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

Quarterly report pursuant to Section 13 or 15(d)

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

Equity - Monthly Distributions Declared and Paid by Company's Board of Directors (Detail) - $ / shares																			9 Months Ended
	Sep. 30, 2016	Aug. 31, 2016	Aug. 02, 2016	Jun. 30, 2016	May 31, 2016	May 02, 2016	Mar. 31, 2016	Feb. 29, 2016	Feb. 02, 2016	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, 2016	Sep. 30, 2015
Class of Stock [Line Items]
Distributions per Common Share																			$ 0.3675	$ 0.345
Monthly Distribution One [Member]
Class of Stock [Line Items]
Dividend Declaration Date																			Jan. 12, 2016	Jan. 13, 2015
Record Date																			Jan. 22, 2016	Jan. 23, 2015
Dividend Payment Date																			Feb. 02, 2016	Feb. 03, 2015
Distributions per Common Share									$ 0.040									$ 0.035
Monthly Distribution Two [Member]
Class of Stock [Line Items]
Dividend Declaration Date																			Jan. 12, 2016	Jan. 13, 2015
Record Date																			Feb. 18, 2016	Feb. 18, 2015
Dividend Payment Date																			Feb. 29, 2016	Feb. 27, 2015
Distributions per Common Share								$ 0.040									$ 0.035
Monthly Distribution Three [Member]
Class of Stock [Line Items]
Dividend Declaration Date																			Jan. 12, 2016	Jan. 13, 2015
Record Date																			Mar. 21, 2016	Mar. 20, 2015
Dividend Payment Date																			Mar. 31, 2016	Mar. 31, 2015
Distributions per Common Share							$ 0.040									$ 0.035
Monthly Distribution Four [Member]
Class of Stock [Line Items]
Dividend Declaration Date																			Apr. 12, 2016	Apr. 14, 2015
Record Date																			Apr. 22, 2016	Apr. 24, 2015
Dividend Payment Date																			May 02, 2016	May 04, 2015
Distributions per Common Share						$ 0.04125									$ 0.040
Monthly Distributions Five [Member]
Class of Stock [Line Items]
Dividend Declaration Date																			Apr. 12, 2016	Apr. 14, 2015
Record Date																			May 19, 2016	May 19, 2015
Dividend Payment Date																			May 31, 2016	May 28, 2015
Distributions per Common Share					$ 0.04125									$ 0.040
Monthly Distributions Six [Member]
Class of Stock [Line Items]
Dividend Declaration Date																			Apr. 12, 2016	Apr. 14, 2015
Record Date																			Jun. 17, 2016	Jun. 19, 2015
Dividend Payment Date																			Jun. 30, 2016	Jun. 30, 2015
Distributions per Common Share				$ 0.04125									$ 0.040
Monthly Distribution Seven [Member]
Class of Stock [Line Items]
Dividend Declaration Date																			Jul. 12, 2016	Jul. 14, 2015
Record Date																			Jul. 22, 2016	Jul. 24, 2015
Dividend Payment Date																			Aug. 02, 2016	Aug. 04, 2015
Distributions per Common Share			$ 0.04125									$ 0.040
Monthly Distribution Eight [Member]
Class of Stock [Line Items]
Dividend Declaration Date																			Jul. 12, 2016	Jul. 14, 2015
Record Date																			Aug. 22, 2016	Aug. 20, 2015
Dividend Payment Date																			Aug. 31, 2016	Aug. 31, 2015
Distributions per Common Share		$ 0.04125									$ 0.040
Monthly Distribution Nine [Member]
Class of Stock [Line Items]
Dividend Declaration Date																			Jul. 12, 2016	Jul. 14, 2015
Record Date																			Sep. 21, 2016	Sep. 21, 2015
Dividend Payment Date																			Sep. 30, 2016	Sep. 30, 2015
Distributions per Common Share	$ 0.04125									$ 0.040