Gladstone Land Corporation Annual report pursuant to Section 13 and 15(d)

Related-Party Transactions - Additional Information (Detail) - USD ($)	3 Months Ended		6 Months Ended		12 Months Ended
	Mar. 31, 2015	Mar. 31, 2013	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Related Party Transactions [Abstract]
Maximum annual management fee					2.00%
Reimbursement for overhead expenses					2.00%
Amount of payroll and benefits reimbursed					2.00%
Overhead expense reimbursements limitation period					1 year
Annual base management fee, in percentage of stockholders' equity, in excess of recorded value of preferred stock							1.00%
Expected annual base management fee						2.00%
Pre-incentive quarterly fee FFO in percentage of common stockholders equity that will reward the advisor					1.75%
Pre-incentive annual fee FFO in percentage of common stockholders equity that will reward the advisor					7.00%
Amount to be paid to Adviser in percentage of pre-incentive fee condition one					100.00%
Pre-incentive fee in percentage of common stockholders equity that awards adviser hundred percent of amount of pre-incentive fee, maximum percentage					2.1875%
Maximum annual percentage of stockholders' equity to pay full pre-incentive fee to adviser					8.75%
Amount to be paid to Adviser in percentage of pre-incentive fee condition two					20.00%
Pre-incentive fee in percentage of common stockholders' equity that awards the adviser 20% of the amount of the pre-incentive fee, minimum percentage					2.1875%
Net Incentive fee paid to Adviser	$ 41,037	$ 41,037			$ 0	$ 0
Increase in percentage of fee paid to administrator			135.00%	137.00%