Quarterly report pursuant to Section 13 or 15(d)

Summary of Significant Accounting Policies - Additional Information (Details)

v3.19.1
Summary of Significant Accounting Policies - Additional Information (Details)
Mar. 31, 2019
a
lease
Jul. 31, 2018
a
Mar. 31, 2018
a
Oct. 17, 2017
a
Property, Plant and Equipment [Line Items]        
Area of real estate property (in acres) 73,900   63,351  
Number of operating ground lease arrangements | lease 2      
Ventura County California        
Property, Plant and Equipment [Line Items]        
Area of real estate property (in acres)   169   169