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

Quarterly report pursuant to Section 13 or 15(d)

Borrowings - Additional Information (Detail)

Borrowings - Additional Information (Detail) - USD ($)							3 Months Ended			9 Months Ended		12 Months Ended
Borrowings - Additional Information (Detail) - USD ($)	Sep. 30, 2015	Sep. 03, 2015	Aug. 20, 2015	Jun. 25, 2015	May. 08, 2015	Jan. 05, 2015	Sep. 30, 2015	Jun. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014	Apr. 09, 2015	Mar. 10, 2015	May. 09, 2014
Debt Instrument [Line Items]
Weighted average interest rate on borrowings							3.40%		3.60%	3.50%	3.60%
Note payable, outstanding	$ 140,085,394						$ 140,085,394			$ 140,085,394		$ 86,417,361
Line of credit, carrying value	5,000,000						5,000,000			5,000,000		4,000,000
Undrawn Commitment	77,714,806						77,714,806			77,714,806		$ 125,993,002
Bear Mountain [Member]
Debt Instrument [Line Items]
Notes payable, drew		$ 21,100,000
Fixed interest rate payment period		5 years
MetLife Mortgage Notes Payable [Member]
Debt Instrument [Line Items]
Debt instrument face amount	$ 100,000,000						$ 100,000,000			$ 100,000,000					$ 100,000,000
Maturity Date										Jan. 05, 2029
Debt instrument, fixed rate of interest	3.35%	3.35%					3.35%			3.35%		3.61%			3.50%
Commitment fee on undrawn amount	0.20%						0.20%			0.20%
Period for interest rate adjustment										3 years
Expiration date of commitment										Dec. 31, 2016
Extension of fixed-rate term		44 months
Extended fixed-rate term maturity year and month										2020-08
Extension of interest-only portion term		6 months
Extended interest-only portion maturity year and month										2016-07
Extension of draw period term		1 year
Extended draw period maturity year and month										2017-12
Note payable, outstanding	$ 87,470,194						$ 87,470,194			$ 87,470,194		$ 66,331,998
Line of credit, carrying value	5,000,000						5,000,000			5,000,000
Undrawn Commitment	12,529,806						12,529,806			12,529,806		$ 33,668,002
MetLife Mortgage Notes Payable [Member] \| As Previously Reported [Member]
Debt Instrument [Line Items]
Reduction in interest rate		0.26%
Blended fixed interest rate		3.61%
MetLife Mortgage Notes Payable [Member] \| Bear Mountain [Member]
Debt Instrument [Line Items]
Debt instrument, fixed rate of interest		3.35%
Metlife Line of Credit [Member]
Debt Instrument [Line Items]
Debt instrument face amount	$ 25,000,000						$ 25,000,000			$ 25,000,000					$ 25,000,000
Maturity Date										Apr. 05, 2024
Debt instrument, fixed rate of interest	2.58%						2.58%			2.58%		2.75%
Commitment fee on undrawn amount	0.20%						0.20%			0.20%
Debt instrument interest rate										Three-month LIBOR plus a spread of 2.50%
Percentage added to LIBOR		2.25%								2.50%
Minimum annualized rate		2.50%								2.75%
Reduction in interest rate spread, basis points		0.25%
Reduction in floor interest rate, basis points		0.25%
Note payable, outstanding	$ 5,000,000						$ 5,000,000			$ 5,000,000		$ 4,000,000
Line of credit, carrying value	5,000,000						5,000,000			5,000,000
Undrawn Commitment	20,000,000						20,000,000			20,000,000		$ 21,000,000
Remaining borrowing capacity	$ 2,000,000						$ 2,000,000			$ 2,000,000
Metlife Line of Credit [Member] \| As Previously Reported [Member]
Debt Instrument [Line Items]
Percentage added to LIBOR		2.50%
Farm Credit Interest Only Loans [Member]
Debt Instrument [Line Items]
Debt instrument, fixed rate of interest	3.20%						3.20%			3.20%
Aggregate notes payable													$ 3,300,000	$ 3,300,000
Expiration term										5 years
Total borrowings from credit notes payable	$ 17,800,000						$ 17,800,000			$ 17,800,000
Farm Credit Additional Loan[Member]
Debt Instrument [Line Items]
Additional borrowings					$ 2,600,000
Farm Credit Additional Loan[Member] \| Through April 30, 2018 [Member]
Debt Instrument [Line Items]
Debt instrument, fixed rate of interest	2.90%						2.90%			2.90%
Farm Credit Additional Loan[Member] \| After April 30, 2018 [Member]
Debt Instrument [Line Items]
Percentage added to LIBOR										3.00%
Credit notes payable interest rate there after, Description										LIBOR plus 3.00%
Farmer Mac Bonds Payable [Member]
Debt Instrument [Line Items]
Debt instrument face amount	$ 75,000,000						$ 75,000,000			$ 75,000,000
Debt instrument, fixed rate of interest	2.85%		2.38%	2.60%		3.25%	2.85%			2.85%		3.25%
Note payable, outstanding	$ 29,815,000						$ 29,815,000			$ 29,815,000		$ 3,675,000
Undrawn Commitment	45,185,000						45,185,000			$ 45,185,000		$ 71,325,000
Additional borrowings	29,800,000		$ 3,300,000	$ 9,400,000		$ 10,200,000
Expiration term			3 years	3 years		5 years
Farm Credit Mortgage Notes Payable [Member]
Debt Instrument [Line Items]
Reduction in interest rate								12.70%		12.70%		12.70%
Debt instrument face amount	$ 18,425,880						$ 18,425,880			$ 18,425,880
Debt instrument, fixed rate of interest	3.38%						3.38%			3.38%		3.53%
Note payable, outstanding	$ 17,800,200						$ 17,800,200			$ 17,800,200		$ 12,410,363
Metlife Line of Credit and Notes Payable [Member]
Debt Instrument [Line Items]
Undrawn Commitment	32,500,000						32,500,000			32,500,000
Mortgage Note Payable [Member] \| Mortgage Notes and Bonds Payable [Member]
Debt Instrument [Line Items]
Aggregate fair value of mortgage notes payable outstanding	135,400,000						135,400,000			135,400,000
Mortgage notes payable, carrying value	$ 135,100,000						$ 135,100,000			$ 135,100,000