Fair Value of Financial Instruments - Financial Instruments Carried at Fair Value in Consolidated Balance Sheets (Details) - USD ($) $ in Thousands |
Dec. 31, 2018 |
Dec. 31, 2017 |
---|---|---|
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] | ||
Real estate securities at fair value | $ 91,218 | $ 25,993 |
Fair Value Measurements, Recurring | Real Estate Securities | ||
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] | ||
Real estate securities at fair value | 91,218 | 25,993 |
Fair Value Measurements, Recurring | Real Estate Securities | Level II | ||
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] | ||
Real estate securities at fair value | $ 91,218 | $ 25,993 |