Condensed Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Net Income	$ 21,283	$ 17,196	$ 51,184	$ 41,676
Other comprehensive income (loss), before tax (expense) benefit:
Unrealized holding gains (losses) on securities arising during the period	1,690	(751)	5,935	13,121
Less: reclassification adjustment for gains on securities included in net income	(92)	0	(695)	(28)
Unrealized holding (losses) gains on derivatives arising during the period	(49)	(1,056)	(631)	1,038
Less: reclassification adjustment for losses (gains) on derivatives included in net income	20	(16)	93	(57)
Total other comprehensive income (loss), before tax (expense) benefit	1,569	(1,823)	4,702	14,074
Income tax (expense) benefit related to items of other comprehensive income (loss)	(549)	638	(1,646)	(4,926)
Total other comprehensive income (loss)	1,020	(1,185)	3,056	9,148
Comprehensive Income	$ 22,303	$ 16,011	$ 54,240	$ 50,824