Quarterly report pursuant to Section 13 or 15(d)

Fair Values of Assets and Liabilities (Fair value option) (Details 3)

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Fair Values of Assets and Liabilities (Fair value option) (Details 3) - USD ($)
$ in Thousands
Jun. 30, 2015
Dec. 31, 2014
Mortgages Held For Sale    
Fair Value, Option, Quantitative Disclosures [Line Items]    
Mortgages Held-for-sale, Fair Value Disclosure $ 453,489 $ 354,888
Mortgages Held For Sale, Unpaid Principal 442,306 340,070
Fair Value, Option, Aggregate Differences, Loans and Long-term Receivables 11,183 14,818
Automobile Loans    
Fair Value, Option, Quantitative Disclosures [Line Items]    
Loans Receivable, Fair Value Disclosure 3,998 10,590
Loans Receivable, Unpaid Principal 3,856 10,022
Fair Value, Option, Aggregate Differences, Loans and Long-term Receivables 142 568
Securitization Trust Notes Payable    
Fair Value, Option, Quantitative Disclosures [Line Items]    
Long-term Debt, Fair Value 0 0
Long-term Debt, Unpaid Principal 0 0
Fair Value, Option, Aggregate Differences, Long-term Debt Instruments $ 0 $ 0