Quarterly report pursuant to Section 13 or 15(d)

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

v3.21.2
Investments In Unconsolidated Joint Ventures (Summary Of Unconsolidated Joint Ventures) (Details)
$ in Thousands
 6 Months Ended
Apr. 29, 2021
USD ($)
Jun. 30, 2021
USD ($)
ft²
item
Jun. 30, 2020
USD ($)
Dec. 31, 2020
USD ($)
Schedule of Equity Method Investments [Line Items]        
Carrying Value   $ 154,914   $ 162,382
Purchase price of property   $ 32,077 $ 104,411  
Minimum [Member]        
Schedule of Equity Method Investments [Line Items]        
Company's Effective Ownership %   20.00%    
Maximum [Member]        
Schedule of Equity Method Investments [Line Items]        
Company's Effective Ownership %   85.00%    
PI North - Riverwalk C [Member] | Construction Loan [Member]        
Schedule of Equity Method Investments [Line Items]        
Maximum borrowing capacity   $ 112,000    
Percent of principal loan outstanding   10.00%    
PI North - Land [Member]        
Schedule of Equity Method Investments [Line Items]        
Number of Apartment Units | item   771    
Residual ownership interest   20.00%    
12 Vreeland Road [Member]        
Schedule of Equity Method Investments [Line Items]        
Gain on sale $ 2,000      
The Shops At 40 Park Property [Member] | Metropolitan And Lofts At 40 Park [Member]        
Schedule of Equity Method Investments [Line Items]        
Rentable Square Feet (sf) | ft²   50,973    
Balance   $ 6,067    
Property Debt, Interest Rate, Spread Over LIBOR   0.015%    
Residual ownership interest   25.00%    
Mortgage loan, maturity month and year   October 2021    
Lofts At 40 Park Property [Member] | Metropolitan And Lofts At 40 Park [Member]        
Schedule of Equity Method Investments [Line Items]        
Number of Apartment Units | item   59    
Balance   $ 18,200    
Property Debt, Interest Rate, Spread Over LIBOR   0.015%    
Indirect ownership interest   50.00%    
Number of stories | item   5    
Mortgage loan, maturity month and year   January 2023    
Metropolitan Property [Member] | Metropolitan And Lofts At 40 Park [Member]        
Schedule of Equity Method Investments [Line Items]        
Balance   $ 36,500    
Property Debt, Interest Rate, Spread Over LIBOR   0.0285%    
Mortgage loan, maturity month and year   October 2023    
Unconsolidated Joint Venture Multi-Family Properties [Member]        
Schedule of Equity Method Investments [Line Items]        
Number of Apartment Units | item   1,786    
Unconsolidated Joint Venture Multi-Family Properties [Member] | Metropolitan And Lofts At 40 Park [Member]        
Schedule of Equity Method Investments [Line Items]        
Number of Apartment Units | item   189    
Company's Effective Ownership %   25.00%    
Carrying Value   $ 2,851   3,347
Balance   $ 60,767    
Unconsolidated Joint Venture Multi-Family Properties [Member] | RiverTrace At Port Imperial [Member]        
Schedule of Equity Method Investments [Line Items]        
Number of Apartment Units | item   316    
Company's Effective Ownership %   22.50%    
Carrying Value   $ 6,320   6,667
Balance   $ 82,000    
Property Debt, Maturity Date   Nov. 10, 2026    
Property Debt, Interest Rate   3.21%    
Unconsolidated Joint Venture Multi-Family Properties [Member] | PI North - Riverwalk C [Member]        
Schedule of Equity Method Investments [Line Items]        
Number of Apartment Units | item   360    
Company's Effective Ownership %   40.00%    
Carrying Value   $ 36,632   36,992
Balance   $ 96,419    
Property Debt, Maturity Date   Dec. 06, 2021    
Property Debt, Interest Rate   2.75%    
Unconsolidated Joint Venture Multi-Family Properties [Member] | Riverpark At Harrison [Member]        
Schedule of Equity Method Investments [Line Items]        
Number of Apartment Units | item   141    
Company's Effective Ownership %   45.00%    
Carrying Value   $ 507   681
Balance   $ 30,192    
Property Debt, Maturity Date   Jul. 01, 2035    
Property Debt, Interest Rate   3.19%    
Unconsolidated Joint Venture Multi-Family Properties [Member] | Station House [Member]        
Schedule of Equity Method Investments [Line Items]        
Number of Apartment Units | item   378    
Company's Effective Ownership %   50.00%    
Carrying Value   $ 33,508   34,026
Balance   $ 94,244    
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 Apartment Units | item   762    
Company's Effective Ownership %   85.00%    
Carrying Value   $ 69,124   72,752
Balance   $ 192,000    
Property Debt, Maturity Date   Aug. 01, 2029    
Property Debt, Interest Rate   5.197%    
Guaranteed amount   $ 22,000    
Unconsolidated Joint Venture Multi-Family Properties [Member] | PI North - Land [Member]        
Schedule of Equity Method Investments [Line Items]        
Number of Apartment Units | item   771    
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 Apartment Units | item   850    
Company's Effective Ownership %   50.00%    
Carrying Value   $ 337   337
Unconsolidated Joint Venture Office Buildings [Member]        
Schedule of Equity Method Investments [Line Items]        
Rentable Square Feet (sf) | ft²   100,000    
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       1,811
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   $ 3,610   3,744
Balance   $ 2,122    
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   $ 154,914   162,382
Balance   $ 657,744    
Unconsolidated Joint Venture Other Property [Member] | Hyatt Regency Hotel Jersey City [Member]        
Schedule of Equity Method Investments [Line Items]        
Number of Apartment Units | item   351    
Company's Effective Ownership %   50.00%    
Balance   $ 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   $ 347   $ 347