CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Interest income
Interest and fees on loans	$ 119,310	$ 128,841	$ 107,484
Interest on taxable securities	8,250	10,254	9,821
Interest on nontaxable securities	1,475	1,321	1,215
Interest on deposits in other banks	434	617	462
Interest on federal funds sold	10	38	89
Total income	129,479	141,071	119,071
Interest expense
Interest on deposits	13,327	25,506	28,647
Interest on other borrowings	1,747	2,041	1,147
Total interest expense	15,074	27,547	29,794
Net interest income	114,405	113,524	89,277
Provision for loan losses	31,089	32,729	50,521
Net interest income after provision for loan losses	83,316	80,795	38,756
Other income
Service charges on deposit accounts	19,576	18,081	15,143
Mortgage banking activity	12,989	2,971	2,748
Other service charges, commissions and fees	1,431	1,247	805
Gain on sales of securities	322	238	200
Gain on acquisitions	20,037	26,867	14,651
Other	3,519	3,403	1,701
Total other income	57,874	52,807	35,248
Other expenses
Salaries and employee benefits	53,122	40,210	31,918
Occupancy and equipment	13,208	11,390	8,212
Advertising and marketing	1,622	722	566
Amortization of intangible assets	1,359	1,011	999
Data processing and communications	10,683	10,315	7,644
Other	39,476	38,305	31,849
Total other expenses	119,470	101,953	81,188
Income (loss) before income taxes	21,720	31,649	(7,184)
Applicable income tax benefit/(expense)	(7,285)	(10,556)	3,195
Net income (loss)	14,435	21,093	(3,989)
Preferred stock dividends	3,577	3,241	3,213
Net income (loss) available to common stockholders	$ 10,858	$ 17,852	$ (7,202)
Basic income (loss) per share	$ 0.46	$ 0.76	$ (0.35)
Diluted income (loss) per share	$ 0.46	$ 0.76	$ (0.35)