Consolidated Statements of Income (unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Interest, fee and dividend income
Interest and fees on loans	$ 77,249	$ 68,086	$ 221,864	$ 197,399
Securities available for sale	6,659	7,278	20,588	21,505
Securities held to maturity	3,462	2,746	8,898	8,263
Other	834	737	2,381	2,010
Total interest, fee and dividend income	88,204	78,847	253,731	229,177
Interest expense
Deposits	6,157	3,648	15,167	10,658
Short-term borrowings	3,000	1,870	7,421	4,375
Long-term debt	431	589	1,359	1,794
Junior subordinated debt	1,089	810	3,030	2,308
Total interest expense	10,677	6,917	26,977	19,135
Net interest income	77,527	71,930	226,754	210,042
Provision for loan losses	6,026	7,889	22,300	22,835
Net interest income after provision for loan losses	71,501	64,041	204,454	187,207
Noninterest income
Insurance and other financial services revenue	6,172	5,536	18,502	17,927
Service charges on deposit accounts	4,503	4,261	12,721	12,399
ATM and debit card fees	5,906	5,557	16,995	16,025
Retirement plan administration fees	7,244	5,272	19,879	14,881
Trust	4,808	4,927	14,951	14,620
Bank owned life insurance	1,288	1,284	3,852	3,913
Net securities gains (losses)	412	(4)	575	(2)
Other	3,048	3,945	11,341	10,069
Total noninterest income	33,381	30,778	98,816	89,832
Noninterest expense
Salaries and employee benefits	38,394	33,674	112,687	101,410
Occupancy	5,380	5,174	17,034	16,528
Data processing and communications	4,434	4,399	13,221	12,826
Professional fees and outside services	3,580	3,107	10,408	9,748
Equipment	4,319	3,733	12,508	11,224
Office supplies and postage	1,563	1,432	4,640	4,680
FDIC expenses	1,223	1,257	3,516	3,571
Advertising	739	665	1,776	1,711
Amortization of intangible assets	1,054	993	3,064	2,999
Loan collection and other real estate owned, net	1,234	1,684	3,479	3,627
Other	4,577	4,483	13,324	13,880
Total noninterest expense	66,497	60,601	195,657	182,204
Income before income tax expense	38,385	34,218	107,613	94,835
Income tax expense	8,578	11,342	23,699	30,321
Net income	$ 29,807	$ 22,876	$ 83,914	$ 64,514
Earnings per share
Basic (in dollars per share)	$ 0.68	$ 0.52	$ 1.92	$ 1.48
Diluted (in dollars per share)	$ 0.68	$ 0.52	$ 1.91	$ 1.47