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

Real Estate and Intangible Assets - Summarizes Lease Expirations by Year for Properties with Leases (Detail)

Real Estate and Intangible Assets - Summarizes Lease Expirations by Year for Properties with Leases (Detail) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2014 acre Lease	Sep. 30, 2013	Sep. 30, 2014 acre Lease	Sep. 30, 2013
Property Subject to or Available for Operating Lease [Line Items]
Number of Expiring Leases	21		21
Expiring Leased Acreage	7,641		7,641
% of Total Acreage	100.00%		100.00%
Rental Revenue for the Year Ended December 31, 2013	$ 1,771,106	$ 996,096	$ 4,828,033	$ 2,860,435
% of Total Rental Revenue	100.00%		100.00%
2014 [Member]
Property Subject to or Available for Operating Lease [Line Items]
Number of Expiring Leases	1		1
Expiring Leased Acreage	0		0
% of Total Acreage	0.00%		0.00%
Rental Revenue for the Year Ended December 31, 2013			22,980
% of Total Rental Revenue	0.50%		0.50%
2015 [Member]
Property Subject to or Available for Operating Lease [Line Items]
Number of Expiring Leases	1		1
Expiring Leased Acreage	72		72
% of Total Acreage	0.90%		0.90%
Rental Revenue for the Year Ended December 31, 2013			106,875
% of Total Rental Revenue	2.20%		2.20%
2016 [Member]
Property Subject to or Available for Operating Lease [Line Items]
Number of Expiring Leases	2		2
Expiring Leased Acreage	204		204
% of Total Acreage	2.70%		2.70%
Rental Revenue for the Year Ended December 31, 2013			132,522
% of Total Rental Revenue	2.70%		2.70%
2017 [Member]
Property Subject to or Available for Operating Lease [Line Items]
Number of Expiring Leases	3		3
Expiring Leased Acreage	286		286
% of Total Acreage	3.80%		3.80%
Rental Revenue for the Year Ended December 31, 2013			297,611
% of Total Rental Revenue	6.20%		6.20%
2018 [Member]
Property Subject to or Available for Operating Lease [Line Items]
Number of Expiring Leases	2		2
Expiring Leased Acreage	370		370
% of Total Acreage	4.80%		4.80%
Rental Revenue for the Year Ended December 31, 2013			192,669
% of Total Rental Revenue	4.00%		4.00%
2019 [Member]
Property Subject to or Available for Operating Lease [Line Items]
Number of Expiring Leases	0		0
Expiring Leased Acreage	0		0
% of Total Acreage	0.00%		0.00%
Rental Revenue for the Year Ended December 31, 2013
% of Total Rental Revenue	0.00%		0.00%
Thereafter [Member]
Property Subject to or Available for Operating Lease [Line Items]
Number of Expiring Leases	12		12
Expiring Leased Acreage	6,709		6,709
% of Total Acreage	87.80%		87.80%
Rental Revenue for the Year Ended December 31, 2013			$ 4,075,376
% of Total Rental Revenue	84.40%		84.40%