Quarterly report pursuant to Section 13 or 15(d)

Mortgages, Loans Payable And Other Obligations (Summary Of Mortgages, Loans Payable And Other Obligations) (Details)

v3.19.2
Mortgages, Loans Payable And Other Obligations (Summary Of Mortgages, Loans Payable And Other Obligations) (Details)
6 Months Ended
Jul. 29, 2019
USD ($)
Jun. 28, 2019
USD ($)
Jan. 31, 2019
USD ($)
Jun. 30, 2019
USD ($)
item
Jun. 30, 2018
USD ($)
Jan. 30, 2019
USD ($)
Dec. 31, 2018
USD ($)
Debt Instrument [Line Items]              
Principal balance outstanding       $ 2,687,642,000     $ 2,792,651,000
Borrowings from revolving credit facility       281,000,000 $ 371,000,000    
Payment for borrowings       $ 398,000,000 $ 338,000,000    
Port Imperial 4/5 Hotel [Member]              
Debt Instrument [Line Items]              
Payment for borrowings   $ 30,000,000          
Secured Debt [Member]              
Debt Instrument [Line Items]              
Effective rate       2.50%      
Principal balance outstanding       $ 1,705,896,000     1,440,396,000
Unamortized deferred financing costs       13,333,000     8,998,000
Total mortgages, loans payable and other obligations, net       $ 1,692,563,000     1,431,398,000
Secured Debt [Member] | Park Square Apartments [Member]              
Debt Instrument [Line Items]              
Property Name       Park Square (b)      
Lender       Wells Fargo Bank N.A.      
Effective rate       1.87%      
Principal balance outstanding             25,167,000
Secured Debt [Member] | 250 Johnson Road [Member]              
Debt Instrument [Line Items]              
Property Name       250 Johnson (c)      
Lender       M&T Bank      
Effective rate       2.35%      
Principal balance outstanding       $ 42,000,000     41,769,000
Loan maturity date       Aug. 01, 2019      
Secured Debt [Member] | 250 Johnson Road [Member] | Construction Loan [Member]              
Debt Instrument [Line Items]              
Maximum borrowing capacity       $ 42,000,000      
Secured Debt [Member] | Port Imperial 4/5 Hotel [Member]              
Debt Instrument [Line Items]              
Property Name       Port Imperial 4/5 Hotel (d)      
Lender       Fifth Third Bank & Santander      
Effective rate       4.50%      
Principal balance outstanding       $ 56,636,000     73,350,000
Loan maturity date       Oct. 06, 2019      
Secured Debt [Member] | Port Imperial 4/5 Hotel [Member] | Construction Loan [Member]              
Debt Instrument [Line Items]              
Maximum borrowing capacity       $ 94,000,000      
Number of extension options | item       2      
Loan extension period       1 year      
Extension fee       0.20%      
Secured Debt [Member] | Worcester [Member]              
Debt Instrument [Line Items]              
Property Name       Worcester (e)      
Lender       Citizens Bank      
Effective rate       2.50%      
Principal balance outstanding       $ 57,883,000     56,892,000
Loan maturity date       Dec. 10, 2019      
Secured Debt [Member] | Worcester [Member] | Construction Loan [Member]              
Debt Instrument [Line Items]              
Maximum borrowing capacity       $ 58,000,000      
Number of extension options | item       2      
Loan extension period       1 year      
Extension fee       0.15%      
Secured Debt [Member] | Monaco [Member]              
Debt Instrument [Line Items]              
Property Name       Monaco (f)      
Lender       The Northwestern Mutual Life Insurance Co.      
