CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands		3 Months Ended			9 Months Ended
		Sep. 30, 2017	Jun. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Statement of Comprehensive Income [Abstract]
Net income		$ 20,232	$ 14,176	$ 9,227	$ 43,929	$ 28,152
Other comprehensive income, net of tax:
Unrealized holding gains/(loss) on securities arising during the period, net of income taxes	[1]	(196)	6,336	(441)	7,153	2,071
Reclassification adjustment for net (gains)/losses on sale of securities included in net income, net of income taxes	[2]	(588)	(1,368)	(296)	(1,956)	(1,040)
Other comprehensive income, net of tax		(784)	4,968	(737)	5,197	1,031
Comprehensive income, net of tax		$ 19,448	$ 19,144	$ 8,490	$ 49,126	$ 29,183

[1] Income tax (benefit) on the unrealized gains (losses) on securities was $(253,000) for the three months ended September 30, 2017, $4.3 million for the three months ended June 30, 2017, $(366,000) for the three months ended September 30, 2016, $4.7 million for the nine months ended September 30, 2017 and $1.5 million for the nine months ended September 30, 2016.

[2] Income tax (benefit) on the reclassification adjustment for net (gains) losses on sale of securities included in net income was $308,000 for the three months ended September 30, 2017, $725,000 for the three months ended June 30, 2017, $216,000 for the three months ended September 30, 2016, $1,033,000 for the nine months ended September 30, 2017 and $756,000 for the nine months ended September 30, 2016.