CONSOLIDATED STATEMENTS OF INCOME - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Interest income
Loans, including fees	$ 66,868	$ 63,399
Investment securities
Taxable	11,608	11,373
Tax-exempt	1,353	1,162
Total interest on investment securities	12,961	12,535
Other earning assets	(1,001)	(1,139)
Total interest income	78,828	74,795
Interest expense
Deposits	6,925	5,530
Short-term borrowings	1,432	1,170
Long-term borrowings	1,539	1,540
Total interest expense	9,896	8,240
Net interest income	68,932	66,555
Provision for loan and lease losses	367	1,655
Net interest income after provision for loan and lease losses	68,565	64,900
Noninterest income
Service charges on deposit accounts	4,644	4,381
Trust and wealth management fees	3,747	3,440
Bankcard income	3,135	2,882
Client derivative fees	1,103	1,095
Net gains from sales of loans	1,216	1,181
Net gains on sales of investment securities	516	24
Other	3,003	2,509
Total noninterest income	17,364	15,512
Noninterest expenses
Salaries and employee benefits	31,750	29,615
Net occupancy	4,515	4,957
Furniture and equipment	2,177	2,213
Data processing	3,298	2,718
Marketing	510	1,065
Communication	447	481
Professional services	1,758	1,813
State intangible tax	721	639
FDIC assessments	932	1,132
Loss (gain) - other real estate owned	24	(190)
Other	4,913	6,277
Total noninterest expenses	51,045	50,720
Income before income taxes	34,884	29,692
Income tax expense	10,470	9,878
Net income	$ 24,414	$ 19,814
Earnings per common share
Basic	$ 0.40	$ 0.32
Diluted	0.39	0.32
Cash dividends declared per share	$ 0.17	$ 0.16
Average common shares outstanding - basic	61,398,414	61,036,797
Average common shares outstanding - diluted	62,140,384	61,840,247