Consolidated Statements of Income (unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Interest, fee, and dividend income
Interest and fees on loans	$ 62,449	$ 59,873	$ 123,679	$ 119,391
Securities available for sale	5,976	5,144	11,963	10,089
Securities held to maturity	2,496	2,315	4,784	4,598
Other	454	395	903	875
Total interest, fee, and dividend income	71,375	67,727	141,329	134,953
Interest expense
Deposits	3,605	3,517	7,202	7,090
Short-term borrowings	579	144	907	265
Long-term debt	773	836	1,606	1,662
Junior subordinated debt	641	545	1,260	1,085
Total interest expense	5,598	5,042	10,975	10,102
Net interest income	65,777	62,685	130,354	124,851
Provision for loan losses	4,780	3,898	10,878	7,540
Net interest income after provision for loan losses	60,997	58,787	119,476	117,311
Noninterest income
Insurance and other financial services revenue	5,625	5,836	12,571	12,210
Service charges on deposit accounts	4,166	4,285	8,105	8,357
ATM and debit card fees	4,934	4,679	9,517	8,927
Retirement plan administration fees	4,054	3,566	7,808	6,762
Trust	4,937	5,196	9,313	9,646
Bank owned life insurance	1,271	928	2,562	2,487
Net securities gains	1	26	30	40
Other	4,626	3,699	8,075	6,320
Total noninterest income	29,614	28,215	57,981	54,749
Noninterest expense
Salaries and employee benefits	32,931	30,831	65,372	61,013
Occupancy	5,254	5,412	10,745	11,478
Data processing and communications	4,121	4,288	8,171	8,391
Professional fees and outside services	3,331	3,395	6,562	6,892
Equipment	3,547	3,316	7,007	6,565
Office supplies and postage	1,676	1,627	3,223	3,246
FDIC expenses	1,293	1,280	2,551	2,478
Advertising	595	734	1,099	1,453
Amortization of intangible assets	928	1,187	2,024	2,471
Loan collection and other real estate owned, net	845	22	1,550	894
Other	5,924	5,872	10,365	10,785
Total noninterest expense	60,445	57,964	118,669	115,666
Income before income tax expense	30,166	29,038	58,788	56,394
Income tax expense	10,257	9,757	19,988	18,947
Net income	$ 19,909	$ 19,281	$ 38,800	$ 37,447
Earnings per share
Basic (in dollars per share)	$ 0.46	$ 0.44	$ 0.90	$ 0.85
Diluted (in dollars per share)	$ 0.46	$ 0.43	$ 0.89	$ 0.84