CONSOLIDATED CONDENSED STATEMENT OF STOCKHOLDERS' EQUITY (Unaudited) - USD ($) $ in Thousands	Total	Preferred	Common Stock	Additional Paid in Capital	Retained Earnings	Accumulated Other Comprehensive Income (Loss)
Beginning balance at Dec. 31, 2014						$ (1,630)
Comprehensive income
Net income	$ 34,140
Other comprehensive income, net of tax	(4,860)					(4,860)
Ending balance at Jun. 30, 2015						(6,490)
Beginning balance (in shares) at Dec. 31, 2015		125	40,664,259
Beginning balance at Dec. 31, 2015	850,509	$ 125	$ 5,083	$ 504,530	$ 342,133	(1,362)
Comprehensive income
Net income	37,699				37,699
Other comprehensive income, net of tax	8,397					8,397
Cash dividends on common stock ($.25 per share)	(10,264)				(10,264)
Share-based compensation (in shares)			106,290
Share-based compensation	1,235		$ 13	1,222
Stock issued under employee benefit plans (in shares)			10,536
Stock issued under employee benefit plans	216		$ 1	215
Stock issued under dividend reinvestment and stock purchase plan (in shares)			15,703
Stock issued under dividend reinvestment and stock purchase plan	$ 384		$ 2	382
Stock options exercised (in shares)	13,828		13,828
Stock options exercised	$ 214		$ 2	212
Stock redeemed (in shares)			(37,720)
Stock redeemed	(840)		$ (4)	(836)
Ending balance (in shares) at Jun. 30, 2016		125	40,772,896
Ending balance at Jun. 30, 2016	$ 887,550	$ 125	$ 5,097	$ 505,725	$ 369,568	$ 7,035