Annual report pursuant to Section 13 and 15(d)

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

v3.20.4
Mortgages, Loans Payable And Other Obligations (Summary Of Mortgages, Loans Payable And Other Obligations) (Details)
1 Months Ended 12 Months Ended
Dec. 31, 2020
USD ($)
Nov. 30, 2020
Jan. 31, 2020
USD ($)
Dec. 31, 2020
USD ($)
item
Dec. 31, 2019
USD ($)
Dec. 31, 2018
USD ($)
Debt Instrument [Line Items]            
Principal balance outstanding $ 2,801,797,000     $ 2,801,797,000 $ 2,808,518,000  
Payment for borrowings       516,000,000 617,000,000 $ 494,000,000
Secured Debt [Member]            
Debt Instrument [Line Items]            
Principal balance outstanding 2,218,862,000     2,218,862,000 1,925,038,000  
Unamortized deferred financing costs (14,718,000)     (14,718,000) (17,004,000)  
Total mortgages, loans payable and other obligations, net $ 2,204,144,000     $ 2,204,144,000 1,908,034,000  
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%     4.56%    
Principal balance outstanding $ 3,866,000     $ 3,866,000 3,934,000  
Loan maturity date       Dec. 01, 2021    
Secured Debt [Member] | Port Imperial 4/5 Hotel [Member]            
Debt Instrument [Line Items]            
Property Name       Port Imperial 4/5 Hotel (b)    
Lender       Fifth Third Bank    
Effective rate 3.40%     3.40%    
Principal balance outstanding $ 94,000,000     $ 94,000,000 74,000,000  
Loan maturity date       Apr. 09, 2022    
Guaranteed amount $ 19,500,000     $ 19,500,000    
Secured Debt [Member] | Port Imperial South 9 [Member]            
Debt Instrument [Line Items]            
Property Name       Port Imperial South 9 (c)    
Lender       Bank of New York Mellon    
Effective rate 2.13%     2.13%    
Principal balance outstanding $ 46,357,000     $ 46,357,000 11,615,000  
Loan maturity date       Dec. 19, 2022    
Secured Debt [Member] | Port Imperial South 9 [Member] | Construction Loan [Member]            
Debt Instrument [Line Items]            
Maximum borrowing capacity $ 92,000,000     $ 92,000,000    
Number of extension options | item       1    
Loan extension period       1 year    
Extension fee       0.15%    
Percent of principal loan outstanding       10.00%    
Secured Debt [Member] | Portside 7 [Member]            
Debt Instrument [Line Items]            
Property Name       Portside 7    
Lender       CBRE Capital Markets/FreddieMac    
Effective rate 3.57%     3.57%    
Principal balance outstanding $ 58,998,000     $ 58,998,000 58,998,000  
Loan maturity date       Aug. 01, 2023    
Secured Debt [Member] | Short Hills Residential [Member]            
Debt Instrument [Line Items]            
Property Name       Short Hills Residential (d)    
Lender       People's United Bank    
Effective rate 2.15%     2.15%    
Principal balance outstanding $ 42,459,000     $ 42,459,000 9,431,000  
Loan maturity date       Mar. 26, 2023    
Secured Debt [Member] | Short Hills Residential [Member] | Construction Loan [Member]            
Debt Instrument [Line Items]            
Number of extension options | item       1    
Loan extension period       18 months    
Percent of principal loan outstanding       15.00%    
Secured Debt [Member] | 250 Johnson Road [Member]            
Debt Instrument [Line Items]            
Property Name       250 Johnson    
Lender       Nationwide Life Insurance Company    
Effective rate 3.74%     3.74%    
Principal balance outstanding $ 43,000,000     $ 43,000,000 43,000,000  
Loan maturity date       Aug. 01, 2024    
Secured Debt [Member] | Liberty Towers [Member]            
Debt Instrument [Line Items]            
Property Name       Liberty Towers (e)    
Lender       American General Life Insurance Company    
Effective rate 3.37%     3.37%    
Principal balance outstanding $ 265,000,000     $ 265,000,000 232,000,000  
Loan maturity date       Oct. 01, 2024    
Secured Debt [Member] | Liberty Towers [Member] | Construction Loan [Member]            
Debt Instrument [Line Items]            
Payment for borrowings     $ 265,000,000      
Additional borrowing capacity     $ 33,000,000      
Secured Debt [Member] | The Charlotte [Member]            
Debt Instrument [Line Items]            
Property Name       The Charlotte (f)    
Lender       QuadReal Finance    
Effective rate 2.70%     2.70%    
Principal balance outstanding $ 161,544,000     $ 161,544,000 5,144,000  
Loan maturity date       Dec. 01, 2024    
Secured Debt [Member] | The Charlotte [Member] | Construction Loan [Member]            
Debt Instrument [Line Items]            
Spread over LIBOR       2.00%    
Maximum borrowing capacity $ 300,000,000     $ 300,000,000    
