Loans And Leases (Schedule Of Financing Receivables On Nonaccrual Status) (Details) (USD $) In Thousands	Sep. 30, 2011	Dec. 31, 2010
Finance Receivables On Nonaccrual Status [Line Items]
Total nonaccrual financing receivables	$ 160,099	$ 196,895
Commercial, Financial, And Agricultural [Member]
Finance Receivables On Nonaccrual Status [Line Items]
Total nonaccrual financing receivables	14,421	20,012
Real Estate - Construction [Member]
Finance Receivables On Nonaccrual Status [Line Items]
Total nonaccrual financing receivables	37,487	57,779
Real Estate Secured - Residential [Member]
Finance Receivables On Nonaccrual Status [Line Items]
Total nonaccrual financing receivables	41,238	50,973
Real Estate Secured - Commercial [Member]
Finance Receivables On Nonaccrual Status [Line Items]
Total nonaccrual financing receivables	65,377	65,313
Consumer [Member]
Finance Receivables On Nonaccrual Status [Line Items]
Total nonaccrual financing receivables	0	1
Leases [Member]
Finance Receivables On Nonaccrual Status [Line Items]
Total nonaccrual financing receivables	$ 1,576	$ 2,817