Gladstone Land Corporation Quarterly report pursuant to Section 13 or 15(d)

Related-Party Transactions - Additional Information (Detail) (USD $)	3 Months Ended			6 Months Ended	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Mar. 31, 2013	Sep. 30, 2013	Sep. 30, 2014
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%
Adviser will receive 100% of the amount of the pre-incentive fee FFO annually that exceeds the hurdle but less than					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%
Incentive fee paid to adviser	$ 0	$ 0	$ 41,037	$ 0	$ 0