Statements of Income - Unaudited (USD $) In Thousands, except Per Share data	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Interest And Fee Income Loans And Leases Abstract
Interest and fees on loans	$ 81,692	$ 70,293	$ 223,241	$ 196,797
Securities	1,524	2,246	5,050	7,463
Federal funds sold	3	50	36	92
Deposits in other banks	44	11	306	26
Total interest income	83,263	72,600	228,633	204,378
Interest Expense Abstract
Deposits	3,191	8,760	11,479	24,938
Federal funds purchased	128	259	329	868
Repurchase agreements	2	3	6	9
Other borrowings	110		124	48
Trust preferred submordinated debentures	634	972	1,905	2,796
Total interest expense	4,065	9,994	13,843	28,659
Net interest income	79,198	62,606	214,790	175,719
Provision for credit losses	7,000	13,500	22,500	41,500
Net interest income after provision for credit losses	72,198	49,106	192,290	134,219
Noninterest Income Abstract
Service charges on deposit accounts	1,585	1,662	4,976	4,684
Trust fee income	1,091	1,013	3,111	2,947
Bank Owned Life Insurance (BOLI) Income	533	455	1,595	1,407
Brokered loan fees	2,849	3,272	7,927	7,397
Equipment rental income	223	792	1,682	3,332
Other	1,322	907	3,947	3,318
Total non-interest income	7,603	8,101	23,238	23,085
Noninterest Expense Abstract
Salaries and employee benefits	25,596	21,872	73,877	63,334
Net occupancy expense	3,367	3,128	10,120	9,174
Leased equipment depreciation	281	580	1,284	2,674
Marketing	2,455	1,333	7,311	3,221
Legal and professional	3,647	2,705	10,634	7,953
Communications and technology	2,210	2,256	7,141	6,368
FDIC insurance assessment	1,465	2,482	5,948	6,591
Allowance and other carrying costs for OREO	2,150	4,071	7,203	7,171
Other	5,015	4,175	14,330	12,420
Total non-interest expense	46,186	42,602	137,848	118,906
Income from continuing operations before income taxes	33,615	14,605	77,680	38,398
Income tax expense	11,905	5,074	27,323	13,151
Income from continuing operations	21,710	9,531	50,357	25,247
Loss from discontinued operations (after-tax)	(7)	(5)	(121)	(114)
Net income	$ 21,703	$ 9,526	$ 50,236	$ 25,133
Earnings Per Share Basic Abstract
Income from continuing operations	$ 0.58	$ 0.26	$ 1.35	$ 0.69
Net income	$ 0.58	$ 0.26	$ 1.35	$ 0.69
Earnings Per Share Diluted Abstract
Income from continuing operations	$ 0.56	$ 0.25	$ 1.31	$ 0.68
Net income	$ 0.56	$ 0.25	$ 1.31	$ 0.67