Effective rate       3.15%      
Principal balance outstanding       $ 167,561,000     168,370,000
Loan maturity date       Feb. 01, 2021      
Adjustment for unamortized debt discount       $ 2,600,000      
Secured Debt [Member] | Port Imperial South 4/5 Retail [Member]              
Debt Instrument [Line Items]              
Property Name       Port Imperial South 4/5 Retail      
Lender       American General Life & A/G PC      
Effective rate       4.56%      
Principal balance outstanding       $ 3,968,000     4,000,000
Loan maturity date       Dec. 01, 2021      
Secured Debt [Member] | Portside 7 [Member]              
Debt Instrument [Line Items]              
Property Name       Portside 7      
Lender       CBRE Capital Markets/FreddieMac      
Effective rate       3.57%      
Principal balance outstanding       $ 58,998,000     58,998,000
Loan maturity date       Aug. 01, 2023      
Secured Debt [Member] | Alterra I & II [Member]              
Debt Instrument [Line Items]              
Property Name       Alterra I & II      
Lender       Capital One/FreddieMac      
Effective rate       3.85%      
Principal balance outstanding       $ 100,000,000     100,000,000
Loan maturity date       Feb. 01, 2024      
Secured Debt [Member] | The Chase At Overlook Ridge [Member]              
Debt Instrument [Line Items]              
Property Name       The Chase at Overlook Ridge      
Lender       New York Community Bank      
Effective rate       3.74%      
Principal balance outstanding       $ 135,750,000     135,750,000
Loan maturity date       Jan. 01, 2025      
Secured Debt [Member] | Portside 5/6 [Member]              
Debt Instrument [Line Items]              
Property Name       Portside 5/6      
Lender       New York Life Insurance Company      
Effective rate       4.56%      
Principal balance outstanding       $ 97,000,000     97,000,000
Loan maturity date       Mar. 10, 2026      
Secured Debt [Member] | Marbella I [Member]              
Debt Instrument [Line Items]              
Property Name       Marbella      
Lender       New York Life Insurance Company      
Effective rate       4.17%      
Principal balance outstanding       $ 131,000,000     131,000,000
Loan maturity date       Aug. 10, 2026      
Secured Debt [Member] | Marbella II [Member]              
Debt Instrument [Line Items]              
Property Name       Marbella II (g)      
Lender       New York Life Insurance Company      
Effective rate       4.29%      
Principal balance outstanding       $ 117,000,000      
Loan maturity date       Aug. 10, 2026      
Secured Debt [Member] | 101 Hudson [Member]              
Debt Instrument [Line Items]              
Property Name       101 Hudson      
Lender       Wells Fargo CMBS      
Effective rate       3.20%      
Principal balance outstanding       $ 250,000,000     250,000,000
Loan maturity date       Oct. 11, 2026      
Secured Debt [Member] | Short Hills Portfolio [Member]              
Debt Instrument [Line Items]              
Property Name       Short Hills Portfolio (h)      
Lender       Wells Fargo CMBS      
Effective rate       4.15%      
Principal balance outstanding       $ 124,500,000     124,500,000
Loan maturity date       Apr. 01, 2027      
Secured Debt [Member] | 150 Main St [Member]              
Debt Instrument [Line Items]              
Property Name       150 Main St.      
Lender       Natixis Real Estate Capital LLC      
Effective rate       4.48%      
Principal balance outstanding       $ 41,000,000     41,000,000
Loan maturity date       Aug. 05, 2027      
Secured Debt [Member] | Port Imperial South 11 [Member]              
Debt Instrument [Line Items]              
Property Name       Port Imperial South 11      
Lender       The Northwestern Mutual Life Insurance Co.      
Effective rate       4.52%      
Principal balance outstanding       $ 100,000,000     100,000,000
Loan maturity date       Jan. 10, 2029      
Secured Debt [Member] | Soho Lofts Apartments [Member]              
Debt Instrument [Line Items]              
Property Name       Soho Lofts (i)      
Lender       New York Community Bank      
Effective rate       3.77%      
Principal balance outstanding       $ 160,000,000      
Loan maturity date       Jul. 01, 2029      
Effective percentage after five years       2.75%      
First period of term period       5 years      
Secured Debt [Member] | Riverwatch Commons [Member]              
Debt Instrument [Line Items]              
Property Name       Riverwatch Commons (i)      
Lender       New York Community Bank      
Effective rate       3.79%      
Principal balance outstanding       $ 30,000,000      
Loan maturity date       Jul. 01, 2029      
Secured Debt [Member] | Port Imperial South 4/5 Garage [Member]              
Debt Instrument [Line Items]              
Property Name       Port Imperial South 4/5 Garage      
Lender       American General Life & A/G PC      
Effective rate       4.85%      
Principal balance outstanding       $ 32,600,000     $ 32,600,000
Loan maturity date       Dec. 01, 2029      
Secured Debt [Member] | Subsequent Event [Member] | 250 Johnson Road [Member]              
Debt Instrument [Line Items]              
Loan maturity date Aug. 01, 2024            
Secured Debt [Member] | Subsequent Event [Member] | 250 Johnson Road [Member] | Construction Loan [Member]              
Debt Instrument [Line Items]              
Payment for borrowings $ 43,000,000            
Unconsolidated Joint Venture Multi-Family Properties [Member] | Marbella II [Member]              
Debt Instrument [Line Items]              
Percentage of additional interest acquired     50.00%        
Mortgage loan     $ 117,000,000     $ 74,700,000