Annual report pursuant to Section 13 and 15(d)

Recent Transactions (Schedule Of Properties Which Commenced Initial Operations) (Details)

v3.22.0.1
Recent Transactions (Schedule Of Properties Which Commenced Initial Operations) (Details)
 3 Months Ended 12 Months Ended
Mar. 31, 2021
USD ($)
Dec. 31, 2021
USD ($)
item
Dec. 31, 2020
USD ($)
item
Real Estate Properties [Line Items]      
Total number of Apartment Units | item   506 326
Total Development Costs Incurred   $ 265,902,000 $ 103,993,000
Emery At Overlook Ridge [Member]      
Real Estate Properties [Line Items]      
Total number of Apartment Units | item     326
Total Development Costs Incurred     $ 103,993,000
Upton [Member]      
Real Estate Properties [Line Items]      
Total number of Apartment Units | item   193  
Total Development Costs Incurred   $ 101,269,000  
Upton [Member] | Land [Member]      
Real Estate Properties [Line Items]      
Total Development Costs Incurred   $ 2,900,000  
Riverhouse [Member]      
Real Estate Properties [Line Items]      
Total number of Apartment Units | item   313  
Total Development Costs Incurred   $ 164,633,000  
Riverhouse [Member] | Land [Member]      
Real Estate Properties [Line Items]      
Total Development Costs Incurred   $ 2,700,000  
Parsippany, New Jersey [Member] | Land [Member]      
Real Estate Properties [Line Items]      
Total Development Costs Incurred $ 5,100,000