Annual report pursuant to Section 13 and 15(d)

Organization and Operations Securitization Issuance Program (Details)

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Organization and Operations Securitization Issuance Program (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2009
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Payments to Purchase Mortgage Loans Held-for-sale $ 5,782 $ 0 $ 0