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

Real Estate and Lease Intangibles - Summary of Future Lease Expirations by Year for Properties (Parenthetical) (Detail) - USD ($)		12 Months Ended
	Feb. 10, 2015	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Property Subject to or Available for Operating Lease [Line Items]
Rental revenue	$ 73,749	$ 11,888,091	$ 7,170,318	$ 4,027,687
2016 [Member]
Property Subject to or Available for Operating Lease [Line Items]
Rental revenue		816,811
2016 [Member] \| Surface Area Lease Property [Member]
Property Subject to or Available for Operating Lease [Line Items]
Rental revenue		32,064
2016 [Member] \| Residential Lease Property [Member]
Property Subject to or Available for Operating Lease [Line Items]
Rental revenue		$ 0