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

Quarterly report pursuant to Section 13 or 15(d)

Real Estate and Intangible Assets - Additional Information (Detail)

Real Estate and Intangible Assets - Additional Information (Detail)							3 Months Ended		9 Months Ended		12 Months Ended
	Aug. 25, 2016 USD ($)	Jul. 15, 2016 USD ($)	Jul. 05, 2016 USD ($) a	Apr. 05, 2016 USD ($)	Feb. 08, 2016 USD ($)	Feb. 01, 2016 USD ($)	Sep. 30, 2016 USD ($) a	Sep. 30, 2015 USD ($) a	Sep. 30, 2016 USD ($) a Farm transaction	Sep. 30, 2015 USD ($) a Farm transaction	Jun. 30, 2017 USD ($)	Dec. 31, 2015 USD ($)
Real Estate Properties [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life									14 years	6 years 2 months 12 days
No. of Farms \| Farm									56	41
Tenant improvements, net of depreciation							$ 1,882,114		$ 1,882,114			$ 1,302,009
Tenant improvements, depreciation and rental revenue							30,753	$ 14,780	98,225	$ 27,502
Amortization expense related to intangible assets							207,234	193,621	582,095	645,448
Amortization of acquired above market lease values							1,627	4,496	4,882	15,286
Total accretion related to below-market lease values							8,951	52,591	$ 23,613	160,324
Number of farms acquired \| Farm									6
Additional rental income							4,467,217	3,080,240	$ 12,388,303	$ 8,483,023
Number of tenants \| Farm									39
Percent of total rental revenue									100.00%	100.00%
Tenant reimbursements							$ 1,957	$ 3,313	$ 7,989	$ 10,108
Area leased \| a							33,800	14,880	33,800	14,880
Area leased, percentage									100.00%	100.00%
Settlement payment			$ 164,000
Settlement interest			4,000
Land & Buildings [Member]
Real Estate Properties [Line Items]
Depreciation expense							$ 1,224,612	$ 595,539	$ 3,161,434	$ 1,647,177
California [Member]
Real Estate Properties [Line Items]
No. of Farms \| Farm									21	18
Additional rental income									$ 6,986,099	$ 5,652,357
Percent of total rental revenue									56.40%	66.60%
Area leased \| a							6,516	3,576	6,516	3,576
Area leased, percentage									19.30%	24.00%
Florida [Member]
Real Estate Properties [Line Items]
No. of Farms \| Farm									15	12
Additional rental income									$ 2,407,893	$ 1,458,433
Percent of total rental revenue									19.40%	17.20%
Area leased \| a							5,567	4,401	5,567	4,401
Area leased, percentage									16.50%	29.60%
McIntosh Road [Member]
Real Estate Properties [Line Items]
Additional rental income					$ 63,000
Extended lease term					3 years
Maturity date of lease					Jun. 30, 2019
Percentage increase in lease amount					17.90%
McIntosh Road [Member] \| Dover, FL [Member]
Real Estate Properties [Line Items]
No. of Farms \| Farm									2
Maturity date of lease									Jun. 30, 2017
Area leased \| a							94		94
Sycamore Road [Member]
Real Estate Properties [Line Items]
Expended or accrued for capital improvements						$ 993,319
Additional rental income						$ 53,550
Wauchula Road [Member]
Real Estate Properties [Line Items]
Additional rental income				$ 92,634
Cost of improvements				569,607
Parrish Road [Member]
Real Estate Properties [Line Items]
Additional rental income				139,073
Tenant reimbursements									$ 745,000
Parrish Road [Member] \| Maximum [Member]
Real Estate Properties [Line Items]
Acquisition of real estate property additional compensation committed upon irrigation improvements and upgrades to be incurred				$ 500,000
Espinosa Road [Member]
Real Estate Properties [Line Items]
Extended lease term	4 years
Settlement payment			$ 156,000
Area of nonfarmable land \| a			4.5
Annualized straight line rental income	$ 997,017
Percentage increase in rental revenue	28.10%
Colding Loop [Member]
Real Estate Properties [Line Items]
Minimum rental payments		$ 72,400
Deferred Rent Asset and Rental Income Written Off							$ 20,697		$ 84,600
Amortization of deferred charges							8,635
Dole Food Company [Member]
Real Estate Properties [Line Items]
No. of Farms \| Farm									2
Additional rental income									$ 2,200,000
Percent of total rental revenue									17.80%
Lease One [Member] \| McIntosh Road [Member] \| Dover, FL [Member]
Real Estate Properties [Line Items]
Maturity date of lease									Jun. 30, 2017
Lease Two [Member] \| McIntosh Road [Member] \| Dover, FL [Member]
Real Estate Properties [Line Items]
Maturity date of lease									Jun. 30, 2019
2016 New Real Estate Activity [Member]
Real Estate Properties [Line Items]
No. of Farms \| Farm									13
Number of transactions \| transaction									7
Additional rental income							$ 769,171		$ 1,474,688
Area leased \| a							16,988		16,988
2015 New Real Estate Activity [Member]
Real Estate Properties [Line Items]
No. of Farms \| Farm										9
Number of transactions \| transaction										6
Additional rental income								$ 629,000		$ 1,086,976
Area leased \| a								6,841		6,841
2015 New Real Estate Activity [Member] \| Parrish Road [Member]
Real Estate Properties [Line Items]
Additional rental income								$ 62,958		$ 140,133
2015 New Real Estate Activity [Member] \| Espinosa Road [Member]
Real Estate Properties [Line Items]
Additional rental income								$ 194,586		$ 575,387
Scenario, Forecast [Member] \| Espinosa Road [Member]
Real Estate Properties [Line Items]
Property taxes											$ 144,000
Below-market lease and deferred revenue [Member]
Real Estate Properties [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life									20 years 10 months 24 days	0 years
Customer Relationships [Member]
Real Estate Properties [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life									0 years	9 years 6 months