Annual report pursuant to Section 13 and 15(d)

Multifamily Developmental Activity (Narrative) (Details)

v3.22.0.1
Multifamily Developmental Activity (Narrative) (Details) - Brentford at The Mile [Member]
$ in Millions
1 Months Ended 12 Months Ended
Aug. 31, 2020
USD ($)
Dec. 31, 2021
USD ($)
property
Real Estate Facilities [Line Items]    
Number of Units in Multi-Family Asset | property   411
Value of property contributed $ 18.5  
Development costs incurred   $ 54.8
Development cost incurred, inclusive of land cost   $ 39.3
Investment in Joint Venture [Member]    
Real Estate Facilities [Line Items]    
Economic interest in joint venture, percentage   98.20%
JV Partner [Member]    
Real Estate Facilities [Line Items]    
Economic interest in joint venture, percentage   1.80%
Minimum [Member]    
Real Estate Facilities [Line Items]    
Period to complete construction 24 months  
Maximum [Member]    
Real Estate Facilities [Line Items]    
Period to complete construction 36 months