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

Quarterly report pursuant to Section 13 or 15(d)

Equity - Additional Information (Details)

Equity - Additional Information (Details)			3 Months Ended		12 Months Ended	24 Months Ended
Equity - Additional Information (Details)	May 31, 2018 USD ($) $ / shares shares	Apr. 12, 2017 USD ($) security	Mar. 31, 2019 USD ($) $ / shares shares	Mar. 31, 2018 USD ($) shares	Dec. 31, 2018 USD ($) $ / shares shares	Mar. 31, 2019 USD ($) $ / shares shares	Jan. 10, 2018 shares	Jan. 09, 2018 shares	Dec. 31, 2017 shares	Aug. 07, 2015 USD ($)
Subsidiary, Sale of Stock [Line Items]
Stock authorized and unissued (in shares)							6,500,000
Common stock, shares authorized (in shares)			91,500,000		91,500,000	91,500,000		98,000,000
Preferred stock, liquidation value \| $			$ 47,300,000		$ 28,600,000	$ 47,300,000
Common stock, par value (in dollars per share) \| $ / shares			$ 0.001		$ 0.001	$ 0.001
Common stock, shares issued (in shares)			18,462,219		17,891,340	18,462,219
Common stock, shares outstanding (in shares)			18,462,219		17,891,340	18,462,219
Maximum number of securities that can be sold (in securities) \| security		2
Proceeds from issuance of preferred and common equity \| $			$ 18,482,000	$ 17,486,000
Discounts and offering expenses \| $			1,729,000	685,000
Stock Redeemed or Called During Period, Value \| $			$ 13,000	$ 400,000
2017 Registration Statement
Subsidiary, Sale of Stock [Line Items]
Proceeds from issuance of preferred and common equity \| $						$ 67,500,000
ATM Program
Subsidiary, Sale of Stock [Line Items]
Common stock, shares issued (in shares)			1,595,591			1,595,591
Common stock, value authorized \| $										$ 30,000,000.0
Sale of common stock sold under sale agreement (in shares)			0
Average sales price price (in dollars per share) \| $ / shares			$ 12.87			$ 12.87
Common stock, value, outstanding \| $			$ 20,500,000			$ 20,500,000
Common stock, value, issued \| $			$ 20,200,000			$ 20,200,000
Common Stock
Subsidiary, Sale of Stock [Line Items]
Common stock, shares outstanding (in shares)			18,462,219	15,216,199	17,891,340	18,462,219			13,791,574
Common Stock \| 2017 Registration Statement
Subsidiary, Sale of Stock [Line Items]
Common stock, shares issued (in shares)			5,396,030			5,396,030
Common stock issued (in shares)						1,215,565
Securities allowed for issuance (amount up to) \| $		$ 300,000,000
Series B Preferred Stock
Subsidiary, Sale of Stock [Line Items]
Preferred stock, shares authorized (in shares)			6,500,000		6,500,000	6,500,000
Preferred stock, par value (in dollars per share) \| $ / shares			$ 0.001		$ 0.001	$ 0.001
Preferred stock, shares issued (in shares)			1,891,709		1,144,393	1,891,709
Preferred stock, shares outstanding (in shares)			1,891,709		1,144,393	1,891,709
Series B Preferred Stock \| Preferred Stock
Subsidiary, Sale of Stock [Line Items]
Preferred stock, shares outstanding (in shares)			1,891,709	0	1,144,393	1,891,709			0
Securities allowed for issuance (amount up to) \| $	$ 150,000,000
Maximum amount authorized in Primary Offering (in shares)	6,000,000
Dividend rate (as percent)	6.00%
Average sales price of common stock sold (in dollars per share) \| $ / shares	$ 25
Proceeds from issuance of preferred stock \| $	$ 131,300,000		$ 18,500,000			$ 46,600,000
Discounts and offering expenses \| $			861,000
Net proceeds from issuance of stock \| $			16,800,000
Stock Redeemed or Called During Period, Value \| $			$ 13
Sale of common stock sold under sale agreement (in shares)			747,916			1,892,309
OP Unit Holder
Subsidiary, Sale of Stock [Line Items]
Company's ownership percent (as percent)			100.00%		96.90%	100.00%
Minimum period required to exercise, in months			12 months
Gladstone Land Limited Partnership
Subsidiary, Sale of Stock [Line Items]
OP units held by non-controlling limited partners (in shares)			0		570,879