Annual report pursuant to Section 13 and 15(d)

Organization And Description Of Business (Narrative) (Details)

v3.22.0.1
Organization And Description Of Business (Narrative) (Details)
ft² in Thousands, shares in Millions
12 Months Ended
Dec. 31, 2021
ft²
item
property
state
shares
Organization And Description Of Business [Line Items]  
The Company's ownership percentage of the limited partnership 79.10%
Rentable area (in square feet) | ft² 27,712
Number of states with rentable commercial space | state 6
Number of parks | item 97
Number of buildings | item 666
Managed Properties [Member]  
Organization And Description Of Business [Line Items]  
Rentable area (in square feet) | ft² 300
Highgate at the Mile [Member]  
Organization And Description Of Business [Line Items]  
Number of units developed | property 395
Brentford at The Mile [Member]  
Organization And Description Of Business [Line Items]  
Number of units developed | property 411
JV Partner [Member] | Highgate at the Mile [Member]  
Organization And Description Of Business [Line Items]  
Economic interest in joint venture, percentage 5.00%
JV Partner [Member] | Brentford at The Mile [Member]  
Organization And Description Of Business [Line Items]  
Economic interest in joint venture, percentage 1.80%
PS [Member]  
Organization And Description Of Business [Line Items]  
Shares owned by Public Storage | shares 7.2
Affiliate's percent ownership of the Company's common equity 41.40%
Aggregate shares owned if partnership units are redeemed | shares 14.5
Investment in Joint Venture [Member] | Highgate at the Mile [Member]  
Organization And Description Of Business [Line Items]  
Economic interest in joint venture, percentage 95.00%
Investment in Joint Venture [Member] | Brentford at The Mile [Member]  
Organization And Description Of Business [Line Items]  
Economic interest in joint venture, percentage 98.20%