Other Income And Other Expense (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
All other income and commissions:
Other service charges	$ 2,984	$ 2,713
ATM interchange fees	2,778	2,958
Deferred compensation	1,827	329
Electronic banking fees	1,323	1,397
Mortgage banking	1,261	1,273
Letter of credit fees	1,036	1,061
Insurance commissions	883	487
Other	2,299	3,071
Total	14,391	13,289
All other expense:
Other insurance and taxes	2,390	3,313
Travel and entertainment	2,348	2,062
Employee training and dues	1,543	1,390
Customer relations	1,336	1,879
Tax credit investments	942	706
Supplies	863	1,026
Miscellaneous loan costs	622	717
Foreclosed real estate	204	(258)
Litigation and regulatory matters	(292)	(475)
Other	8,831	11,719
Total	$ 18,787	$ 22,079