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

Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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