CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2018	Mar. 31, 2017
Statement of Comprehensive Income [Abstract]
Net income	$ 7,812	$ 4,211
Other comprehensive income (loss), before tax:
Changes in unrealized loss on securities available-for-sale	(10,702)	1,095
Changes in unrealized loss on derivative hedges	654	(338)
Changes in unrealized loss on pension	41	34
Income taxes related to other comprehensive income (loss):
Changes in unrealized loss on securities available-for-sale	2,550	(327)
Changes in unrealized loss on derivative hedges	(155)	198
Changes in unrealized loss on pension	(10)	2
Total other comprehensive (loss) income	(7,622)	664
Total comprehensive income	$ 190	$ 4,875

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

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