Finance Receivables And Allowance For Credit Losses (Schedule Of Activity In The Allowance For Loan Losses) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010
Financing Receivable, Allowance for Credit Losses [Line Items]
Ending balance	$ 58,060	$ 72,309
Commercial [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance	26,204	26,869
Charge-offs	(10,300)	(11,967)
Recoveries	4,330	5,060
Provision	(270)	6,242
Ending balance	19,964	26,204
Commercial Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance	32,654	27,138
Charge-offs	(12,319)	(10,196)
Recoveries	2,302	2,041
Provision	4,356	13,671
Ending balance	26,993	32,654
Consumer [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance	11,142	13,853
Charge-offs	(10,335)	(16,848)
Recoveries	6,226	6,014
Provision	(79)	8,123
Ending balance	6,954	11,142
Residential [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance	2,309	1,688
Charge-offs	(1,945)	(2,296)
Recoveries	319	172
Provision	3,466	2,745
Ending balance	4,149	2,309
Unallocated [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance	0	0
Charge-offs	0	0
Recoveries	0	0
Provision	0	0
Ending balance	0	0
Total Loans And Leases Receivable Allowance [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance	72,309	69,548
Charge-offs	(34,899)	(41,307)
Recoveries	13,177	13,287
Provision	7,473	30,781
Ending balance	$ 58,060	$ 72,309