Condensed Consolidated Statements of Income (USD $) In Thousands, except Per Share data	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
Interest income:
Loans, including fees	$ 40,994	$ 35,994	$ 77,824	$ 70,167
Investment securities:
Taxable	1,741	2,740	3,598	5,254
Tax-exempt	235	164	450	429
Federal funds sold and securities purchased under agreements to resell	361	214	714	466
Total interest income	43,331	39,112	82,586	76,316
Interest expense:
Deposits	4,661	7,077	10,378	14,132
Federal funds purchased and securities sold under agreements to repurchase	142	184	302	337
Other borrowings	527	691	1,059	2,056
Total interest expense	5,330	7,952	11,739	16,525
Net interest income	38,001	31,160	70,847	59,791
Provision for loan losses	4,215	12,509	14,856	33,287
Net interest income after provision for loan losses	33,786	18,651	55,991	26,504
Noninterest income:
Gains on acquisitions			5,528	98,081
Service charges on deposit accounts	5,615	5,582	10,645	10,105
Bankcard services income	3,045	2,348	5,704	4,147
Trust and investment services income	1,525	1,187	2,774	1,971
Mortgage banking income	1,125	1,267	1,988	2,111
Securities gains	10		333
Other-than-temporary impairment losses		(675)		(6,261)
Accretion on FDIC indemnification asset	(3,133)	567	(3,534)	936
Other	605	752	1,227	1,559
Total noninterest income	8,792	11,028	24,665	112,649
Noninterest expense:
Salaries and employee benefits	18,016	15,263	34,662	29,016
OREO expense and loan related	2,777	825	5,310	555
Net occupancy expense	2,346	1,907	4,922	4,280
Information services expense	2,503	2,157	4,845	4,528
Furniture and equipment expense	2,181	1,937	4,139	3,573
FDIC assessment and other regulatory charges	1,255	1,227	2,734	2,550
Merger-related expense	598	964	1,207	4,872
Advertising and marketing	289	1,028	1,198	1,615
Amortization of intangibles	505	432	951	781
Professional fees	501	616	934	1,173
Federal Home Loan Bank advances prepayment fee				3,189
Other	4,077	2,628	8,370	5,432
Total noninterest expense	35,048	28,984	69,272	61,564
Earnings:
Income before provision for income taxes	7,530	695	11,384	77,589
Provision for income taxes	2,612	120	3,950	28,053
Net income	$ 4,918	$ 575	$ 7,434	$ 49,536
Earnings per common share:
Basic (in dollars per share)	$ 0.36	$ 0.05	$ 0.55	$ 3.93
Diluted (in dollars per share)	$ 0.35	$ 0.05	$ 0.55	$ 3.90
Dividends per common share (in dollars per share)	$ 0.17	$ 0.17	$ 0.34	$ 0.34
Weighted-average common shares outstanding:
Basic (in shares)	13,805	12,612	13,500	12,599
Diluted (in shares)	13,886	12,738	13,582	12,713