Related Party Transactions and Arrangements - Property Management and Servicing Agreement (Details) - USD ($) $ in Thousands |
3 Months Ended | |||
|---|---|---|---|---|
May 20, 2014 |
Mar. 31, 2019 |
Mar. 31, 2018 |
Dec. 31, 2018 |
|
| Related Party Transaction [Line Items] | ||||
| Related party fee income | $ 6,927 | $ 0 | ||
| Affiliated Entity | Property Management | ||||
| Related Party Transaction [Line Items] | ||||
| Annual management fees rate | 0.25% | |||
| Related party fee income | 1,500 | |||
| Affiliated Entity | Special Servicing Fees | ||||
| Related Party Transaction [Line Items] | ||||
| Annual management fees rate | 0.75% | |||
| Related party fee income | 400 | |||
| Affiliated Entity | Property Management and Servicing Agreement | ||||
| Related Party Transaction [Line Items] | ||||
| Due from related parties | $ 500 | $ 500 | ||