Consolidated Statements Of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Interest income
Interest and fees on loans	$ 128,841	$ 107,484	$ 101,312
Interest on taxable securities	10,254	9,821	11,858
Interest on nontaxable securities	1,321	1,215	1,070
Interest on deposits in other banks	617	462	262
Interest on federal funds sold	38	89	71
Total interest income	141,071	119,071	114,573
Interest expense
Interest on deposits	25,506	28,647	38,506
Interest on other borrowings	2,041	1,147	2,044
Total interest expense	27,547	29,794	40,550
Net interest income	113,524	89,277	74,023
Provision for loan losses	32,729	50,521	42,068
Net interest income after provision for loan losses	80,795	38,756	31,955
Other income
Service charges on deposit accounts	18,081	15,143	13,593
Mortgage banking activity	2,971	2,748	3,050
Other service charges, commissions and fees	1,247	805	531
Gain on sales of securities	238	200	871
Gain on acquisitions	26,867	14,651	38,566
Other	3,403	1,701	1,742
Total other income	52,807	35,248	58,353
Other expenses
Salaries and employee benefits	40,210	31,918	31,939
Occupancy and equipment expense	11,390	8,212	8,914
Advertising and marketing expense	722	566	1,661
Amortization of intangible assets	1,011	999	617
Data processing and communications costs	10,315	7,644	6,878
Goodwill impairment			54,813
Other operating expenses	38,305	31,849	19,978
Total other expenses	101,953	81,188	124,800
Income (loss) before income taxes	31,649	(7,184)	(34,492)
Applicable income tax benefit/(expense)	(10,556)	3,195	(7,297)
Net income (loss)	21,093	(3,989)	(41,789)
Preferred stock dividends	3,241	3,213	3,161
Net income (loss) available to common stockholders	$ 17,852	$ (7,202)	$ (44,950)
Basic income (loss) per share	$ 0.76	$ (0.35)	$ (3.27)
Diluted income (loss) per share	$ 0.76	$ (0.35)	$ (3.27)