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Investment Securities Schedule of Held-to-Maturity Securities (Details) - USD ($) $ in Thousands | Mar. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Schedule of Held-to-maturity Securities [Line Items] |  |
Due within 1 year | $ 1,019 |
Debt Securities, Held-to-maturity, Maturity, Allocated and Single Maturity Date, within One Year, Fair Value | 1,023 |
Debt Securities, Held-to-maturity, Accumulated Unrecognized Gain | 9,336 | $ 2,073
Debt Securities, Held-to-maturity | 318,256 | 337,123
Securities held to maturity, fair value | 327,592 | $ 338,718
Due after 1 but within 5 years | 10,428 |
Due after 5 but within 10 years | 26,617 |
Debt Securities, Held-to-maturity, Maturity, Allocated and Single Maturity Date, after Five Through Ten Years, Fair Value | 27,039 |
Debt Securities, Held-to-maturity, Maturity, Allocated and Single Maturity Date, after One Through Five Years, Fair Value | 10,533 |
Due after 10 years | 0 |
Debt Securities, Held-to-maturity, Maturity, Allocated and Single Maturity Date, after 10 Years, Fair Value | 0 |
Debt Securities, Held-to-maturity, Maturity, Allocated and Single Maturity Date, Amortized Cost | 38,064 |
Debt Securities, Held-to-maturity, Maturity, Allocated and Single Maturity Date, Fair Value | 38,595 |
Debt Securities, Held-to-maturity, Maturity, without Single Maturity Date, Amortized Cost | 280,192 |
Debt Securities, Held-to-maturity, Maturity, without Single Maturity Date, Fair Value | 288,997 |
US Government Agencies Residential Mortgage-backed Securities [Member] |  |
Schedule of Held-to-maturity Securities [Line Items] |  |
Debt Securities, Held-to-maturity | 51,900 |
Securities held to maturity, fair value | 52,500 |
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member] |  |
Schedule of Held-to-maturity Securities [Line Items] |  |
Debt Securities, Held-to-maturity | 228,300 |
Securities held to maturity, fair value | $ 236,500 |

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