Quarterly report pursuant to Section 13 or 15(d)

Related-Party Transactions - Additional Information (Details)

v3.21.2
Related-Party Transactions - Additional Information (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jul. 13, 2021
Feb. 20, 2020
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Related Party Transaction [Line Items]            
Pre-Incentive Fee FFO (as percent)         100.00%  
Pre-Incentive Fee, exceeded (as percent)         2.1875%  
Pre-Incentive Fee, exceeded, annual (as percent)         8.75%  
Pre-Incentive Fee (as percent)         20.00%  
Cumulative realized capital gains (as percent)         15.00%  
Notice period for termination of agreement without cause         120 days  
Multiplier     300.00%   300.00%  
Period prior to termination         24 months  
Financing fees     $ 35 $ 28 $ 52 $ 28
Selling commissions and dealer-manager fees     808 286 $ 1,952 2,770
Termination Agreement, Percentage Of Independent Directors         66.67%  
Prior Advisory Agreement            
Related Party Transaction [Line Items]            
Management fee (as percent)         0.50%  
Base management fee, quarterly (as percent)         0.125%  
Hurdle rate, quarterly (as percent)         1.75%  
Hurdle rate, annual (as percent)         7.00%  
Prior Advisory Agreement | Subsequent Event            
Related Party Transaction [Line Items]            
Management fee (as percent) 0.60%          
Base management fee, quarterly (as percent) 0.15%          
Gladstone Securities            
Related Party Transaction [Line Items]            
Financing fee (as percent)         0.14%  
Financing fees     35 28 $ 52 28
Preferred Stock | Series C Preferred Stock            
Related Party Transaction [Line Items]            
Selling commission fee (as percent)   6.00%        
Dealer-manager fee (as percent)   3.00%        
Selling commissions and dealer-manager fees     $ 808 286 $ 2,000 286
Gladstone Securities | Preferred Stock | Series B Preferred Stock            
Related Party Transaction [Line Items]            
Selling commissions and dealer-manager fees       $ 2,500   $ 2,500
Gladstone Securities | Minimum | Gladstone Securities            
Related Party Transaction [Line Items]            
Financing fee (as percent)         0.50%  
Gladstone Securities | Maximum | Gladstone Securities            
Related Party Transaction [Line Items]            
Financing fee (as percent)         1.00%