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Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Consolidated Statements of Comprehensive Income
Net income	$ 34,012	$ 15,138	$ 15,684
Unrealized holding (losses) gains on available-for-sale securities arising during the period	(9,053)	17,863	(1,155)
Related tax benefit (expense)	2,554	(7,183)	445
Holding (losses) gains after tax on available-for-sale securities	(6,499)	10,680	(710)
Less: Reclassification adjustment for the net gains (losses) realized during the period
Net realized gains (losses)	360	474	(2,213)
Related tax (expense) benefit	(100)	(198)	882
Net realized gains (losses) after tax	260	276	(1,331)
Other comprehensive (loss) income on available-for-sale securities	(6,759)	10,404	621
Accretion of net unrealized holding gains on held-to-maturity transferred from available-for-sale securities			5,939
Related tax expense			(2,446)
Other comprehensive income on held-to-maturity securities			3,493
Changes in fair value of derivatives used for cashflow hedges	1,230	(293)	(363)
Related tax (expense) benefit	(348)	130	146
Other comprehensive income on cashflow hedges	882	(163)	(217)
Total other comprehensive (loss) income	(5,877)	10,241	3,897
Total comprehensive income	$ 28,135	$ 25,379	$ 19,581

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