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Finance Receivables Finance Receivables (Narrative) (Details) (USD $)
3 Months Ended 9 Months Ended
Sep. 30, 2011
Sep. 30, 2012
Sep. 30, 2011
Dec. 31, 2011
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Principal Collections and Recoveries on Commercial Lending Receivables   $ 299,731,000    
Financing Receivable, Recorded Investment, Nonaccrual Status   450,400,000   439,400,000
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield, Reclassifications from Nonaccretable Difference $ 7,270,000 $ 169,634,000 $ 260,936,000