CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME
Net income	$ 10,626	$ 9,109	$ 28,323	$ 25,181
Unrealized net gains (losses) on securities:
Unrealized net holding gains (losses) arising during period	2,512	(2,980)	1,661	2,099
Reclassification adjustment for losses (gains) included in net income			21	(40)
Other comprehensive income (loss), before tax	2,512	(2,980)	1,682	2,059
Income tax expense (benefit) related to items of other comprehensive income	1,005	(1,227)	673	848
Other comprehensive income (loss), net of tax	1,507	(1,753)	1,009	1,211
Comprehensive income	$ 12,133	$ 7,356	$ 29,332	$ 26,392