CONSOLIDATED STATEMENTS OF INCOME (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Interest income
Loans, including fees	$ 77,095	$ 83,934	$ 92,941
Securities
Taxable	11,873	12,510	16,040
Tax exempt	12,247	12,160	12,415
Other interest income	64	164	215
Total interest income	101,279	108,768	121,611
Interest expense
Deposits	4,927	7,637	14,111
Federal Home Loan Bank advances	3,307	5,120	5,754
Subordinated debentures	1,675	1,825	1,737
Other borrowings	70	104	161
Total interest expense	9,979	14,686	21,763
Net interest income	91,300	94,082	99,848
Provision for loan losses	4,534	9,850	17,800
Net interest income after provision for loan losses	86,766	84,232	82,048
Non-interest income
Service charges on deposit accounts	20,427	19,815	18,147
Interchange income	7,056	6,540	6,225
Mortgage banking	6,799	9,927	5,551
Trust and investment product fees	4,756	3,650	3,250
Increase in cash surrender value of life insurance	1,378	1,206	1,200
Net realized gains on securities (includes $835, $1,867, and $11,357 accumulated other comprehensive income (AOCI) reclassifications for realized net gains on available for sale securities)	835	1,867	11,357
(Loss) on sale and write-down of OREO	(539)	(1,359)	(2,744)
Other-than-temporary loss
Total impairment loss		(500)
Net impairment loss recognized in earnings		(500)
Other income	2,417	2,745	2,322
Total non-interest income	43,129	43,891	45,308
Non-interest expense
Salaries and employee benefits	52,165	48,990	49,950
Net occupancy	7,139	6,769	6,686
Equipment	9,931	8,564	7,822
Intangibles amortization	1,868	1,835	1,939
Telecommunications	1,796	1,729	1,991
Stationery printing and supplies	1,190	1,337	1,510
FDIC assessment	1,711	2,495	3,974
Marketing	3,660	4,397	4,057
Collection expense	3,300	3,768	4,334
Prepayment penalty on FHLB advance	2,239	1,313
Consultant expense	1,582	1,150	6,547
Interchange expense	1,918	1,591	1,465
Other expenses	9,732	10,900	9,530
Total non-interest expense	98,231	94,838	99,805
Income before income tax	31,664	33,285	27,551
Income tax expense (includes $284, $635, and $3,861 income tax expense from AOCI reclassification items)	5,319	6,027	3,738
Net income	26,345	27,258	23,813
Preferred dividends and discount accretion	(504)	(2,110)	(3,054)
Redemption of preferred stock	(148)	1,357
Net income attributable to common shareholders	$ 25,693	$ 26,505	$ 20,759
Net income per common share:
Basic (in dollars per share)	$ 1.26	$ 1.31	$ 1.03
Diluted (in dollars per share)	$ 1.26	$ 1.30	$ 1.03