Consolidated Condensed Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Net Income	$ 22,112	$ 27,449	$ 61,411	$ 66,133
Other comprehensive income, net of tax:
Unrealized net holding gain (loss) on securities available-for-sale, net of federal income tax effect of $380 and $(1,174) for the three months ended September 30, 2017 and 2016, and $2,551 and $7,459 for the nine months ended September 30, 2017 and 2016, respectively	707	(2,182)	4,740	13,850
Other comprehensive income (loss)	707	(2,182)	4,740	13,850
Comprehensive income	$ 22,819	$ 25,267	$ 66,151	$ 79,983