Investments In Unconsolidated Joint Ventures (Summary Of Company's Equity In Earnings (Loss) Of Unconsolidated Joint Ventures) (Details) - USD ($) $ in Thousands |
3 Months Ended |
6 Months Ended |
Jun. 30, 2015 |
Jun. 30, 2014 |
Jun. 30, 2015 |
Jun. 30, 2014 |
| Schedule of Equity Method Investments [Line Items] |
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| Company's equity in earnings (loss) of unconsolidated joint ventures |
$ (2,329)
|
$ 443
|
$ (5,858)
|
$ (792)
|
| Marbella RoseGarden, L.L.C. [Member] |
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| Schedule of Equity Method Investments [Line Items] |
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| Company's equity in earnings (loss) of unconsolidated joint ventures |
61
|
(9)
|
122
|
(15)
|
| RoseGarden Monaco Holdings, L.L.C. [Member] |
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| Schedule of Equity Method Investments [Line Items] |
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| Company's equity in earnings (loss) of unconsolidated joint ventures |
(313)
|
(238)
|
(629)
|
(515)
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| Rosewood Lafayette Holdings, L.L.C. [Member] |
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| Schedule of Equity Method Investments [Line Items] |
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| Company's equity in earnings (loss) of unconsolidated joint ventures |
|
(203)
|
(62)
|
(419)
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| Rosewood Morristown, L.L.C. [Member] |
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| Schedule of Equity Method Investments [Line Items] |
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| Company's equity in earnings (loss) of unconsolidated joint ventures |
(91)
|
(76)
|
(185)
|
(174)
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| Overlook Ridge JV 2C/3B, L.L.C. [Member] |
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| Schedule of Equity Method Investments [Line Items] |
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| Company's equity in earnings (loss) of unconsolidated joint ventures |
(27)
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|
(247)
|
62
|
| PruRose Riverwalk G, L.L.C. [Member] |
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| Schedule of Equity Method Investments [Line Items] |
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| Company's equity in earnings (loss) of unconsolidated joint ventures |
(276)
|
(613)
|
(530)
|
(1,151)
|
| Elmajo Urban Renewal Associates, L.L.C. [Member] |
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| Schedule of Equity Method Investments [Line Items] |
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| Company's equity in earnings (loss) of unconsolidated joint ventures |
|
(91)
|
|
(203)
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| Crystal House Apartments Investors LLC [Member] |
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| Schedule of Equity Method Investments [Line Items] |
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| Company's equity in earnings (loss) of unconsolidated joint ventures |
13
|
53
|
3
|
(274)
|
| Portside Master Company, L.L.C. [Member] |
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| Schedule of Equity Method Investments [Line Items] |
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| Company's equity in earnings (loss) of unconsolidated joint ventures |
(637)
|
(220)
|
(1,357)
|
(434)
|
| PruRose Port Imperial South 13, L.L.C. [Member] |
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| Schedule of Equity Method Investments [Line Items] |
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| Company's equity in earnings (loss) of unconsolidated joint ventures |
(506)
|
(213)
|
(731)
|
(418)
|
| Roseland/Port Imperial Partners, L.P. [Member] |
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| Schedule of Equity Method Investments [Line Items] |
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| Company's equity in earnings (loss) of unconsolidated joint ventures |
(125)
|
(180)
|
(309)
|
(345)
|
| Estuary Urban Renewal Unit B, LLC [Member] |
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| Schedule of Equity Method Investments [Line Items] |
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| Company's equity in earnings (loss) of unconsolidated joint ventures |
|
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(15)
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| RiverPark At Harrison I, L.L.C. [Member] |
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| Schedule of Equity Method Investments [Line Items] |
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| Company's equity in earnings (loss) of unconsolidated joint ventures |
(150)
|
|
(324)
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| Capitol Place Mezz LLC [Member] |
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| Schedule of Equity Method Investments [Line Items] |
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| Company's equity in earnings (loss) of unconsolidated joint ventures |
(1,263)
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|
(1,188)
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| Harborside Unit A Urban Renewal, LLC [Member] |
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| Schedule of Equity Method Investments [Line Items] |
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| Company's equity in earnings (loss) of unconsolidated joint ventures |
|
(212)
|
|
(212)
|
| Grand Jersey Waterfront Urban Renewal Associates, L.L.C. [Member] |
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| Schedule of Equity Method Investments [Line Items] |
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| Company's equity in earnings (loss) of unconsolidated joint ventures |
|
(16)
|
(19)
|
(54)
|
| Red Bank Corporate Plaza, L.L.C. [Member] |
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| Schedule of Equity Method Investments [Line Items] |
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| Company's equity in earnings (loss) of unconsolidated joint ventures |
112
|
106
|
222
|
205
|
| 12 Vreeland Associates, L.L.C. [Member] |
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| Schedule of Equity Method Investments [Line Items] |
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| Company's equity in earnings (loss) of unconsolidated joint ventures |
86
|
54
|
72
|
144
|
| BNES Associates III [Member] |
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| Schedule of Equity Method Investments [Line Items] |
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| Company's equity in earnings (loss) of unconsolidated joint ventures |
52
|
110
|
121
|
147
|
| Hillsborough 206 Holdings, L.L.C. [Member] |
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| Schedule of Equity Method Investments [Line Items] |
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| Company's equity in earnings (loss) of unconsolidated joint ventures |
(5)
|
|
(5)
|
(5)
|
| KPG-P 100 IMW JV, LLC [Member] |
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| Schedule of Equity Method Investments [Line Items] |
|
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| Company's equity in earnings (loss) of unconsolidated joint ventures |
(379)
|
(483)
|
(763)
|
(1,136)
|
| Keystone-TriState [Member] |
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| Schedule of Equity Method Investments [Line Items] |
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| Company's equity in earnings (loss) of unconsolidated joint ventures |
(242)
|
|
(1,590)
|
|
| KPG-MCG Curtis JV, LLC [Member] |
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| Schedule of Equity Method Investments [Line Items] |
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| Company's equity in earnings (loss) of unconsolidated joint ventures |
232
|
251
|
428
|
251
|
| Plaza VIII & IX Associates, L.L.C. [Member] |
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| Schedule of Equity Method Investments [Line Items] |
|
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| Company's equity in earnings (loss) of unconsolidated joint ventures |
70
|
44
|
156
|
146
|
| Roseland/North Retail, L.L.C. [Member] |
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| Schedule of Equity Method Investments [Line Items] |
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| Company's equity in earnings (loss) of unconsolidated joint ventures |
(18)
|
(23)
|
(36)
|
(47)
|
| South Pier At Harborside [Member] |
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| Schedule of Equity Method Investments [Line Items] |
|
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| Company's equity in earnings (loss) of unconsolidated joint ventures |
868
|
892
|
784
|
1,290
|
| Stamford SM LLC [Member] |
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|
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| Schedule of Equity Method Investments [Line Items] |
|
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| Company's equity in earnings (loss) of unconsolidated joint ventures |
|
928
|
|
1,844
|
| Other [Member] |
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| Schedule of Equity Method Investments [Line Items] |
|
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|
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| Company's equity in earnings (loss) of unconsolidated joint ventures |
$ 209
|
$ 582
|
$ 209
|
$ 536
|