Recent Transactions (Schedule Of Real Estate Held For Sale/Discontinued Operations/Dispositions) (Details) - USD ($) $ in Thousands |
Sep. 30, 2020 |
Dec. 31, 2019 |
| Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |
|
|
| Less: Accumulated depreciation |
$ (627,995)
|
$ (558,617)
|
| Real estate held for sale, net |
714,404
|
$ 966,497
|
| 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 |
189,064
|
|
| Buildings & Other |
902,776
|
|
| Less: Accumulated depreciation |
(227,848)
|
|
| Less: Cumulative unrealized losses on property held for sale |
(149,588)
|
|
| Real estate held for sale, net |
714,404
|
|
| Unbilled rents receivable, net |
24,255
|
|
| Deferred charges, net |
22,309
|
|
| Total intangibles, net |
26,208
|
|
| Total deferred charges & other assets, net |
51,202
|
|
| Mortgages & loans payable, net |
123,738
|
|
| Total below market liability |
7,092
|
|
| Accounts payable, accrued exp & other liability |
20,819
|
|
| Unearned rents/deferred rental income |
4,768
|
|
| Disposal Group, Held-for-sale, Not Discontinued Operations [Member] | Other Assets Held for Sale [Member] |
|
|
| Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |
|
|
| Land |
84,180
|
|
| Buildings & Other |
40,290
|
|
| Less: Accumulated depreciation |
(7,991)
|
|
| Less: Cumulative unrealized losses on property held for sale |
(44,140)
|
|
| Real estate held for sale, net |
72,339
|
|
| Unbilled rents receivable, net |
2,048
|
|
| Deferred charges, net |
773
|
|
| Total deferred charges & other assets, net |
789
|
|
| Accounts payable, accrued exp & other liability |
255
|
|
| Unearned rents/deferred rental income |
203
|
|
| Suburban Office Portfolio [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 |
104,884
|
|
| Buildings & Other |
862,486
|
|
| Less: Accumulated depreciation |
(219,857)
|
|
| Less: Cumulative unrealized losses on property held for sale |
(105,448)
|
|
| Real estate held for sale, net |
642,065
|
|
| Unbilled rents receivable, net |
22,207
|
|
| Deferred charges, net |
21,536
|
|
| Total intangibles, net |
26,208
|
|
| Total deferred charges & other assets, net |
50,413
|
|
| Mortgages & loans payable, net |
123,738
|
|
| Total below market liability |
7,092
|
|
| Accounts payable, accrued exp & other liability |
20,564
|
|
| Unearned rents/deferred rental income |
$ 4,565
|
|