Quarterly report pursuant to Section 13 or 15(d)

Related-Party Transactions - Additional Information (Details)

v3.7.0.1
Related-Party Transactions - Additional Information (Details) - officer
3 Months Ended 6 Months Ended
Apr. 01, 2017
Jun. 30, 2017
Jun. 30, 2017
Related Party Transaction [Line Items]      
Number of executive officers that serve as directors     2
Annual base management fee 2.00%    
Quarterly base management fee 0.50%    
Incentive fee 1.75%    
Annualized incentive fee 7.00%    
Amount payable to Adviser for quarter exceeding hurdle rate 100.00%    
Pre-incentive fee hurdle rate 2.1875%    
Annualized Pre-Incentive Fee FFO hurdle rate 8.75%    
Amount payable to adviser 20.00%    
Capital gain fee 15.00%    
Written notice period for termination 120 days    
Percentage of independent directors vote required for termination 66.67%    
Termination fee multiple 300.00%    
Minimum | Gladstone Securities      
Related Party Transaction [Line Items]      
Percentage of financing that will be payable 0.50% 0.01%  
Maximum | Gladstone Securities      
Related Party Transaction [Line Items]      
Percentage of financing that will be payable 1.00%