Organization - Narrative (Details) |
6 Months Ended |
|---|---|
Jun. 30, 2018 | |
| General Partner | |
| Subsidiary of Limited Liability Company or Limited Partnership [Line Items] | |
| Ownership of operating partnership | 1.00% |
| Limited Partner | |
| Subsidiary of Limited Liability Company or Limited Partnership [Line Items] | |
| Ownership of operating partnership | 99.00% |