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Subsequent Events - Additional Information (Details) - USD ($)
1 Months Ended 6 Months Ended
Aug. 14, 2020
Aug. 14, 2020
Jun. 30, 2020
Dec. 31, 2019
Subsequent Event [Line Items]        
Common stock, shares issued (in shares)     18,916,995 14,997,217
Proceeds from sale of stock     $ 49,040,510  
Collateralized Mortgage Backed Securities [Member] | Subsequent Event [Member]        
Subsequent Event [Line Items]        
Purchase of securities   $ 4,000,000    
Sale of marketable securities   $ 4,800,000    
Offering        
Subsequent Event [Line Items]        
Proceeds from sale of stock $ 196,000,000      
Offering | Subsequent Event [Member]        
Subsequent Event [Line Items]        
Common stock, shares issued (in shares) 19,498,515 19,498,515    
Offering | Common Class S [Member] | Subsequent Event [Member]        
Subsequent Event [Line Items]        
Common stock, shares issued (in shares) 11,330,483 11,330,483    
Offering | Common Class I [Member] | Subsequent Event [Member]        
Subsequent Event [Line Items]        
Common stock, shares issued (in shares) 8,168,032 8,168,032