 [Member] |  |  |
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification | 2,200 |  |
Loans [Member] | Maximum | Forecast [Member] | Accounting Standards Update 2016-13 [Member] |  |  |
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification | $ 3,200 |  |

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