Consolidated Statements of Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Interest Income
Loans	$ 75,579	$ 71,651	$ 149,699	$ 141,967
Taxable securities	9,468	8,829	20,454	16,846
Tax-exempt securities	2,716	2,795	5,407	5,598
Deposits in banks	23	28	42	66
Total interest income	87,786	83,303	175,602	164,477
Interest Expense
Deposits	908	787	1,695	1,529
Federal Home Loan Bank advances	591	241	816	365
Other borrowings	126	135	255	273
Total interest expense	1,625	1,163	2,766	2,167
Net Interest Income	86,161	82,140	172,836	162,310
Provision for loan and lease losses	3,177	3,640	5,952	8,894
Net interest income after provision for loan and lease losses	82,984	78,500	166,884	153,416
Noninterest Income
Deposit account and treasury management fees	7,396	7,093	14,683	14,082
Card revenue	6,202	6,051	11,925	11,703
Financial services and trust revenue	3,036	2,780	5,875	5,601
Loan revenue	2,989	2,802	6,582	5,064
Merchant processing revenue	2,264	2,272	4,283	4,374
Bank owned life insurance	1,433	1,270	2,713	2,386
Investment securities gains	0	229	0	602
Change in FDIC loss-sharing asset	(173)	(990)	(447)	(2,093)
Other	988	433	3,380	867
Total noninterest income	24,135	21,940	48,994	42,586
Noninterest Expense
Compensation and employee benefits	38,393	37,291	79,218	73,610
Occupancy	7,577	7,652	14,768	17,825
Merchant processing expense	1,147	1,118	2,196	2,151
Advertising and promotion	1,137	1,043	1,954	1,885
Data processing	4,741	3,929	8,949	8,075
Legal and professional fees	2,947	1,777	6,316	3,102
Taxes, licenses and fees	748	1,298	1,989	2,588
Regulatory premiums	741	1,068	1,517	2,209
Net cost (benefit) of operation of other real estate owned	(1)	84	151	188
Amortization of intangibles	1,249	1,483	2,598	3,066
Other	10,188	7,047	18,197	14,165
Total noninterest expense	68,867	63,790	137,853	128,864
Income before income taxes	38,252	36,650	78,025	67,138
Income tax provision	11,120	11,245	21,694	20,474
Net Income	$ 27,132	$ 25,405	$ 56,331	$ 46,664
Earnings per common share
Basic ($ per share)	$ 0.47	$ 0.44	$ 0.97	$ 0.80
Diluted ($ per share)	0.47	0.44	0.97	0.80
Dividends paid per common share	$ 0.22	$ 0.37	$ 0.44	$ 0.75
Weighted average number of common shares outstanding	57,520	57,185	57,437	57,149
Weighted average number of diluted common shares outstanding	57,525	57,195	57,442	57,160