Quarterly report pursuant to Section 13 or 15(d)

Collateralized Borrowings in Securitization Trust, at Fair Value Collateralized Borrowings in Securitization Trust, at Fair Value (Details)

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Collateralized Borrowings in Securitization Trust, at Fair Value Collateralized Borrowings in Securitization Trust, at Fair Value (Details) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2013
Dec. 31, 2012
Debt Instrument [Line Items]    
Collateralized borrowings in securitization trust, at fair value $ 397,229 $ 0
Debt, Weighted Average Interest Rate 2.19%