Finance Receivables And Allowance For Credit Losses (Schedule Of TDRs For Which There Was A Payment Default) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012 loan	Dec. 31, 2011 loan
Financing Receivable, Modifications [Line Items]
Number of Contracts	15	9
Recorded Investment	$ 1,111	$ 3,234
Commercial [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts	8	3
Recorded Investment	500	1,647
Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts	7	6
Recorded Investment	$ 611	$ 1,587