Loans And Allowance For Credit Losses (Summary Of Nonaccrual Loans) (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Financing Receivable, Allowance for Credit Losses [Line Items]
Total	$ 321,994	$ 406,613
LoansReceivableHeldForSaleNet [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total	29,453	0
Commercial And Industrial [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total	82,646	97,960
Leasing [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total	668	757
Owner Occupied [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total	100,617	136,281
Municipal [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total	8,951	9,986
Commercial Loan [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total	192,882	244,984
Commercial Real Estate Construction Financing Receivable [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total	23,616	29,205
Term [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total	44,042	60,380
Commercial Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total	67,658	89,585
Home Equity Line of Credit [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total	11,367	8,969
One Through Four Family Residential [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total	44,668	53,002
Construction And Other Consumer Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total	2,462	3,510
Revolving Credit Facility [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total	600	1,365
Consumer Other Financing Receivable [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total	325	804
Consumer Loan [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total	59,422	67,650
Fdic Supported Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total	$ 2,032	$ 4,394