Consolidated Statements of Comprehensive Income (Unaudited) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
INTEREST INCOME
Loans, including fees	$ 42,026	$ 42,074	$ 125,843	$ 121,587
Securities:
Taxable	1,681	2,754	6,175	9,391
Tax-exempt	366	502	1,201	1,734
Federal funds sold			1	41
Interest-bearing deposits with banks	1,071	930	3,105	2,591
Total interest income	45,144	46,260	136,325	135,344
INTEREST EXPENSE
Deposits	3,729	5,159	11,861	17,390
Short-term borrowings	7	26	23	33
Long-term borrowings	84	332	280	833
Junior subordinated debentures	492	525	1,643	1,575
Total interest expense	4,312	6,042	13,807	19,831
Net interest income	40,832	40,218	122,518	115,513
Provision for loan losses	233	885	654	3,686
Net interest income after provision for loan losses	40,599	39,333	121,864	111,827
NONINTEREST INCOME
Trust revenue	1,927	1,779	5,457	4,997
Service charges on deposits	11,896	11,386	33,534	31,587
Securities transactions	385	50	4,643	1,374
Income from sales of loans	737	529	2,075	1,401
Insurance commissions	3,661	2,910	9,457	7,803
Cash management	1,971	1,848	5,951	5,540
Gain on sale of other assets	26	3	369	7
Other	1,513	1,612	4,431	4,817
Total noninterest income	22,116	20,117	65,917	57,526
NONINTEREST EXPENSE
Salaries and employee benefits	24,641	23,845	74,271	68,215
Occupancy and fixed assets expense, net	2,877	2,667	7,800	7,529
Depreciation	2,253	2,117	6,610	5,910
Amortization of intangible assets	457	458	1,371	1,211
Data processing services	1,208	1,302	3,649	3,720
Net expense from other real estate owned	200	965	1,369	834
Marketing and business promotion	1,998	1,550	5,332	4,741
Deposit insurance	745	786	2,188	2,976
Other	8,086	7,569	24,475	22,130
Total noninterest expense	42,465	41,259	127,065	117,266
Income before taxes	20,250	18,191	60,716	52,087
Income tax expense	6,390	5,638	21,122	18,064
Net income	13,860	12,553	39,594	34,023
NET INCOME PER COMMON SHARE
Basic	$ 0.91	$ 0.82	$ 2.61	$ 2.22
Diluted	$ 0.90	$ 0.81	$ 2.57	$ 2.18
OTHER COMPREHENSIVE INCOME
Unrealized gains (losses) on securities, net of tax of $44, $(273), $654, and $(1,232), respectively	(82)	430	(1,214)	2,214
Reclassification adjustment for gains (losses) included in net income, net of tax of 93, $6, $821 and $299, respectively	(172)	(11)	(1,525)	(555)
Other comprehensive income (loss), net of tax of $137, $(267), $1475 and $(933), respectively	(254)	419	(2,739)	1,659
Comprehensive income	$ 13,606	$ 12,972	$ 36,855	$ 35,682