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Related Party Transactions - Additional Information (Detail) - USD ($)
9 Months Ended
Sep. 30, 2018
Jan. 09, 2018
Related Party Transactions [Abstract]    
Percentage of management fee to NAV payable to adviser per annum, payable monthly 1.00%  
Percentage of performance participation interest to annual total return held by adviser 12.50%  
Annual hurdle amount, percentage 5.00%  
Due to affiliates $ 130,585 $ 0
Proceeds from contributions from affiliates 200,000  
Accounts payable, related parties 25,000  
Accounts receivable, related parties $ 94,415