Investments In Unconsolidated Joint Ventures (Summary Of Company's Equity In Earnings (Loss) Of Unconsolidated Joint Ventures) (Details) - USD ($)
$ in Thousands |
3 Months Ended |
9 Months Ended |
Sep. 30, 2016 |
Sep. 30, 2015 |
Sep. 30, 2016 |
Sep. 30, 2015 |
| Schedule of Equity Method Investments [Line Items] |
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| Company's equity in earnings of unconsolidated joint ventures |
$ 21,790
|
$ 3,135
|
$ 19,622
|
$ (2,723)
|
| 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 of unconsolidated joint ventures |
22,447
|
1,151
|
23,267
|
1,934
|
| Other [Member] |
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| Schedule of Equity Method Investments [Line Items] |
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| Company's equity in earnings of unconsolidated joint ventures |
(657)
|
1,984
|
(3,645)
|
(4,657)
|
| Unconsolidated Joint Venture Multi-Family Properties [Member] | 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 of unconsolidated joint ventures |
76
|
64
|
208
|
186
|
| Unconsolidated Joint Venture Multi-Family Properties [Member] | 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 of unconsolidated joint ventures |
(277)
|
(295)
|
(869)
|
(924)
|
| Unconsolidated Joint Venture Multi-Family Properties [Member] | 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 of unconsolidated joint ventures |
(76)
|
(93)
|
(239)
|
(277)
|
| Unconsolidated Joint Venture Multi-Family Properties [Member] | Riverwalk G Urban Renewal, L.L.C. [Member] |
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| Schedule of Equity Method Investments [Line Items] |
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| Company's equity in earnings of unconsolidated joint ventures |
(594)
|
(151)
|
(1,189)
|
(681)
|
| Unconsolidated Joint Venture Multi-Family Properties [Member] | 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 of unconsolidated joint ventures |
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| Unconsolidated Joint Venture Multi-Family Properties [Member] | 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 of unconsolidated joint ventures |
(99)
|
(44)
|
(321)
|
(41)
|
| Unconsolidated Joint Venture Multi-Family Properties [Member] | 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 of unconsolidated joint ventures |
(36)
|
(85)
|
(36)
|
(394)
|
| Unconsolidated Joint Venture Multi-Family Properties [Member] | RoseGarden Marbella South, L.L.C. [Member] |
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| Schedule of Equity Method Investments [Line Items] |
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| Company's equity in earnings of unconsolidated joint ventures |
105
|
|
(202)
|
|
| Unconsolidated Joint Venture Multi-Family Properties [Member] | 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 of unconsolidated joint ventures |
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| Unconsolidated Joint Venture Multi-Family Properties [Member] | 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 of unconsolidated joint ventures |
(43)
|
(54)
|
(173)
|
(377)
|
| Unconsolidated Joint Venture Multi-Family Properties [Member] | 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 of unconsolidated joint ventures |
(500)
|
(1,454)
|
(1,995)
|
(2,642)
|
| Unconsolidated Joint Venture Multi-Family Properties [Member] | 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 of unconsolidated joint ventures |
(42)
|
|
(60)
|
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| Unconsolidated Joint Venture Multi-Family Properties [Member] | RoseGarden Monaco, L.L.C. [Member] |
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| Schedule of Equity Method Investments [Line Items] |
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| Company's equity in earnings of unconsolidated joint ventures |
|
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| Unconsolidated Joint Venture Multi-Family Properties [Member] | Grand Jersey Waterfront URA, L.L.C. [Member] |
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| Schedule of Equity Method Investments [Line Items] |
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| Company's equity in earnings of unconsolidated joint ventures |
|
(12)
|
(60)
|
(32)
|
| Unconsolidated Joint Venture Multi-Family Properties [Member] | 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 of unconsolidated joint ventures |
(22)
|
|
(53)
|
(5)
|
| Unconsolidated Joint Venture Multi-Family Properties [Member] | 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 of unconsolidated joint ventures |
81
|
102
|
256
|
258
|
| Unconsolidated Joint Venture Office Buildings [Member] | 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 of unconsolidated joint ventures |
111
|
110
|
321
|
332
|
| Unconsolidated Joint Venture Office Buildings [Member] | 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 of unconsolidated joint ventures |
74
|
38
|
266
|
110
|
| Unconsolidated Joint Venture Office Buildings [Member] | BNES Associates III [Member] |
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| Schedule of Equity Method Investments [Line Items] |
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| Company's equity in earnings of unconsolidated joint ventures |
109
|
13
|
(68)
|
133
|
| Unconsolidated Joint Venture Office Buildings [Member] | 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 of unconsolidated joint ventures |
|
(37)
|
|
(800)
|
| Unconsolidated Joint Venture Office Buildings [Member] | Keystone-Penn [Member] |
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| Schedule of Equity Method Investments [Line Items] |
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| Company's equity in earnings of unconsolidated joint ventures |
150
|
3,663
|
450
|
3,663
|
| Unconsolidated Joint Venture Office Buildings [Member] | Keystone-TriState [Member] |
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| Schedule of Equity Method Investments [Line Items] |
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| Company's equity in earnings of unconsolidated joint ventures |
(518)
|
(173)
|
(1,186)
|
(1,763)
|
| Unconsolidated Joint Venture Office Buildings [Member] | KPG-MCG Curtis JV, LLC [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 of unconsolidated joint ventures |
113
|
327
|
518
|
755
|
| Unconsolidated Joint Venture Other Property [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 of unconsolidated joint ventures |
21,790
|
3,135
|
19,622
|
(2,723)
|
| Unconsolidated Joint Venture Other Property [Member] | 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 of unconsolidated joint ventures |
(14)
|
(17)
|
(39)
|
(52)
|
| Unconsolidated Joint Venture Other Property [Member] | South Pier At Harborside [Member] |
|
|
|
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| Schedule of Equity Method Investments [Line Items] |
|
|
|
|
| Company's equity in earnings of unconsolidated joint ventures |
22,447
|
1,151
|
23,267
|
1,934
|
| Unconsolidated Joint Venture Other Property [Member] | Other [Member] |
|
|
|
|
| Schedule of Equity Method Investments [Line Items] |
|
|
|
|
| Company's equity in earnings of unconsolidated joint ventures |
$ 745
|
$ 82
|
$ 826
|
$ (2,106)
|