CONSOLIDATED CONDENSED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Statement of Comprehensive Income [Abstract]
Net income	$ 21,059	$ 17,067	$ 58,758	$ 51,207
Other comprehensive income net of tax:
Unrealized holding gain (loss) on securities available for sale arising during the period, net of tax of $1,627, $2,439, $4,234 and $63	(3,022)	4,530	7,863	117
Unrealized gain (loss) on cash flow hedges arising during the period, net of tax of $134, $627, $835 and $792	250	(1,164)	(1,548)	(1,468)
Reclassification adjustment for net gains included in net income, net of tax of $183, $263, $554 and $340	(339)	(490)	(1,029)	(633)
Period change	(3,111)	2,876	5,286	(1,984)
Comprehensive income	$ 17,948	$ 19,943	$ 64,044	$ 49,223