Revenue Recognition Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Revenue from Contract with Customer [Abstract]
Service Charges on Deposit Accounts	$ 4,551	$ 4,392	$ 8,982	$ 8,936
Merchant Discount Fees	3,919	3,561	7,324	6,682
ATM Fees	736	759	1,390	1,446
Wealth management and advisory services	6,083	5,488	11,665	10,625
Fees and Commissions Investment Management	739	507	1,299	984
Merchant Processing Income	348	274	779	567
Other noninterest income - ASC 606	1,060	1,259	2,034	2,081
Total noninterest income in scope of ASC 606	17,436	16,240	33,473	31,321
Total noninterest income out of scope of ASC 606	4,451	5,158	8,277	8,989
Noninterest Income	$ 21,887	$ 21,398	$ 41,750	$ 40,310