Fair Value of Assets And Liabilities (Level Of Valuation Assumptions Used To Determine Adjustment) (Details) (USD $) In Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2011		Jun. 30, 2010		Jun. 30, 2011		Jun. 30, 2010
Loans held for sale, nonrecurring measurements	$ 225,242		$ 240,510		$ 225,242		$ 240,510
Loans, net of unearned income, nonrecurring measurements	169,448	[1]	215,198	[1]	169,448	[1]	215,198	[1]
Real estate acquired by foreclosure, nonrecurring measurements	78,792	[2]	109,272	[2]	78,792	[2]	109,272	[2]
Other assets, nonrecurring measurements	79,053	[3]	98,723	[3]	79,053	[3]	98,723	[3]
Changes in valuation model inputs or assumptions					7,418		58,366
Gain (loss) on financial assets measured on non-recurring basis					0
Level 1 [Member] | SBAs [Member]
Loans held for sale, nonrecurring measurements
Level 2 [Member] | SBAs [Member]
Loans held for sale, nonrecurring measurements	49,641		10,707		49,641		10,707
SBAs [Member]
Loans held for sale, nonrecurring measurements	49,641		10,707		49,641		10,707
SBAs [Member] | Net Gains/(Losses) [Member]
Net gains/(losses) Loans held for sale - SBAs	(2)		7		(2)		48
Level 1 [Member] | First Mortgages [Member]
Loans held for sale, nonrecurring measurements		[1]		[1]		[1]		[1]
Level 3 [Member] | First Mortgages [Member]
Loans held for sale, nonrecurring measurements	13,428	[1]	20,959	[1]	13,428	[1]	20,959	[1]
First Mortgages [Member]
Loans held for sale, nonrecurring measurements	13,428	[1]	20,959	[1]	13,428	[1]	20,959	[1]
First Mortgages [Member] | Net Gains/(Losses) [Member]
Net gains/(losses) Loans held for sale - first mortgages	3,458	[1]	834	[1]	4,618	[1]	3,527	[1]
Level 1 [Member]
Loans held for sale, nonrecurring measurements
Loans, net of unearned income, nonrecurring measurements		[1]		[1]		[1]		[1]
Real estate acquired by foreclosure, nonrecurring measurements		[2]		[2]		[2]		[2]
Other assets, nonrecurring measurements		[3]		[3]		[3]		[3]
Gain (loss) on financial assets measured on non-recurring basis
Level 2 [Member]
Loans held for sale, nonrecurring measurements	9,372		30,762		9,372		30,762
Level 3 [Member]
Loans held for sale, nonrecurring measurements	215,870		209,748		215,870		209,748
Loans, net of unearned income, nonrecurring measurements	169,448	[1]	215,198	[1]	169,448	[1]	215,198	[1]
Real estate acquired by foreclosure, nonrecurring measurements	78,792	[2]	109,272	[2]	78,792	[2]	109,272	[2]
Other assets, nonrecurring measurements	79,053	[3]	98,723	[3]	79,053	[3]	98,723	[3]
Net Gains/(Losses) [Member]
Net gains/(losses) Loans, net of unearned income	5,257	[1]	32,697	[1]	17,759	[1]	100,448	[1]
Net gains/(losses) Real estate acquired by foreclosure	4,612	[2]	3,445	[2]	9,651	[2]	9,376	[2]
Net gains/(losses) Other assets	(1,809)	[3]	2,684	[3]	4,355	[3]	5,218	[3]
Gain (loss) on financial assets measured on non-recurring basis	$ (15,138)		$ (39,653)		$ (36,385)		$ (118,521)

[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.