Fair Value of Assets And Liabilities (Level Of Valuation Assumptions Used To Determine Adjustment) (Details) (USD $) In Thousands	3 Months Ended				9 Months Ended
	Sep. 30, 2011		Sep. 30, 2010		Sep. 30, 2011		Sep. 30, 2010
Fair Value Of Assets And Liabilities [Line Items]
Loans held for sale, nonrecurring measurements	$ 217,320		$ 279,642		$ 217,320		$ 279,642
Loans, net of unearned income, nonrecurring measurements	135,667	[1]	222,577	[1]	135,667	[1]	222,577	[1]
Real estate acquired by foreclosure, nonrecurring measurements	80,055	[2]	139,359	[2]	80,055	[2]	139,359	[2]
Other assets, nonrecurring measurements	75,129	[3]	93,446	[3]	75,129	[3]	93,446	[3]
Changes in valuation model inputs or assumptions					38,230		57,981
Level 2 [Member] | SBAs [Member]
Fair Value Of Assets And Liabilities [Line Items]
Loans held for sale, nonrecurring measurements	46,592		12,000		46,592		12,000
SBAs [Member]
Fair Value Of Assets And Liabilities [Line Items]
Loans held for sale, nonrecurring measurements	46,592		12,000		46,592		12,000
SBAs [Member] | Net Gains/(Losses) [Member]
Fair Value Of Assets And Liabilities [Line Items]
Net gains/(losses) Loans held for sale - SBAs			12		(2)		60
Level 3 [Member] | First Mortgages [Member]
Fair Value Of Assets And Liabilities [Line Items]
Loans held for sale, nonrecurring measurements	13,160		17,887		13,160		17,887
First Mortgages [Member]
Fair Value Of Assets And Liabilities [Line Items]
Loans held for sale, nonrecurring measurements	13,160		17,887		13,160		17,887
First Mortgages [Member] | Net Gains/(Losses) [Member]
Fair Value Of Assets And Liabilities [Line Items]
Net gains/(losses) Loans held for sale - first mortgages	(3,889)		(1,032)		(8,506)		(4,560)
Level 2 [Member]
Fair Value Of Assets And Liabilities [Line Items]
Loans held for sale, nonrecurring measurements	10,468		63,929		10,468		63,929
Level 3 [Member]
Fair Value Of Assets And Liabilities [Line Items]
Loans held for sale, nonrecurring measurements	206,852		215,713		206,852		215,713
Loans, net of unearned income, nonrecurring measurements	135,667	[1]	222,577	[1]	135,667	[1]	222,577	[1]
Real estate acquired by foreclosure, nonrecurring measurements	80,055	[2]	139,359	[2]	80,055	[2]	139,359	[2]
Other assets, nonrecurring measurements	75,129	[3]	93,446	[3]	75,129	[3]	93,446	[3]
Net Gains/(Losses) [Member]
Fair Value Of Assets And Liabilities [Line Items]
Net gains/(losses) Loans, net of unearned income	(20,130)	[1]	(27,535)	[1]	(37,890)	[1]	(127,983)	[1]
Net gains/(losses) Real estate acquired by foreclosure	(4,350)	[2]	(4,562)	[2]	(14,001)	[2]	(13,938)	[2]
Net gains/(losses) Other assets	(3,434)	[3]	(2,687)	[3]	(7,790)	[3]	(7,905)	[3]
Gain (loss) on financial assets measured on non-recurring basis	$ (31,803)		$ (35,804)		$ (68,189)		$ (154,326)

[1] Represents carrying value of loans for which adjustments are based on the appraised value of the collateral. Write-downs on these loans are recognized as part of provision.

[2] Represents the fair value and related losses of foreclosed properties that were measured subsequent to their initial classification as foreclosed assets. Balance excludes foreclosed real estate related to government insured mortgages.

[3] Represents low income housing investments.