Quarterly report pursuant to Section 13 or 15(d)

Investments In Unconsolidated Joint Ventures (Summary Of Company's Equity In Earnings (Loss) Of Unconsolidated Joint Ventures) (Details)

v3.19.1
Investments In Unconsolidated Joint Ventures (Summary Of Company's Equity In Earnings (Loss) Of Unconsolidated Joint Ventures) (Details) - USD ($)
$ in Thousands
 3 Months Ended
Feb. 28, 2019
Jan. 31, 2019
Jan. 30, 2019
Mar. 31, 2019
Mar. 31, 2018
Schedule of Equity Method Investments [Line Items]          
Company's equity in earnings (loss) of unconsolidated joint ventures       $ (681) $ 1,572
Amortization of basis difference       172 289
PI North Pier Land [Member]          
Schedule of Equity Method Investments [Line Items]          
Company's equity in earnings (loss) of unconsolidated joint ventures       (70)  
Red Bank [Member]          
Schedule of Equity Method Investments [Line Items]          
Percentage of interest sold 50.00%        
Gain on sale $ 900        
Unconsolidated Joint Venture Multi-Family Properties [Member] | Marbella I [Member]          
Schedule of Equity Method Investments [Line Items]          
Company's equity in earnings (loss) of unconsolidated joint ventures         91
Unconsolidated Joint Venture Multi-Family Properties [Member] | Metropolitan At 40 Park [Member]          
Schedule of Equity Method Investments [Line Items]          
Company's equity in earnings (loss) of unconsolidated joint ventures       (77) (75)
Unconsolidated Joint Venture Multi-Family Properties [Member] | RiverTrace At Port Imperial [Member]          
Schedule of Equity Method Investments [Line Items]          
Company's equity in earnings (loss) of unconsolidated joint ventures       38 44
Unconsolidated Joint Venture Multi-Family Properties [Member] | Marbella Tower Urban Renewal Associates LLC [Member]          
Schedule of Equity Method Investments [Line Items]          
Percentage of additional interest acquired   50.00% 50.00%    
Unconsolidated Joint Venture Multi-Family Properties [Member] | Crystal House [Member]          
Schedule of Equity Method Investments [Line Items]          
Company's equity in earnings (loss) of unconsolidated joint ventures       (226) (162)
Unconsolidated Joint Venture Multi-Family Properties [Member] | Marbella II [Member]          
Schedule of Equity Method Investments [Line Items]          
Company's equity in earnings (loss) of unconsolidated joint ventures       (15) 22
Unconsolidated Joint Venture Multi-Family Properties [Member] | Riverpark At Harrison [Member]          
Schedule of Equity Method Investments [Line Items]          
Company's equity in earnings (loss) of unconsolidated joint ventures       (60) (63)
Unconsolidated Joint Venture Multi-Family Properties [Member] | Station House [Member]          
Schedule of Equity Method Investments [Line Items]          
Company's equity in earnings (loss) of unconsolidated joint ventures       (556) (428)
Unconsolidated Joint Venture Multi-Family Properties [Member] | Urby At Harborside [Member]          
Schedule of Equity Method Investments [Line Items]          
Company's equity in earnings (loss) of unconsolidated joint ventures       (458) 1,721
Economic tax credit certificate income       $ 2,600  
Period of venture agreement to sell economic tax credit       9 years  
Annual proceeds from economic tax credit       $ 3,000  
Total proceeds from economic tax credit       27,000  
Unconsolidated Joint Venture Multi-Family Properties [Member] | Hillsborough 206 [Member]          
Schedule of Equity Method Investments [Line Items]          
Company's equity in earnings (loss) of unconsolidated joint ventures         16
Unconsolidated Joint Venture Office Buildings [Member] | Red Bank [Member]          
Schedule of Equity Method Investments [Line Items]          
Company's equity in earnings (loss) of unconsolidated joint ventures       8 (74)
Gain on sale $ 900        
Unconsolidated Joint Venture Office Buildings [Member] | 12 Vreeland Road [Member]          
Schedule of Equity Method Investments [Line Items]          
Company's equity in earnings (loss) of unconsolidated joint ventures       45 59
Unconsolidated Joint Venture Office Buildings [Member] | Offices At Crystal Lake [Member]          
Schedule of Equity Method Investments [Line Items]          
Company's equity in earnings (loss) of unconsolidated joint ventures       45 26
Unconsolidated Joint Venture Other Property [Member]          
Schedule of Equity Method Investments [Line Items]          
Company's equity in earnings (loss) of unconsolidated joint ventures       (681) 1,572
Unconsolidated Joint Venture Other Property [Member] | Riverwalk Retail [Member]          
Schedule of Equity Method Investments [Line Items]          
Company's equity in earnings (loss) of unconsolidated joint ventures       (21) (25)
Unconsolidated Joint Venture Other Property [Member] | Hyatt Regency Jersey City [Member]          
Schedule of Equity Method Investments [Line Items]          
Company's equity in earnings (loss) of unconsolidated joint ventures       638 310
Unconsolidated Joint Venture Other Property [Member] | Other [Member]          
Schedule of Equity Method Investments [Line Items]          
Company's equity in earnings (loss) of unconsolidated joint ventures       $ 28 $ 110