Finance Receivables And Allowance For Credit Losses (Schedule Of Activity Of Purchased Impaired Loans) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2012	Dec. 31, 2011
Financing Receivable, Impaired [Line Items]
Carrying amount	$ 58,550	$ 65,684
Carrying amount, net of allowance	56,162	63,982
Allowance for loan losses	2,388	1,702
Commercial Loans [Member]
Financing Receivable, Impaired [Line Items]
Purchased impaired loans	1,115	1,143
Commercial Real Estate [Member]
Financing Receivable, Impaired [Line Items]
Purchased impaired loans	22,290	23,059
Consumer [Member]
Financing Receivable, Impaired [Line Items]
Purchased impaired loans	34,779	41,064
Residential [Member]
Financing Receivable, Impaired [Line Items]
Purchased impaired loans	$ 366	$ 418