Tenant Leases (Details) $ in Thousands |
6 Months Ended |
|---|---|
|
Jun. 30, 2017
USD ($)
| |
| Property Subject to or Available for Operating Lease [Line Items] | |
| July 1 through December 31, 2017 | $ 228,002 |
| 2018 | 396,454 |
| 2019 | 346,515 |
| 2020 | 302,736 |
| 2021 | 267,599 |
| 2022 and thereafter | 1,085,578 |
| Total | $ 2,626,884 |
| Tenant Leases [Member] | |
| Property Subject to or Available for Operating Lease [Line Items] | |
| Operating leases with various expiration dates through year | Dec. 31, 2035 |
| Multi-Family Properties [Member] | |
| Property Subject to or Available for Operating Lease [Line Items] | |
| Lease period | 1 year |