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Securities (Details 1) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Amortized Cost
Due in one year or less	$ 4,322
Due after one but within five years	38,062
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, after Five Through Ten Years, Amortized Cost	61,454
Due after ten years	155,478
Total of securities having specified maturity period	259,316
TOTAL	781,073	$ 793,084
Debt Securities, Available-for-sale, Maturity, without Single Maturity Date, Amortized Cost	521,757
Fair Value
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, within One Year, Fair Value	4,344
Due after one but within five years	38,748
Due after five but within ten years	62,846
Due after ten years	162,553
Total of securities having specified maturities period	268,491
Debt Securities, Available-for-sale, Maturity, without Single Maturity Date, Fair Value	517,720
Securities available-for-sale	$ 786,211	$ 784,916

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Amount of available-for-sale debt securities at cost, net of adjustments, that have a single maturity date and which the entity has decided to disclose separately rather than allocating the cost over several maturity groupings. Adjustments include, but are not limited to, accretion, amortization, collection of cash, previous other-than-temporary impairments (OTTI) recognized in earnings (less any cumulative-effect adjustments, as defined) and fair value hedge accounting adjustments.

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