Other Income And Other Expense (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
All other income and commissions:
ATM interchange fees	$ 3,137	$ 3,081	$ 8,998	$ 8,918
Other service charges	2,954	3,004	9,047	8,713
Mortgage banking	1,354	5,524	3,883	7,395
Electronic banking fees	1,282	1,398	3,911	4,176
Letter of credit fees	1,211	981	3,369	3,157
Deferred compensation	1,128	1,038	4,446	2,162
Insurance commissions	567	1,262	2,042	2,301
Gain/(loss) on extinguishment of debt	(14,329)	0	(14,329)	0
Other	2,739	5,518	7,684	10,594
Total	43	21,806	29,051	47,416
All other expense:
Litigation and regulatory matters	8,162	260	8,403	25,785
Travel and entertainment	2,798	2,478	8,308	7,035
Other insurance and taxes	2,396	2,625	7,229	8,952
Customer relations	1,361	1,442	4,240	4,804
Employee training and dues	1,198	1,360	4,194	4,088
Supplies	928	1,158	2,884	3,114
Tax credit investments	762	788	2,646	2,325
Miscellaneous loan costs	757	676	2,078	1,958
OREO	303	815	953	125
Other	9,033	8,326	29,954	30,669
Total	$ 27,698	$ 19,928	$ 70,889	$ 88,855