Finance Receivables And Allowance For Credit Losses (Schedule Of Activity Of Purchased Impaired Loans) (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Financing Receivable, Impaired [Line Items]
Carrying amount	$ 49,479	$ 65,684
Carrying amount, net of allowance	47,713	63,982
Allowance for loan losses	1,766	1,702
Commercial [Member]
Financing Receivable, Impaired [Line Items]
Purchased impaired loans	529	1,143
Commercial Real Estate Segment [Member]
Financing Receivable, Impaired [Line Items]
Purchased impaired loans	18,886	23,059
Consumer Segment [Member]
Financing Receivable, Impaired [Line Items]
Purchased impaired loans	29,896	41,064
Residential [Member]
Financing Receivable, Impaired [Line Items]
Purchased impaired loans	$ 168	$ 418