Tenant Leases (Details) $ in Thousands |
3 Months Ended |
|---|---|
|
Mar. 31, 2017
USD ($)
| |
| Property Subject to or Available for Operating Lease [Line Items] | |
| April 1 through December 31, 2017 | $ 337,200 |
| 2018 | 388,207 |
| 2019 | 336,123 |
| 2020 | 291,066 |
| 2021 | 256,013 |
| 2022 and thereafter | 1,038,262 |
| Total | $ 2,646,871 |
| 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 |