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Securities (Schedule of Securities by Contractual Maturity) (Details) - USD ($) $ in Thousands | Dec. 31, 2018 | Dec. 31, 2017
--- | --- | ---
Securities Available-for-Sale: Amortized cost |  |
Due in one year or less | $ 2,195 |
Due after one year through five years | 16,401 |
Due after five years through ten years | 82,449 |
Due after ten years | 190,404 |
Amortized Cost | 821,254 | $ 743,642
Securities Available-for-Sale: Fair Value |  |
Due in one year or less | 2,202 |
Due after one year through five years | 16,689 |
Due after five years through ten years | 84,085 |
Due after ten years | 191,557 |
Fair Value | 812,611 | 740,641
MBS/CMO – Residential |  |
Securities Available-for-Sale: Amortized cost |  |
Amortized cost, MBS/CMO - Residential | 529,805 |
Amortized Cost | 529,805 | 476,205
Securities Available-for-Sale: Fair Value |  |
Fair value, MBS/CMO - Residential | 518,078 |
Fair Value | $ 518,078 | $ 467,332

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