Quarterly report pursuant to Section 13 or 15(d)

Investments In Unconsolidated Joint Ventures (Summary Of Unconsolidated Joint Ventures) (Details)

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Investments In Unconsolidated Joint Ventures (Summary Of Unconsolidated Joint Ventures) (Details)
$ in Thousands
9 Months Ended
Aug. 02, 2018
USD ($)
item
Aug. 01, 2018
USD ($)
item
Mar. 30, 2018
USD ($)
item
Sep. 30, 2018
USD ($)
ft²
item
Dec. 31, 2017
USD ($)
Schedule of Equity Method Investments [Line Items]          
Number of units | item       1,153  
Carrying Value       $ 230,614 $ 252,626
Minimum [Member]          
Schedule of Equity Method Investments [Line Items]          
Company's Effective Ownership %       12.50%  
Maximum [Member]          
Schedule of Equity Method Investments [Line Items]          
Company's Effective Ownership %       85.00%  
Marbella Tower Urban Renewal Associates LLC [Member]          
Schedule of Equity Method Investments [Line Items]          
Number of units | item 412        
Company's Effective Ownership % 24.27% 24.27%      
Mortgage loan $ 131,000 $ 95,000      
Property Debt, Maturity Date       Aug. 01, 2026  
Property Debt, Interest Rate, Spread Over LIBOR 4.07%        
Percentage of additional interest acquired 50.00%        
Crystal House [Member]          
Schedule of Equity Method Investments [Line Items]          
Percentage of interest in developable land       50.00%  
Number of units available for development | item       295  
Number of approved units available for development | item       252  
PI North - Riverwalk C [Member] | Construction Loan [Member]          
Schedule of Equity Method Investments [Line Items]          
Maximum borrowing capacity       $ 112,000  
Marbella II [Member] | Construction Loan [Member]          
Schedule of Equity Method Investments [Line Items]          
Number of extension options | item     4    
Loan extension period     3 months    
Extension fee     0.0625%    
Maximum borrowing capacity     $ 75,000    
Urby At Harborside [Member] | Construction/Permanent Loan [Member]          
Schedule of Equity Method Investments [Line Items]          
Company's Effective Ownership %       85.00%  
Maximum borrowing capacity       $ 192,000  
PI North - Land [Member]          
Schedule of Equity Method Investments [Line Items]          
Number of units | item       836  
Residual ownership interest       20.00%  
Red Bank [Member]          
Schedule of Equity Method Investments [Line Items]          
Property Debt, Maturity Date       Aug. 01, 2023  
Property Debt, Interest Rate, Spread Over LIBOR       2.25%  
Number of extension options | item   2      
Maximum borrowing capacity   $ 16,500      
The Shops At 40 Park Property [Member] | Metropolitan At 40 Park [Member]          
Schedule of Equity Method Investments [Line Items]          
Rentable Square Feet (sf) | ft²       50,973  
Mortgage loan       $ 6,067  
Property Debt, Maturity Date       Sep. 01, 2019  
Property Debt, Interest Rate, Spread Over LIBOR       2.25%  
Residual ownership interest       12.50%  
Lofts At 40 Park Property [Member] | Metropolitan At 40 Park [Member]          
Schedule of Equity Method Investments [Line Items]          
Number of units | item       59  
Indirect ownership interest       25.00%  
Number of stories | item       5  
Lofts At 40 Park Property [Member] | Metropolitan At 40 Park [Member] | Construction Loan [Member]          
Schedule of Equity Method Investments [Line Items]          
Mortgage loan       $ 13,145  
Property Debt, Maturity Date       Feb. 01, 2020  
Property Debt, Interest Rate, Spread Over LIBOR       2.50%  
Maximum borrowing capacity       $ 13,950  
Metropolitan Property [Member] | Metropolitan At 40 Park [Member]          
Schedule of Equity Method Investments [Line Items]          
Mortgage loan       $ 36,224  
Property Debt, Maturity Date       Sep. 01, 2020  
Property Debt, Interest Rate       3.25%  
Unconsolidated Joint Venture Multi-Family Properties [Member]          
Schedule of Equity Method Investments [Line Items]          
Number of units | item       2,922  
Unconsolidated Joint Venture Multi-Family Properties [Member] | Marbella [Member]          
Schedule of Equity Method Investments [Line Items]          
Number of units | item       412  
Company's Effective Ownership %       24.27%  
Carrying Value         14,544
Property Debt, Interest Rate, LIBOR       -  
Unconsolidated Joint Venture Multi-Family Properties [Member] | Metropolitan At 40 Park [Member]          
Schedule of Equity Method Investments [Line Items]          
Number of units | item       189  
Company's Effective Ownership %       12.50%  
Carrying Value       $ 6,472 6,834
Mortgage loan       $ 55,436  
Property Debt, Interest Rate        
Unconsolidated Joint Venture Multi-Family Properties [Member] | RiverTrace At Port Imperial [Member]          
Schedule of Equity Method Investments [Line Items]          
Number of units | item       316  
Company's Effective Ownership %       22.50%  
Carrying Value       $ 8,311 8,864
Mortgage loan       $ 82,000  
Property Debt, Maturity Date       Nov. 10, 2026  
Property Debt, Interest Rate       3.21%  
Unconsolidated Joint Venture Multi-Family Properties [Member] | Crystal House [Member]          
Schedule of Equity Method Investments [Line Items]          
Number of units | item       825  
Company's Effective Ownership %       25.00%  
Carrying Value       $ 29,252 30,570
Mortgage loan       $ 163,661  
Property Debt, Maturity Date       Apr. 01, 2020  
