Consolidated Balance Sheets (unaudited) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2013
ASSETS
Cash and due from banks, noninterest-bearing	$ 84,128	$ 83,881	$ 89,383
Due from banks, interest-bearing	251,111	136,644	95,634
Federal funds sold	1,275	2,749	102
Total cash and cash equivalents	336,514	223,274	185,119
Securities available for sale	159,254	173,041	172,535
Securities held to maturity (fair values of $57,601, $56,700, and $56,824)	53,821	53,995	54,054
Presold mortgages in process of settlement	5,761	5,422	2,884
Loans - non-covered	2,292,841	2,252,885	2,215,173
Loans - covered by FDIC loss share agreement	133,249	210,309	226,909
Total loans	2,426,090	2,463,194	2,442,082
Allowance for loan losses - non-covered	(41,564)	(44,263)	(43,475)
Allowance for loan losses - covered	(2,567)	(4,242)	(4,216)
Total allowance for loan losses	(44,131)	(48,505)	(47,691)
Net loans	2,381,959	2,414,689	2,394,391
Premises and equipment	74,871	77,448	77,621
Accrued interest receivable	8,885	9,649	9,663
FDIC indemnification asset	25,328	48,622	64,946
Goodwill	65,835	65,835	65,835
Other intangible assets	2,252	2,834	3,054
Foreclosed real estate - non-covered	11,705	12,251	15,098
Foreclosed real estate - covered	3,237	24,497	29,193
Bank-owned life insurance	44,996	44,040	43,642
Other assets	21,193	29,473	54,405
Total assets	3,195,611	3,185,070	3,172,440
LIABILITIES
Deposits: Noninterest bearing checking accounts	540,349	482,650	463,972
Interest bearing checking accounts	538,815	557,413	543,905
Money market accounts	548,832	551,335	556,470
Savings accounts	178,260	169,023	166,706
Time deposits of $100,000 or more	503,125	564,527	562,934
Other time deposits	369,631	426,071	446,873
Total deposits	2,679,012	2,751,019	2,740,860
Borrowings	116,394	46,394	46,394
Accrued interest payable	695	879	920
Other liabilities	14,695	14,856	21,524
Total liabilities	2,810,796	2,813,148	2,809,698
Commitments and contingencies
SHAREHOLDERS' EQUITY
Common stock, no par value per share. Authorized: 40,000,000 shares Issued & outstanding: 19,705,381, 19,679,659, and 19,679,659 shares	132,440	132,099	132,098
Retained earnings	179,656	167,136	163,250
Accumulated other comprehensive income (loss)	1,932	1,900	(3,393)
Total shareholders' equity	384,815	371,922	362,742
Total liabilities and shareholders' equity	3,195,611	3,185,070	3,172,440
Series B Preferred Stock [Member]
SHAREHOLDERS' EQUITY
Preferred stock, no par value per share. Authorized: 5,000,000 shares Series B issued & outstanding: 63,500, 63,500, and 63,500 shares Series C, convertible, issued & outstanding: 728,706, 728,706, and 728,706 shares	63,500	63,500	63,500
Series C Preferred Stock [Member]
SHAREHOLDERS' EQUITY
Preferred stock, no par value per share. Authorized: 5,000,000 shares Series B issued & outstanding: 63,500, 63,500, and 63,500 shares Series C, convertible, issued & outstanding: 728,706, 728,706, and 728,706 shares	$ 7,287	$ 7,287	$ 7,287