Consolidated Statements Of Income (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
INTEREST INCOME
Loans, including fees	$ 154,121	$ 169,404	$ 179,774
Investment Securities:
Taxable	8,169	7,685	11,020
Tax-exempt	2,347	2,830	3,655
Dividends	442	500	638
Total Interest Income	165,079	180,419	195,087
INTEREST EXPENSE
Deposits	22,952	28,717	38,438
Short-term borrowings	55	210	686
Long-term borrowings and junior subordinated debt securities	4,726	5,646	9,981
Total Interest Expense	27,733	34,573	49,105
NET INTEREST INCOME	137,346	145,846	145,982
Provision for loan losses	15,609	29,511	72,354
Net Interest Income After Provision for Loan Losses	121,737	116,335	73,628
NONINTEREST INCOME
Security (losses) gains, net	(124)	274	(5,088)
Debit and credit card fees	10,889	9,954	6,921
Service charges on deposit accounts	9,978	11,178	12,344
Insurance fees	8,314	8,312	7,751
Wealth management fees	8,180	7,808	7,500
Mortgage banking	1,199	3,403	2,727
Other	5,621	6,281	6,425
Total Noninterest Income	44,057	47,210	38,580
NONINTEREST EXPENSE
Salaries and employee benefits	51,078	48,715	48,848
Net occupancy	6,943	6,928	6,819
Data processing	6,853	6,145	6,048
Professional services and legal	5,437	6,889	4,220
Furniture and equipment	4,941	5,054	4,991
FDIC assessment	3,570	5,426	8,388
Other taxes	3,381	3,432	3,733
Joint venture amortization	3,302	2,573	4,393
Marketing	3,019	2,795	2,751
Other	15,384	17,676	17,935
Total Noninterest Expense	103,908	105,633	108,126
Income Before Taxes	61,886	57,912	4,082
Provision (benefit) for income taxes	14,622	14,432	(3,869)
Net Income	47,264	43,480	7,951
Preferred stock dividends and discount amortization	7,611	6,201	5,913
Net Income Available to Common Shareholders	$ 39,653	$ 37,279	$ 2,038
Earnings per common share-basic	$ 1.41	$ 1.34	$ 0.07
Earnings per common share-diluted	$ 1.41	$ 1.34	$ 0.07
Dividends declared per common share	$ 0.60	$ 0.60	$ 0.61