Number of extension options | item       1    
Loan extension period       1 year    
Extension fee       25.00%    
Secured Debt [Member] | Portside 5/6 [Member]            
Debt Instrument [Line Items]            
Property Name       Portside 5/6 (g)    
Lender       New York Life Insurance Company    
Effective rate 4.56%     4.56%    
Principal balance outstanding $ 97,000,000     $ 97,000,000 97,000,000  
Loan maturity date       Mar. 10, 2026    
Percent of principal loan outstanding       10.00%    
Secured Debt [Member] | Marbella [Member]            
Debt Instrument [Line Items]            
Property Name       Marbella (BLVD 425)    
Lender       New York Life Insurance Company    
Effective rate 4.17%     4.17%    
Principal balance outstanding $ 131,000,000     $ 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 (BLVD 401)    
Lender       New York Life Insurance Company    
Effective rate 4.29%     4.29%    
Principal balance outstanding $ 117,000,000     $ 117,000,000 117,000,000  
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%     3.20%    
Principal balance outstanding $ 250,000,000     $ 250,000,000 250,000,000  
Loan maturity date       Oct. 11, 2026    
Secured Debt [Member] | Worcester [Member]            
Debt Instrument [Line Items]            
Property Name       Worcester    
Lender       MUFG Union Bank    
Effective rate 1.84%     1.84%    
Principal balance outstanding $ 63,000,000     $ 63,000,000 63,000,000  
Loan maturity date       Dec. 10, 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%     4.15%    
Principal balance outstanding $ 124,500,000     $ 124,500,000 124,500,000  
Loan maturity date       Apr. 01, 2027    
Secured Debt [Member] | Short Hills Portfolio [Member] | Construction Loan [Member]            
Debt Instrument [Line Items]            
Maximum borrowing capacity $ 64,000,000     $ 64,000,000    
Extension fee       0.30%    
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%     4.48%    
Principal balance outstanding $ 41,000,000     $ 41,000,000 41,000,000  
Loan maturity date       Aug. 05, 2027    
Secured Debt [Member] | Monaco (BLVD 495 N/S) [Member]            
Debt Instrument [Line Items]            
Property Name       Monaco (BLVD 495 N/S) (l)    
Lender       The Northwestern Mutual Life Insurance Co.    
Effective rate 2.91%     2.91%    
Principal balance outstanding $ 165,000,000     $ 165,000,000 166,752,000  
Loan maturity date Nov. 10, 2027 Feb. 01, 2021   Nov. 10, 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%     4.52%    
Principal balance outstanding $ 100,000,000     $ 100,000,000 100,000,000  
Loan maturity date       Jan. 10, 2029    
Secured Debt [Member] | Soho Lofts [Member]            
Debt Instrument [Line Items]            
Property Name       Soho Lofts (i)    
Lender       New York Community Bank    
Effective rate 3.77%     3.77%    
Principal balance outstanding $ 160,000,000     $ 160,000,000 160,000,000  
Loan maturity date       Jul. 01, 2029    
First period of term period       5 years    
Secured Debt [Member] | Riverwatch Commons [Member]            
Debt Instrument [Line Items]            
Property Name       Riverwatch Commons    
Lender       New York Community Bank    
Principal balance outstanding         30,000,000  
Effective percentage after five years 2.75%     2.75%    
Secured Debt [Member] | 111 River St. [Member]            
Debt Instrument [Line Items]            
Property Name       111 River St.    
Lender       Athene Annuity and Life Company    
Effective rate 3.90%     3.90%    
Principal balance outstanding $ 150,000,000     $ 150,000,000 150,000,000  
Loan maturity date       Sep. 01, 2029    
Secured Debt [Member] | Port Imperial South 4/5 Garage [Member]            
Debt Instrument [Line Items]            
Property Name       Port Imperial South 4/5 Garage (j)    
Lender       American General Life & A/G PC    
Effective rate 4.85%     4.85%    
Principal balance outstanding $ 33,138,000     $ 33,138,000 32,600,000  
Loan maturity date       Dec. 01, 2029    
Deferred interest       $ 800,000    
Deferred interest and principal payment period       6 months    
Deferred interest and payment end date       Dec. 01, 2020    
Secured Debt [Member] | Emery At Overlook Ridge [Member]            
Debt Instrument [Line Items]            
Property Name       Emery at Overlook Ridge (k)    
Lender       New York Community Bank    
Effective rate 3.21%     3.21%    
Principal balance outstanding $ 72,000,000     $ 72,000,000 $ 24,064,000  
Loan maturity date Jan. 01, 2031     Jan. 01, 2031    
Mortgage loan $ 72,000,000     $ 72,000,000    
Gain (loss) on sale of property $ 10,400,000