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

Quarterly report pursuant to Section 13 or 15(d)

Borrowings - Summary of Mortgage Note Payable and Line of Credit Additional Information (Detail)

Borrowings - Summary of Mortgage Note Payable and Line of Credit Additional Information (Detail)							1 Months Ended				3 Months Ended			9 Months Ended
	Sep. 08, 2017 USD ($)	Aug. 09, 2017 USD ($)	Jul. 17, 2017 USD ($)	Jul. 13, 2017 USD ($)	Jun. 14, 2017 USD ($)	May 31, 2017 USD ($) debt_instrument	Apr. 30, 2017 USD ($)	Feb. 28, 2017 USD ($)	Jan. 31, 2017	Mar. 31, 2016 USD ($)	Sep. 30, 2017 USD ($) debt_instrument property	Mar. 31, 2017	Sep. 30, 2016 USD ($)	Sep. 30, 2017 USD ($) debt_instrument property	Sep. 30, 2016 USD ($)	Sep. 19, 2017	Jan. 12, 2017 USD ($)	Jun. 16, 2016 USD ($)	Dec. 05, 2014 USD ($)
Debt Instrument [Line Items]
Other income											$ 4,000		$ 2,000	$ 190,000	$ 106,000
New MetLife Facility
Debt Instrument [Line Items]
Principal Outstanding											$ 136,310,000			$ 136,310,000
Commitment fee (as percent)											0.20%			0.20%
Long-term debt, additional amount available											$ 12,900,000			$ 12,900,000
Minimum annualized rate (as percent)														2.50%
Farm Credit Notes Payable
Debt Instrument [Line Items]
Number of Loans Outstanding \| debt_instrument											14			14
Principal Outstanding											$ 61,107,000			$ 61,107,000
Reduced stated interest rate (as percent)														17.20%
Reduction in basis points (as percent)														0.61%
Farm Credit CFL
Debt Instrument [Line Items]
Aggregate Commitment				$ 5,472,000
Debt term				28 years 4 months 14 days
Number of Loans Outstanding \| debt_instrument											8			8
Principal Outstanding											$ 27,472,000			$ 27,472,000
Interest rate (as percent)											4.15%			4.15%
Interest rate (as percent)				4.47%
Number of loans with amended agreements \| debt_instrument											4
Other income							$ 124,000			$ 94,000
Reduced stated interest rate (as percent)												15.80%
Reduction in basis points (as percent)											0.55%
Farm Credit West
Debt Instrument [Line Items]
Aggregate Commitment			$ 8,162,000
Debt term			20 years
Number of Loans Outstanding \| debt_instrument											3			3
Principal Outstanding											$ 21,054,000			$ 21,054,000
Interest rate (as percent)											3.91%			3.91%
Interest rate (as percent)			4.31%
Other income								$ 59,000					$ 0
Reduced stated interest rate (as percent)									21.30%
Reduction in basis points (as percent)												0.76%
CF Farm Credit
Debt Instrument [Line Items]
Aggregate Commitment					$ 1,301,000
Debt term					40 years 2 months
Number of Loans Outstanding \| debt_instrument											1			1
Principal Outstanding											$ 1,301,000			$ 1,301,000
Interest rate (as percent)											4.41%			4.41%
Farm Credit FL
Debt Instrument [Line Items]
Aggregate Commitment		$ 5,820,000
Debt term		19 years 6 months
Number of Loans Outstanding \| debt_instrument											1			1
Principal Outstanding											$ 5,820,000			$ 5,820,000
Interest rate (as percent)											4.70%			4.70%
NW Farm Credit
Debt Instrument [Line Items]
Aggregate Commitment	$ 5,460,000
Debt term	39 years 7 months 6 days
Number of Loans Outstanding \| debt_instrument											1			1
Principal Outstanding											$ 5,460,000			$ 5,460,000
Interest rate (as percent)											4.41%			4.41%
Farmer Mac Bonds Payable
Debt Instrument [Line Items]
Aggregate Commitment											$ 125,000,000			$ 125,000,000				$ 125,000,000	$ 75,000,000
Number of Loans Outstanding \| debt_instrument											14			14
Principal Outstanding											$ 84,519,000			$ 84,519,000
Interest rate (as percent)											3.13%			3.13%
Undrawn Commitment											$ 39,118,000			$ 39,118,000
Long-term debt, additional amount available											$ 0			$ 0
Properties pledged as collateral \| property											0			0
Farmer Mac Bonds Payable, 2017 Issuances
Debt Instrument [Line Items]
Aggregate Commitment																	$ 35,625,000
Number of Loans Outstanding \| debt_instrument											5			5
Farmer Mac Bonds Payable, 2017 Issuances \| Minimum
Debt Instrument [Line Items]
Interest rate (as percent)																	2.80%
Farmer Mac Bonds Payable, 2017 Issuances \| Maximum
Debt Instrument [Line Items]
Interest rate (as percent)																	4.05%
Notes payable to bank \| Metlife Term Loans
Debt Instrument [Line Items]
Aggregate Commitment						$ 15,300,000
Debt term						28 years 7 months
Number of Loans Outstanding \| debt_instrument						2
Interest rate (as percent)																3.85%
Notes payable to bank \| Metlife Term Loans \| Minimum
Debt Instrument [Line Items]
Interest rate (as percent)						3.55%
Notes payable to bank \| Metlife Term Loans \| Maximum
Debt Instrument [Line Items]
Interest rate (as percent)						3.85%
Notes payable to bank \| New MetLife Facility
Debt Instrument [Line Items]
Aggregate Commitment											$ 150,000,000			$ 150,000,000
Principal Outstanding											$ 131,210,000			$ 131,210,000
Interest rate (as percent)											3.30%			3.30%
Undrawn Commitment											$ 13,530,000			$ 13,530,000
Amortizing principal payments											5,300,000			5,300,000
Notes payable to bank \| CF Farm Credit
Debt Instrument [Line Items]
Interest rate (as percent)					4.41%
Notes payable to bank \| Farm Credit FL
Debt Instrument [Line Items]
Interest rate (as percent)		4.70%
Notes payable to bank \| NW Farm Credit
Debt Instrument [Line Items]
Interest rate (as percent)	4.41%
MetLife Lines of Credit \| New MetLife Facility
Debt Instrument [Line Items]
Aggregate Commitment											50,000,000			50,000,000
Principal Outstanding											5,100,000			5,100,000
Undrawn Commitment											$ 44,900,000			$ 44,900,000
Effective interest rate (as percent)											3.55%			3.55%
MetLife Lines of Credit \| New MetLife Facility \| LIBOR
Debt Instrument [Line Items]
Percentage added to LIBOR (as percent)														2.25%