Consolidated Statements of Operations (Unaudited) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
INTEREST REVENUE:
Loans and leases	$ 105,937	$ 114,260	$ 322,686	$ 348,510
Deposits with other banks	399	203	1,182	449
Federal funds sold and securities purchased under agreement to resell	2	0	3	166
Held-to-maturity securities:
Taxable	0	0	0	13,080
Tax-exempt	0	0	0	5,638
Available-for-sale securities:
Taxable	9,329	13,172	30,679	32,208
Tax-exempt	4,109	4,130	12,575	6,825
Loans held for sale	974	632	2,204	1,584
Total interest revenue	120,750	132,397	369,329	408,460
Deposits:
Interest bearing demand	3,889	5,324	12,523	17,909
Savings	686	828	2,091	2,464
Other time	9,482	14,837	31,048	48,605
Federal funds purchased and securities sold under agreement to repurchase	73	95	202	382
Federal Home Loan Bank borrowings	364	375	1,097	3,092
Junior subordinated debt	2,875	2,861	8,633	8,580
Other	2	2	5	4
Total interest expense	17,371	24,322	55,599	81,036
Net interest revenue	103,379	108,075	313,730	327,424
Provision for credit losses	6,000	25,112	22,000	110,831
Net interest revenue, after provision for credit losses	97,379	82,963	291,730	216,593
NONINTEREST REVENUE:
Mortgage lending	13,549	(1,443)	39,731	8,141
Credit card, debit card and merchant fees	8,270	12,981	23,580	34,590
Service charges	14,189	17,334	43,002	49,258
Trust income	3,101	2,854	8,522	8,838
Security gains, net	39	2,047	290	12,109
Insurance commissions	23,519	22,012	69,636	67,502
Other	7,753	6,270	24,487	25,072
Total noninterest revenue	70,420	62,055	209,248	205,510
NONINTEREST EXPENSE:
Salaries and employee benefits	74,829	71,851	227,421	212,368
Occupancy, net of rental income	10,944	11,144	31,497	32,047
Equipment	5,083	5,346	15,540	16,599
Deposit insurance assessments	3,998	3,781	13,375	15,642
Prepayment penalty on FHLB borrowings	0	0	0	9,778
Other	38,934	38,576	118,141	111,343
Total noninterest expense	133,788	130,698	405,974	397,777
Income before income taxes	34,011	14,320	95,004	24,326
Income tax expense	10,186	2,386	27,689	60
Net income	$ 23,825	$ 11,934	$ 67,315	$ 24,266
Earnings per share:
Basic (in dollars per share)	$ 0.25	$ 0.14	$ 0.72	$ 0.29
Diluted (in dollars per share)	$ 0.25	$ 0.14	$ 0.72	$ 0.29
Dividends declared per common share (in dollars per share)	$ 0.01	$ 0.01	$ 0.03	$ 0.13