XML 62 R38.htm IDEA: XBRL DOCUMENT v3.20.1
Acquisitions - Additional Information (Details) - Self Storage Properties
12 Months Ended
Dec. 31, 2019
USD ($)
Dec. 31, 2018
USD ($)
Nov. 30, 2019
Property
Business Acquisition [Line Items]      
Number of property acquired | Property     1
Amortization expenses | $ $ 14,643 $ 0  
Estimated life 12 months