Securities (Schedule of Securities by Contractual Maturity) (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Amortized Cost
Due in one year or less	$ 3,374
Due after one year through five years	19,203
Due after five years through ten years	64,814
Due after ten years	221,668
Amortized Cost	838,923	$ 834,850
Fair Value
Due in one year or less	3,378
Due after one year through five years	19,593
Due after five years through ten years	68,114
Due after ten years	235,779
Fair Value	875,787	854,825
MBS/CMO
Amortized Cost
MBS/CMO	529,864
Amortized Cost	529,864	526,907
Fair Value
MBS/CMO	548,923
Fair Value	$ 548,923	$ 530,525

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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