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

Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity - Monthly Distributions Declared and Paid by Company's Board of Directors (Detail)

Stockholders' Equity - Monthly Distributions Declared and Paid by Company's Board of Directors (Detail) - $ / shares																			9 Months Ended
	Sep. 30, 2015	Aug. 31, 2015	Aug. 04, 2015	Jun. 30, 2015	May. 28, 2015	May. 04, 2015	Mar. 31, 2015	Feb. 27, 2015	Feb. 03, 2015	Sep. 30, 2014	Aug. 29, 2014	Aug. 05, 2014	Jun. 30, 2014	May. 30, 2014	Apr. 30, 2014	Mar. 31, 2014	Feb. 28, 2014	Jan. 31, 2014	Sep. 30, 2015	Sep. 30, 2014
Class of Stock [Line Items]
Distributions per Common Share																			$ 0.345	$ 0.270
Monthly Distribution One [Member]
Class of Stock [Line Items]
Dividend Declaration Date																			Jan. 13, 2015	Jan. 07, 2014
Record Date																			Jan. 23, 2015	Jan. 22, 2014
Dividend Payment Date																			Feb. 03, 2015	Jan. 31, 2014
Distributions per Common Share									$ 0.035									$ 0.030
Monthly Distribution Two [Member]
Class of Stock [Line Items]
Dividend Declaration Date																			Jan. 13, 2015	Jan. 07, 2014
Record Date																			Feb. 18, 2015	Feb. 19, 2014
Dividend Payment Date																			Feb. 27, 2015	Feb. 28, 2014
Distributions per Common Share								$ 0.035									$ 0.030
Monthly Distribution Three [Member]
Class of Stock [Line Items]
Dividend Declaration Date																			Jan. 13, 2015	Jan. 07, 2014
Record Date																			Mar. 20, 2015	Mar. 17, 2014
Dividend Payment Date																			Mar. 31, 2015	Mar. 31, 2014
Distributions per Common Share							$ 0.035									$ 0.030
Monthly Distribution Four [Member]
Class of Stock [Line Items]
Dividend Declaration Date																			Apr. 14, 2015	Apr. 08, 2014
Record Date																			Apr. 24, 2015	Apr. 21, 2014
Dividend Payment Date																			May 04, 2015	Apr. 30, 2014
Distributions per Common Share						$ 0.040									$ 0.030
Monthly Distribution Five [Member]
Class of Stock [Line Items]
Dividend Declaration Date																			Apr. 14, 2015	Apr. 08, 2014
Record Date																			May 19, 2015	May 20, 2014
Dividend Payment Date																			May 28, 2015	May 30, 2014
Distributions per Common Share					$ 0.040									$ 0.030
Monthly Distribution Six [Member]
Class of Stock [Line Items]
Dividend Declaration Date																			Apr. 14, 2015	Apr. 08, 2014
Record Date																			Jun. 19, 2015	Jun. 19, 2014
Dividend Payment Date																			Jun. 30, 2015	Jun. 30, 2014
Distributions per Common Share				$ 0.040									$ 0.030
Monthly Distribution Seven [Member]
Class of Stock [Line Items]
Dividend Declaration Date																			Jul. 14, 2015	Jul. 15, 2014
Record Date																			Jul. 24, 2015	Jul. 25, 2014
Dividend Payment Date																			Aug. 04, 2015	Aug. 05, 2014
Distributions per Common Share			$ 0.040									$ 0.030
Monthly Distribution Eight [Member]
Class of Stock [Line Items]
Dividend Declaration Date																			Jul. 14, 2015	Jul. 15, 2014
Record Date																			Aug. 20, 2015	Aug. 20, 2014
Dividend Payment Date																			Aug. 31, 2015	Aug. 29, 2014
Distributions per Common Share		$ 0.040									$ 0.030
Monthly Distribution Nine [Member]
Class of Stock [Line Items]
Dividend Declaration Date																			Jul. 14, 2015	Jul. 15, 2014
Record Date																			Sep. 21, 2015	Sep. 19, 2014
Dividend Payment Date																			Sep. 30, 2015	Sep. 30, 2014
Distributions per Common Share	$ 0.040									$ 0.030