Consolidated Statements of Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Interest and fees on loans and leases:
Taxable	$ 86,792	$ 62,521	$ 63,173
Exempt from federal income taxes	6,452	5,684	4,777
Total interest and fees on loans and leases	93,244	68,205	67,950
Interest and dividends on investment securities:
Taxable	4,671	3,989	5,432
Exempt from federal income taxes	3,447	3,610	4,071
Interest on federal funds sold	2	0	0
Other interest income	95	81	126
Total interest income	101,459	75,885	77,579
Interest expense
Interest on demand deposits	1,474	545	478
Interest on savings deposits	533	317	313
Interest on time deposits	4,000	3,102	3,795
Interest on short-term borrowings	35	32	48
Interest on long-term borrowings	2,023	0	483
Total interest expense	8,065	3,996	5,117
Net interest income	93,394	71,889	72,462
Provision for loan and lease losses	3,802	3,607	11,228
Net interest income after provision for loan and lease losses	89,592	68,282	61,234
Noninterest income
Trust fee income	7,908	7,835	7,303
Service charges on deposit accounts	4,230	4,230	4,451
Investment advisory commission and fee income	10,773	11,904	7,642
Insurance commission and fee income	13,885	11,543	9,395
Other service fee income	7,379	7,189	7,390
Bank owned life insurance income	1,295	1,628	2,968
Net gain on sales of investment securities	1,265	635	3,389
Net gain on mortgage banking activities	4,838	2,182	4,523
Net gain on sales and write-downs of other real estate owned	14	195	626
Loss on termination of interest rate swap	0	0	(1,866)
Other income	1,362	1,310	963
Total noninterest income	52,949	48,651	46,784
Noninterest expense
Salaries and benefits	50,069	42,245	39,522
Commissions	8,037	7,637	8,512
Net occupancy	8,430	7,023	5,869
Equipment	7,181	5,645	4,865
Professional fees	3,839	3,164	3,471
Marketing and advertising	2,253	1,880	1,948
Deposit insurance premiums	1,730	1,561	1,553
Intangible expenses	2,567	2,167	157
Acquisition-related costs	1,047	1,270	87
Integration costs	1,490	8	0
Restructuring charges	1,642	0	534
Other expense	17,230	14,654	14,615
Total noninterest expense	105,515	87,254	81,133
Income before income taxes	37,026	29,679	26,885
Income taxes	9,758	7,448	5,696
Net income	$ 27,268	$ 22,231	$ 21,189
Net income per share:
Basic (in dollars per share)	$ 1.39	$ 1.37	$ 1.28
Diluted (in dollars per share)	1.39	1.37	1.28
Dividends declared	$ 0.80	$ 0.80	$ 0.80