Recent Transactions (Summary Of Income From Property Held For Sale, Net) (Details) - USD ($)
$ in Thousands |
Dec. 31, 2017 |
Dec. 31, 2016 |
| Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |
|
|
| Less - Accumulated depreciation |
$ (1,087,083)
|
$ (1,332,073)
|
| Rental property held for sale, net |
171,578
|
39,743
|
| Disposal Group, Held-for-sale, Not Discontinued Operations [Member] |
|
|
| Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |
|
|
| Land |
|
10,934
|
| Buildings and improvements |
|
68,266
|
| Less - Accumulated depreciation |
|
(31,792)
|
| Less: Unrealized losses on properties held for sale |
|
(7,665)
|
| Rental property held for sale, net |
|
$ 39,743
|
| Parsippany, Paramus, Rochelle Park, Hamilton And Wall, New Jersey And White Plains, New York [Member] | Disposal Group, Held-for-sale, Not Discontinued Operations [Member] |
|
|
| Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |
|
|
| Land |
37,024
|
|
| Buildings and improvements |
273,388
|
|
| Less - Accumulated depreciation |
(126,503)
|
|
| Less: Unrealized losses on properties held for sale |
(12,331)
|
|
| Rental property held for sale, net |
$ 171,578
|
|