Quarterly report pursuant to Section 13 or 15(d)

Related-Party Transactions - Additional Information (Details)

v3.8.0.1
Related-Party Transactions - Additional Information (Details)
3 Months Ended 9 Months Ended
Oct. 17, 2017
farm
Apr. 01, 2017
Sep. 30, 2017
Sep. 30, 2017
farm
officer
Sep. 30, 2016
farm
Related Party Transaction [Line Items]          
Number of executive officers that serve as directors | officer       2  
Number of farms       72 56
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%      
Gladstone Securities | Minimum          
Related Party Transaction [Line Items]          
Percentage of financing that will be payable   0.50% 0.10% 0.10%  
Gladstone Securities | Maximum          
Related Party Transaction [Line Items]          
Percentage of financing that will be payable   1.00%      
Subsequent event | Subsidiaries | Land Advisers          
Related Party Transaction [Line Items]          
Number of farms 1