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Condensed Consolidated Statement of Stockholders' Equity - 6 months ended Jun. 30, 2018 - USD ($) $ in Thousands	Total	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Loss [Member]
Beginning Balances at Dec. 31, 2017	$ 457,078	$ 275,059	$ 185,570	$ (3,551)
Net income	26,919		26,919
Other comprehensive loss, net of tax	(6,270)			(6,270)
Amortization of unearned compensation	(79)	(79)
Exercise of stock options	444	444
Stock option expense	163	163
Reclassification of tax adjustment on accumulated other comprehensive loss			766	(766)
Cash dividends on common stock	(7,720)		(7,720)
Ending Balances at Jun. 30, 2018	$ 470,535	$ 275,587	$ 205,535	$ (10,587)

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