v3.19.1
Securitization Transactions (Schedule of Residential Loan Securitizations) (Details) - Non-QM loan securitization - USD ($)
 3 Months Ended 12 Months Ended
Mar. 31, 2019
Dec. 31, 2018
November 2017 [Member]    
Securitization Transactions [Line Items]    
Total Face Amount of Certificates Issued [1] $ 141,233,000 $ 141,233,000
Economic interest retained 5.10% 5.10%
Purchase of certificates $ 0.7 $ 700,000
November 2018 [Member]    
Securitization Transactions [Line Items]    
Total Face Amount of Certificates Issued [2] $ 232,518,000 $ 232,518,000
Economic interest retained 5.70% 5.70%
Purchase of certificates $ 1.3 $ 1,300,000
The Company [Member] | November 2017 [Member]    
Securitization Transactions [Line Items]    
Principal Balance of Loans Transferred to the Depositor 141,233,000 141,233,000
The Company [Member] | November 2018 [Member]    
Securitization Transactions [Line Items]    
Principal Balance of Loans Transferred to the Depositor $ 232,518,000 $ 232,518,000
[1] In order to comply with the Risk Retention Rules, the Sponsor purchased the two most subordinated classes of Certificates and the excess cash flow certificates, with an aggregate value equal to 5.1% of the fair value of all Certificates issued. The Sponsor also purchased, for an aggregate purchase price of $0.7 million, the Certificates entitled to excess servicing fees, while the remaining classes of Certificates were purchased by unrelated third parties.
[2] In order to comply with the Risk Retention Rules, the Sponsor purchased the two most subordinated classes of Certificates and the excess cash flow certificates, with an aggregate value equal to 5.7% of the fair value of all Certificates issued. The Sponsor also purchased, for an aggregate purchase price of $1.3 million, the Certificates entitled to excess servicing fees, while the remaining classes of Certificates were purchased by unrelated third parties.