Condensed Consolidated Statements of Income and Comprehensive Income (unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Interest income:
Interest and fees on loans, including loans held for sale	$ 32,847	$ 32,191	$ 97,691	$ 95,741
Interest and dividends on securities
Taxable	2,044	2,763	7,007	8,616
Tax exempt	679	664	2,032	1,912
Interest and dividends on Federal Reserve Bank and Federal Home Loan Bank stock	252	252	756	882
Other, including interest on federal funds sold	90	87	234	310
Total interest income	35,912	35,957	107,720	107,461
Interest expense:
Interest on deposits	2,412	2,475	7,077	7,409
Interest on repurchase agreements and other short-term borrowings	231	205	689	614
Interest on advances from Federal Home Loan Bank	9	6	33	17
Interest on long-term debt	295	283	869	850
Total interest expense	2,947	2,969	8,668	8,890
Net interest income	32,965	32,988	99,052	98,571
Provision for loan losses	2,520	3,300	6,740	5,380
Net interest income after provision for loan losses	30,445	29,688	92,312	93,191
Noninterest income:
Service charges on deposit accounts	6,348	6,321	17,976	17,739
Gains on sales of loans, net	462	303	1,575	781
Trust and wealth management income	2,297	2,395	6,902	6,703
Loan related fees	641	1,128	2,747	2,573
Bank owned life insurance	581	523	1,623	1,473
Brokerage revenue	395	505	1,058	1,709
Securities gains (losses)	12	(34)	142	(145)
Other noninterest income	1,299	865	2,976	2,210
Total noninterest income	12,035	12,006	34,999	33,043
Noninterest expense:
Officer salaries and employee benefits	3,288	2,584	9,179	8,206
Other salaries and employee benefits	10,687	10,881	32,063	31,950
Occupancy, net	1,942	2,007	5,937	6,108
Equipment	746	831	2,295	2,669
Data processing	1,577	2,017	5,204	5,875
Bank franchise tax	1,272	1,208	3,816	3,625
Legal fees	505	558	1,604	1,912
Professional fees	524	491	1,497	1,331
FDIC insurance	606	575	1,798	1,782
Other real estate owned provision and expense	1,289	707	2,525	2,948
Repossession expense	347	322	947	863
Other noninterest expense	4,751	3,682	12,800	10,711
Total noninterest expense	27,534	25,863	79,665	77,980
Income before income taxes	14,946	15,831	47,646	48,254
Income taxes	3,724	4,907	13,084	14,995
Net income	11,222	10,924	34,562	33,259
Unrealized holding gains (losses) on securities available-for-sale:
Unrealized holding gains (losses) arising during the period	3,463	(2,009)	3,525	10,642
Less: Reclassification adjustments for realized gains (losses) included in net income	12	(34)	142	(145)
Tax (benefit) expense	1,208	(691)	1,184	3,776
Other comprehensive income (loss), net of tax	2,243	(1,284)	2,199	7,011
Comprehensive income	$ 13,465	$ 9,640	$ 36,761	$ 40,270
Basic earnings per share (in dollars per share)	$ 0.64	$ 0.63	$ 1.98	$ 1.92
Diluted earnings per share (in dollars per share)	$ 0.64	$ 0.63	$ 1.98	$ 1.91
Weighted average shares outstanding-basic (in shares)	17,440	17,326	17,420	17,317
Weighted average shares outstanding-diluted (in shares)	17,491	17,402	17,472	17,395
Dividends declared per share (in dollars per share)	$ 0.310	$ 0.300	$ 0.910	$ 0.881