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
 3 Months Ended
Sep. 01, 2021
USD ($)
Mar. 31, 2022
USD ($)
ft²
item
Mar. 31, 2021
USD ($)
Dec. 31, 2021
USD ($)
Schedule of Equity Method Investments [Line Items]        
Carrying Value   $ 135,116   $ 137,772
Purchase price of property   $ 8,163 $ 16,978  
PI North - Land [Member]        
Schedule of Equity Method Investments [Line Items]        
Number of Apartment Units | item   771    
Residual ownership interest   20.00%    
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    
Residual ownership interest   25.00%    
Lofts At 40 Park Property [Member] | Debt Maturity C [Member]        
Schedule of Equity Method Investments [Line Items]        
Balance   $ 6,067    
Property Debt, Interest Rate, Spread Over LIBOR   1.50%    
Lofts At 40 Park Property [Member] | Debt Maturity D [Member]        
Schedule of Equity Method Investments [Line Items]        
Balance   $ 18,200    
Property Debt, Interest Rate, Spread Over LIBOR   1.50%    
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    
Indirect ownership interest   50.00%    
Number of stories | item   5    
Metropolitan Property [Member] | Debt Maturity B [Member]        
Schedule of Equity Method Investments [Line Items]        
Balance   $ 36,500    
Property Debt, Interest Rate, Spread Over LIBOR   2.85%    
Unconsolidated Joint Venture Multi-Family Properties [Member]        
Schedule of Equity Method Investments [Line Items]        
Number of Apartment Units | item   2,146    
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   $ 2,282   2,547
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   $ 5,894   6,077
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   $ 26,596   27,401
Balance   $ 135,000    
Property Debt, Maturity Date   Dec. 22, 2024    
Property Debt, Interest Rate   1.20%    
Unconsolidated Joint Venture Multi-Family Properties [Member] | PI North - Riverwalk C [Member] | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]        
Schedule of Equity Method Investments [Line Items]        
Property Debt, Interest Rate, Spread Over LIBOR   1.20%    
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%    
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   $ 32,646   33,004
Balance   $ 92,863    
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   $ 65,373   66,418
Balance   $ 190,480    
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   $ 300   300
Unconsolidated Joint Venture Office Buildings [Member] | Offices At Crystal Lake [Member]        
Schedule of Equity Method Investments [Line Items]        
Sale price $ 1,900      
Unconsolidated Joint Venture Office Buildings [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]        
Schedule of Equity Method Investments [Line Items]        
Carrying Value   $ 135,116   137,772
Balance   691,302    
Unconsolidated Joint Venture Other Property [Member] | Other [Member]        
Schedule of Equity Method Investments [Line Items]        
Carrying Value   $ 347   $ 347