CONSOLIDATED CONDENSED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Statement of Comprehensive Income [Abstract]
Net income	$ 32,992	$ 41,056	$ 67,255	$ 79,873
Other comprehensive income (loss), net of tax:
Unrealized holding gain (loss) on securities available for sale arising during the period, net of tax of $3,335, $4,822, $11,406, and $10,402	12,545	18,140	42,909	39,130
Unrealized gain (loss) on cash flow hedges arising during the period, net of tax of $31, $148, $306, and $230	(114)	(553)	(1,153)	(862)
Reclassification adjustment for net gains included in net income, net of tax of $595, $369, $1,538, and $596	(2,242)	(1,390)	(5,785)	(2,244)
Total other comprehensive income, net of tax	10,189	16,197	35,971	36,024
Comprehensive income	$ 43,181	$ 57,253	$ 103,226	$ 115,897