Quarterly report pursuant to Section 13 or 15(d)

Recent Transactions (Consolidation) (Narrative) (Details)

v3.20.2
Recent Transactions (Consolidation) (Narrative) (Details)
6 Months Ended
Mar. 12, 2020
USD ($)
ft²
Jun. 30, 2020
USD ($)
Jun. 30, 2019
USD ($)
Real Estate Properties [Line Items]      
Purchase price of property   $ 104,399,000 $ 50,455,000
Gain on change of control of interests     $ 13,790,000
Port Imperial North Retail, L.L.C. [Member]      
Real Estate Properties [Line Items]      
Total consolidated net assets   15,033,000  
Port Imperial North Retail, L.L.C. [Member] | Unconsolidated Joint Venture Multi-Family Properties [Member]      
Real Estate Properties [Line Items]      
Percentage of additional interest acquired 80.00%    
Area of property (in square feet) | ft² 30,745    
Purchase price of property $ 13,300,000    
Gain on change of control of interests   0  
Total consolidated net assets   $ 15,000,000.0