Quarterly report pursuant to Section 13 or 15(d)

Summary of Significant Accounting Policies - Additional Information (Details)

v3.10.0.1
Summary of Significant Accounting Policies - Additional Information (Details) - USD ($)
 6 Months Ended
Jun. 30, 2018
Dec. 31, 2017
Summary Of Significant Accounting Policies [Line Items]    
Percentage of real estate investment trust taxable income distributed for exemption of federal income tax 90.00%  
Unrecognized tax benefits $ 0  
Accounts Payable and Accrued Expenses    
Summary Of Significant Accounting Policies [Line Items]    
Contingent payment $ 900,000 $ 900,000
Minimum    
Summary Of Significant Accounting Policies [Line Items]    
Estimated useful lives of buildings and improvements 5 years  
Maximum    
Summary Of Significant Accounting Policies [Line Items]    
Estimated useful lives of buildings and improvements 39 years  
ASU 2016-18    
Summary Of Significant Accounting Policies [Line Items]    
Restricted cash $ 70,478