Finance Receivables And Allowance For Credit Losses (TDRs For Which There Was A Payment Default Within Twelve Months Of Restructurings) (Details) (Troubled Debt Restructurings That Subsequently Defaulted [Member], USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2011
Financing Receivable, Modifications [Line Items]
Number of Contracts	9
Recorded Investment	$ 3,234
Commercial [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts	3
Recorded Investment	1,647
Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts	6
Recorded Investment	$ 1,587