Annual report pursuant to Section 13 and 15(d)

Multifamily Developmental Activity (Narrative) (Details)

v3.20.4
Multifamily Developmental Activity (Narrative) (Details)
$ in Thousands
1 Months Ended 12 Months Ended
Aug. 31, 2020
USD ($)
Dec. 31, 2020
USD ($)
property
Dec. 31, 2020
USD ($)
item
Dec. 31, 2019
USD ($)
Real Estate Facilities [Line Items]        
Land cost basis   $ 3,122,069 $ 3,122,069 $ 3,047,727
Brentford at The Mile [Member]        
Real Estate Facilities [Line Items]        
Number of Units in Multi-Family Asset   411 411  
Value of property contributed $ 18,500      
Land cost basis $ 5,500 $ 5,500 $ 5,500  
Development cost incurred, inclusive of land cost   9,600 9,600  
Demolition costs   $ 300 $ 300  
Brentford at The Mile [Member] | Investment in Joint Venture [Member]        
Real Estate Facilities [Line Items]        
Economic interest in joint venture, percentage   98.20% 98.20%  
Brentford at The Mile [Member] | JV Partner [Member]        
Real Estate Facilities [Line Items]        
Economic interest in joint venture, percentage   1.80% 1.80%  
Minimum [Member] | Brentford at The Mile [Member]        
Real Estate Facilities [Line Items]        
Period to complete construction 24 months      
Maximum [Member] | Brentford at The Mile [Member]        
Real Estate Facilities [Line Items]        
Period to complete construction 36 months