Quarterly report pursuant to Section 13 or 15(d)

Subsequent Events - Additional Information (Details)

v3.19.3
Subsequent Events - Additional Information (Details)
$ in Millions
Oct. 25, 2019
USD ($)
Oct. 23, 2019
ft²
Unit
Oct. 04, 2019
USD ($)
Sep. 30, 2019
ft²
West Henrietta Property Acquisition        
Subsequent Event [Line Items]        
Leasable square foot property | ft² [1]       46,850
Subsequent Event | Rights Offerings | Common Stock | Maximum        
Subsequent Event [Line Items]        
Newly issued shares | $ $ 11.6      
Subsequent Event | West Henrietta Property Acquisition | New York        
Subsequent Event [Line Items]        
Business acquisition price | $     $ 6.2  
Subsequent Event | Erie Station Storage, LLC | West Henrietta Property Acquisition | New York        
Subsequent Event [Line Items]        
Business acquisition agreement date     Oct. 04, 2019  
Subsequent Event | Edmond Property Third-Party Management | Oklahoma        
Subsequent Event [Line Items]        
Leasable square foot property | ft²   134,318    
Number of climate-controlled and non-climate-controlled units | Unit   618    
[1] Does not include a potential expansion of the property of up to approximately 7,300 net leasable square feet that we may undertake if the acquisition of the property is completed.