CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands		3 Months Ended			9 Months Ended
		Sep. 30, 2016	Jun. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Statement of Comprehensive Income [Abstract]
Net income		$ 9,227	$ 10,369	$ 7,837	$ 28,152	$ 17,450
Other comprehensive income, net of tax:
Unrealized holding gains (losses) on securities arising during the period, net of income taxes (benefits)	[1]	(441)	947	1,126	2,071	333
Reclassification adjustment for net gain on sale of securities included in net income, net of income taxes	[2]	(296)	(308)	(22)	(1,040)	(172)
Net unrealized gain on securities, net of income taxes		(737)	639	1,104	1,031	161
Comprehensive income		$ 8,490	$ 11,008	$ 8,941	$ 29,183	$ 17,611

[1] Income tax (benefit) on the unrealized gains (losses) on securities was $(0.4) million for the three months ended September 30, 2016, $0.7 million for the three months ended June 30, 2016, $0.8 million for the three months ended September 30, 2015, $1.5 million for the nine months ended September 30, 2016 and $2.2 million for the nine months ended September 30, 2015.

[2] Income tax (benefit) on the reclassification adjustment for net (gains) losses on sale of securities included in net income was $0.2 million for the three months ended September 30, 2016, $0.2 million for the three months ended June 30, 2016, $16,000 for the three months ended September 30, 2015, $0.8 million for the nine months ended September 30, 2016 and $0.1 million for the nine months ended September 30, 2015.