Consolidated Statements of Operations (Unaudited) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
INTEREST REVENUE:
Loans and leases	$ 99,092	$ 109,012
Deposits with other banks	602	401
Available-for-sale securities:
Taxable	8,700	11,162
Tax-exempt	3,960	4,256
Loans held for sale	673	544
Total interest revenue	113,027	125,375
Deposits:
Interest bearing demand	3,125	4,449
Savings	513	714
Other time	8,041	11,291
Federal funds purchased and securities sold under agreement to repurchase	63	63
Federal Home Loan Bank borrowings	348	367
Junior subordinated debt	2,857	2,879
Other	2	2
Total interest expense	14,949	19,765
Net interest revenue	98,078	105,610
Provision for credit losses	4,000	10,000
Net interest revenue, after provision for credit losses	94,078	95,610
NONINTEREST REVENUE:
Mortgage lending	12,346	15,142
Credit card, debit card and merchant fees	7,523	7,523
Service charges	12,832	15,116
Trust income	3,210	2,282
Security gains, net	19	74
Insurance commissions	26,641	23,153
Other	8,747	9,070
Total noninterest revenue	71,318	72,360
NONINTEREST EXPENSE:
Salaries and employee benefits	79,414	74,931
Occupancy, net of rental income	10,237	10,066
Equipment	4,948	5,333
Deposit insurance assessments	2,804	5,383
Other	37,968	39,967
Total noninterest expense	135,371	135,680
Income before income taxes	30,025	32,290
Income tax expense	9,220	9,424
Net income	$ 20,805	$ 22,866
Earnings per share:
Basic (in dollars per share)	$ 0.22	$ 0.25
Diluted (in dollars per share)	$ 0.22	$ 0.25
Dividends declared per common share (in dollars per share)	$ 0.01	$ 0.01