Tenant Leases (Future Minimum Rentals To Be Received Under Non-Cancelable Operating Leases) (Details) $ in Thousands |
9 Months Ended |
|---|---|
|
Sep. 30, 2018
USD ($)
| |
| Property Subject to or Available for Operating Lease [Line Items] | |
| October 1 through December 31, 2018 | $ 101,119 |
| 2019 | 319,132 |
| 2020 | 304,539 |
| 2021 | 281,725 |
| 2022 | 258,220 |
| 2023 and thereafter | 1,183,865 |
| Total | $ 2,448,600 |
| Tenant Leases [Member] | |
| Property Subject to or Available for Operating Lease [Line Items] | |
| Operating leases with various expiration dates through year | Dec. 31, 2036 |
| Multi-Family Properties [Member] | |
| Property Subject to or Available for Operating Lease [Line Items] | |
| Lease period | 1 year |