Consolidated Statements of Comprehensive Income (Unaudited) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
INTEREST INCOME
Loans, including fees	$ 41,857	$ 40,256	$ 83,817	$ 79,513
Securities:
Taxable	2,087	3,011	4,494	6,637
Tax-exempt	411	602	835	1,232
Federal funds sold		20	1	41
Interest-bearing deposits with banks	1,061	886	2,034	1,661
Total interest income	45,416	44,775	91,181	89,084
INTEREST EXPENSE
Deposits	3,883	5,986	8,132	12,231
Short-term borrowings	8	3	16	7
Long-term borrowings	91	255	196	501
Junior subordinated debentures	565	525	1,151	1,050
Total interest expense	4,547	6,769	9,495	13,789
Net interest income	40,869	38,006	81,686	75,295
Provision for loan losses	248	2,013	421	2,801
Net interest income after provision for loan losses	40,621	35,993	81,265	72,494
NONINTEREST INCOME
Trust revenue	1,823	1,631	3,530	3,218
Service charges on deposits	11,031	10,449	21,638	20,201
Securities transactions	226	1,316	4,258	1,324
Income from sales of loans	766	420	1,338	872
Insurance commissions	2,803	2,471	5,796	4,893
Cash management	2,041	1,927	3,980	3,692
Loss on sale of other assets	323	(5)	343	4
Other	1,351	1,470	2,918	3,205
Total noninterest income	20,364	19,679	43,801	37,409
NONINTEREST EXPENSE
Salaries and employee benefits	24,830	22,557	49,630	44,369
Occupancy and fixed assets expense, net	2,477	2,411	4,923	4,862
Depreciation	2,226	1,889	4,357	3,793
Amortization of intangible assets	457	377	914	754
Data processing services	1,158	1,168	2,441	2,418
Net expense from other real estate owned	922	775	1,169	(131)
Marketing and business promotion	1,679	1,653	3,334	3,191
Deposit insurance	724	764	1,443	2,190
Other	8,090	8,016	16,389	14,561
Total noninterest expense	42,563	39,610	84,600	76,007
Income before taxes	18,422	16,062	40,466	33,896
Income tax expense	(6,693)	(5,947)	(14,732)	(12,426)
Net income	11,729	10,115	25,734	21,470
NET INCOME PER COMMON SHARE
Basic	$ 0.77	$ 0.66	$ 1.70	$ 1.40
Diluted	$ 0.76	$ 0.65	$ 1.67	$ 1.37
OTHER COMPREHENSIVE INCOME
Unrealized gains (losses) on securities, net of tax of $292, $(1,034), $610 and $(959), respectively	(541)	1,976	(1,132)	1,784
Reclassification adjustment for gains included in net income, net of tax of $5, $293, $728 and $293, respectively	(11)	(544)	(1,353)	(544)
Other comprehensive income (loss), net of tax of $297, $(741), $1,338 and $(666), respectively	(552)	1,432	(2,485)	1,240
Comprehensive income	$ 11,177	$ 11,547	$ 23,249	$ 22,710