Acquired Lease Intangibles - Summary of Acquired Lease Intangibles (Details) - USD ($) $ in Thousands |
Sep. 30, 2019 |
Dec. 31, 2018 |
|---|---|---|
| Acquired Finite-Lived Intangible Assets [Line Items] | ||
| Acquired lease intangible assets, net | $ 2,877 | $ 3,251 |
| Acquired lease intangible liabilities, net | 38,384 | 52,569 |
| Above Market Tenant Leases | ||
| Acquired Finite-Lived Intangible Assets [Line Items] | ||
| Off-market lease, assets | 3,745 | 5,595 |
| Accumulated amortization | (1,800) | (3,289) |
| Below Market Tenant Leases | ||
| Acquired Finite-Lived Intangible Assets [Line Items] | ||
| Off-market lease, liabilities | 86,159 | 112,175 |
| Accumulated accretion | (47,775) | (63,013) |
| Above Market Ground Leases | ||
| Acquired Finite-Lived Intangible Assets [Line Items] | ||
| Off-market lease, assets | 1,152 | 1,152 |
| Accumulated amortization | (220) | (207) |
| Off-market lease, liabilities | 0 | 4,017 |
| Accumulated accretion | $ 0 | $ (610) |