Quarterly report pursuant to Section 13 or 15(d)

Commitments And Contingencies (Construction Projects) (Narrative) (Details)

v3.20.2
Commitments And Contingencies (Construction Projects) (Narrative) (Details)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2020
USD ($)
item
Jun. 30, 2019
USD ($)
Jun. 30, 2020
USD ($)
item
Jun. 30, 2019
USD ($)
Dec. 31, 2019
USD ($)
Commitments And Contingencies [Line Items]          
Properties aggregate net book value     $ 1,100    
Costs of the project incurred $ 3,113 $ 4,091 6,966 $ 10,203  
Amount outstanding $ 329,000   329,000   $ 329,000
Port Imperial South 9 [Member]          
Commitments And Contingencies [Line Items]          
Costs of the project incurred     $ 79,800    
Delivery date to tenant     first quarter 2021    
Number of units | item 313   313    
Amount outstanding $ 28,900   $ 28,900    
Total project costs     142,900    
Amount to fund $ 50,900   50,900    
The Upton At Short Hills [Member]          
Commitments And Contingencies [Line Items]          
Costs of the project incurred     $ 65,600    
Delivery date to tenant     first quarter 2021    
Number of units | item 198   198    
Amount outstanding $ 26,700   $ 26,700    
Total project costs     99,400    
Amount to fund $ 38,900   38,900    
25 Christopher Columbus [Member]          
Commitments And Contingencies [Line Items]          
Costs of the project incurred     $ 227,800    
Delivery date to tenant     first quarter 2022    
Number of units | item 750   750    
Amount outstanding $ 72,800   $ 72,800    
Amount of project costs funded 155,000   155,000    
Total project costs     469,500    
Amount to fund 169,500   169,500    
Construction Loan [Member] | Port Imperial South 9 [Member]          
Commitments And Contingencies [Line Items]          
Amount outstanding 92,000   92,000    
Construction Loan [Member] | The Upton At Short Hills [Member]          
Commitments And Contingencies [Line Items]          
Amount outstanding 64,000   64,000    
Construction Loan [Member] | 25 Christopher Columbus [Member]          
Commitments And Contingencies [Line Items]          
Amount outstanding $ 300,000   $ 300,000