v3.8.0.1

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended												12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Statement Of Income And Comprehensive Income [Abstract]
Net income	$ 2,273	$ 9,580	$ 9,616	$ 6,113	$ 6,517	$ 9,675	$ 3,324	$ 3,787	$ 5,048	$ 2,762	$ 2,942	$ 2,626	$ 27,582	$ 23,303	$ 13,378
Other comprehensive income (loss):
Unrealized holding gains (losses) on securities arising during the period													1,717	(6,697)	(3,746)
Other comprehensive income (loss) before tax													1,717	(6,697)	(3,746)
Income tax (expense) benefit related to items of other comprehensive income													(707)	2,122	1,542
Other comprehensive income (loss)													1,010	(4,575)	(2,204)
Less: Reclassification adjustment for gains (loss) included in net earnings														1,043
Income tax (expense) benefit related to reclassification adjustment														(409)
Reclassification adjustment for gains included in net earnings, net of tax														634
Other comprehensive income (loss), net of tax													1,010	(3,941)	(2,204)
Total comprehensive income													$ 28,592	$ 19,362	$ (2,204)

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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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