Property Debt, Interest Rate       3.17%  
Unconsolidated Joint Venture Multi-Family Properties [Member] | PI North - Riverwalk C [Member]          
Schedule of Equity Method Investments [Line Items]          
Number of units | item       360  
Company's Effective Ownership %       40.00%  
Carrying Value       $ 23,342 16,844
Property Debt, Maturity Date       Dec. 06, 2021  
Property Debt, Interest Rate, LIBOR       L+2.75  
Property Debt, Interest Rate, Spread Over LIBOR       2.75%  
Unconsolidated Joint Venture Multi-Family Properties [Member] | Marbella II [Member]          
Schedule of Equity Method Investments [Line Items]          
Number of units | item       311  
Company's Effective Ownership %       24.27%  
Carrying Value       $ 15,705 16,471
Mortgage loan       $ 74,690  
Property Debt, Maturity Date       Mar. 30, 2019  
Property Debt, Interest Rate, LIBOR       L+2.25  
Property Debt, Interest Rate, Spread Over LIBOR       2.25%  
Unconsolidated Joint Venture Multi-Family Properties [Member] | Riverpark At Harrison [Member]          
Schedule of Equity Method Investments [Line Items]          
Number of units | item       141  
Company's Effective Ownership %       45.00%  
Carrying Value       $ 1,343 1,604
Mortgage loan       $ 29,957  
Property Debt, Maturity Date       Aug. 01, 2025  
Property Debt, Interest Rate       3.70%  
Unconsolidated Joint Venture Multi-Family Properties [Member] | Station House [Member]          
Schedule of Equity Method Investments [Line Items]          
Number of units | item       378  
Company's Effective Ownership %       50.00%  
Carrying Value       $ 38,329 40,124
Mortgage loan       $ 98,902  
Property Debt, Maturity Date       Jul. 01, 2033  
Property Debt, Interest Rate       4.82%  
Unconsolidated Joint Venture Multi-Family Properties [Member] | Urby At Harborside [Member]          
Schedule of Equity Method Investments [Line Items]          
Number of units | item       762  
Company's Effective Ownership %       85.00%  
Carrying Value       $ 87,723 94,429
Mortgage loan       $ 191,732  
Property Debt, Maturity Date       Aug. 01, 2029  
Property Debt, Interest Rate       5.197%  
Unconsolidated Joint Venture Multi-Family Properties [Member] | PI North - Land [Member]          
Schedule of Equity Method Investments [Line Items]          
Number of units | item       836  
Company's Effective Ownership %       20.00%  
Carrying Value       $ 1,678 1,678
Unconsolidated Joint Venture Multi-Family Properties [Member] | Liberty Landing [Member]          
Schedule of Equity Method Investments [Line Items]          
Number of units | item       850  
Company's Effective Ownership %       50.00%  
Carrying Value       $ 337 337
Unconsolidated Joint Venture Multi-Family Properties [Member] | Hillsborough 206 [Member]          
Schedule of Equity Method Investments [Line Items]          
Rentable Square Feet (sf) | ft²       160,000  
Company's Effective Ownership %       50.00%  
Carrying Value       $ 1,962 1,962
Unconsolidated Joint Venture Office Buildings [Member]          
Schedule of Equity Method Investments [Line Items]          
Rentable Square Feet (sf) | ft²       500,000  
Unconsolidated Joint Venture Office Buildings [Member] | Red Bank [Member]          
Schedule of Equity Method Investments [Line Items]          
Rentable Square Feet (sf) | ft²       92,878  
Company's Effective Ownership %       50.00%  
Carrying Value       $ 3,148 4,602
Mortgage loan       $ 14,000  
Property Debt, Maturity Date       Aug. 01, 2023  
Property Debt, Interest Rate, LIBOR       L+2.25  
Property Debt, Interest Rate, Spread Over LIBOR       2.25%  
Unconsolidated Joint Venture Office Buildings [Member] | 12 Vreeland Road [Member]          
Schedule of Equity Method Investments [Line Items]          
Rentable Square Feet (sf) | ft²       139,750  
Company's Effective Ownership %       50.00%  
Carrying Value       $ 6,891 6,734
Mortgage loan       $ 8,306  
Property Debt, Maturity Date       Jul. 01, 2023  
Property Debt, Interest Rate       2.87%  
Unconsolidated Joint Venture Office Buildings [Member] | Offices At Crystal Lake [Member]          
Schedule of Equity Method Investments [Line Items]          
Rentable Square Feet (sf) | ft²       106,345  
Company's Effective Ownership %       31.25%  
Carrying Value       $ 3,425 3,369
Mortgage loan       $ 4,258  
Property Debt, Maturity Date       Nov. 01, 2023  
Property Debt, Interest Rate       4.76%  
Unconsolidated Joint Venture Other Property [Member]          
Schedule of Equity Method Investments [Line Items]          
Carrying Value       $ 230,614 252,626
Mortgage loan       $ 822,942  
Unconsolidated Joint Venture Other Property [Member] | Riverwalk Retail [Member]          
Schedule of Equity Method Investments [Line Items]          
Rentable Square Feet (sf) | ft²       30,745  
Company's Effective Ownership %       20.00%  
Carrying Value       $ 1,560 1,625
Unconsolidated Joint Venture Other Property [Member] | Hyatt Regency Jersey City [Member]          
Schedule of Equity Method Investments [Line Items]          
Number of units | item       351  
Company's Effective Ownership %       50.00%  
Carrying Value       440
Mortgage loan       $ 100,000  
Property Debt, Maturity Date       Oct. 01, 2026  
Property Debt, Interest Rate       3.668%  
Unconsolidated Joint Venture Other Property [Member] | Other [Member]          
Schedule of Equity Method Investments [Line Items]          
Carrying Value       $ 1,136 $ 1,595