Quarterly report pursuant to Section 13 or 15(d)

Residential Mortgage Loans Held-for-Investment in Securitization Trusts, at Fair Value (Details)

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Residential Mortgage Loans Held-for-Investment in Securitization Trusts, at Fair Value (Details) - USD ($)
$ in Thousands
Mar. 31, 2017
Dec. 31, 2016
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Residential Mortgage Loans Held-for-Invesment, Unpaid Principal $ 3,131,499 $ 3,234,044
Residential Mortgage Loans Held-for-Investment, Fair Value Adjustment 50,312 37,273
Residential mortgage loans held-for-investment in securitization trusts, at fair value $ 3,181,811 $ 3,271,317