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
Jun. 30, 2017
Dec. 31, 2016
Residential Mortgage Loans Held-for-Investment [Abstract]    
Unpaid principal balance $ 3,052,238 $ 3,234,044
Fair value adjustment 68,172 37,273
Residential mortgage loans held-for-investment in securitization trusts, at fair value $ 3,120,410 $ 3,271,317