Consolidated Statements of 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, fee, and dividend income
Interest and fees on loans and leases	$ 53,817	$ 50,991	$ 154,534	$ 152,977
Securities available for sale	6,550	7,771	21,024	23,622
Securities held to maturity	572	680	1,829	2,225
Other	348	342	1,153	1,275
Total interest, fee, and dividend income	61,287	59,784	178,540	180,099
Interest expense
Deposits	4,544	5,352	14,521	17,690
Short-term borrowings	60	56	149	166
Long-term debt	3,640	3,621	10,801	10,783
Trust preferred debentures	436	394	1,319	1,683
Total interest expense	8,680	9,423	26,790	30,322
Net interest income	52,607	50,361	151,750	149,777
Provision for loan and lease losses	4,755	5,175	13,329	15,161
Net interest income after provision for loan and lease losses	47,852	45,186	138,421	134,616
Noninterest income
Insurance and other financial services revenue	5,591	5,127	17,024	15,925
Service charges on deposit accounts	4,626	5,532	13,538	16,059
ATM and debit card fees	3,378	3,135	9,403	8,731
Retirement plan administration fees	2,718	2,295	7,462	6,734
Trust	2,242	2,090	6,683	6,384
Bank owned life insurance	639	674	2,228	2,369
Net securities gains	26	12	578	98
Other	2,407	1,329	8,449	3,881
Total noninterest income	21,627	20,194	65,365	60,181
Noninterest expense
Salaries and employee benefits	26,641	25,068	78,358	74,107
Occupancy	4,437	3,887	13,150	12,396
Data processing and communications	3,352	3,054	10,041	9,085
Professional fees and outside services	2,735	2,215	7,848	6,369
Equipment	2,435	2,288	7,224	6,658
Office supplies and postage	1,597	1,531	4,842	4,418
FDIC expenses	939	920	2,812	3,381
Advertising	701	685	2,308	2,286
Amortization of intangible assets	870	782	2,530	2,286
Loan collection and other real estate owned	614	676	2,051	1,838
Merger expenses	558	155	1,895	155
Other	4,552	3,785	12,236	10,285
Total noninterest expense	49,431	45,046	145,295	133,264
Income before income tax expense	20,048	20,334	58,491	61,533
Income tax expense	5,513	5,117	17,049	17,354
Net income	$ 14,535	$ 15,217	$ 41,442	$ 44,179
Earnings per share
Basic (in dollars per share)	$ 0.43	$ 0.46	$ 1.24	$ 1.30
Diluted (in dollars per share)	$ 0.43	$ 0.45	$ 1.23	$ 1.29