Recent Transactions (Summary Of Income From Property Held For Sale, Net) (Details) - USD ($) $ in Thousands |
Dec. 31, 2018 |
Dec. 31, 2017 |
| Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |
|
|
| Less - Accumulated depreciation |
$ (1,097,868)
|
$ (1,087,083)
|
| Rental property held for sale, net |
108,848
|
171,578
|
| Fort Lee, Newark, Paramus, Bridgewater, Morris Plains And Rahway, New Jersey [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 |
24,376
|
|
| Buildings and improvements |
159,857
|
|
| Less - Accumulated depreciation |
(55,250)
|
|
| Less: Unrealized losses on properties held for sale |
(20,135)
|
|
| Rental property held for sale, net |
$ 108,848
|
|
| 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
|