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)							1 Months Ended		3 Months Ended		6 Months Ended		12 Months Ended	39 Months Ended
Equity - Additional Information (Details)	Apr. 03, 2020 $ / shares shares	Apr. 01, 2020 USD ($) security	Mar. 05, 2020 USD ($) shares	Feb. 20, 2020 $ / shares shares	May 31, 2018 $ / shares shares	Apr. 12, 2017 USD ($) security	Aug. 05, 2020 USD ($) shares	May 06, 2020 shares	Jun. 30, 2020 USD ($) $ / shares shares	Jun. 30, 2019 USD ($) shares	Jun. 30, 2020 USD ($) $ / shares shares	Jun. 30, 2019 USD ($) shares	Dec. 31, 2019 $ / shares shares	Jun. 30, 2020 USD ($) $ / shares shares	May 12, 2020 USD ($)	Mar. 31, 2020 shares	Feb. 19, 2020 shares	Mar. 31, 2019 shares	Dec. 31, 2018 shares	Aug. 07, 2015 USD ($)
Subsidiary, Sale of Stock [Line Items]
Stock authorized and unissued (in shares)				26,000,000
Common stock, shares authorized (in shares)				65,500,000					65,527,518		65,527,518		91,514,600	65,527,518			91,500,000
Common stock, par value (in dollars per share) \| $ / shares									$ 0.001		$ 0.001		$ 0.001	$ 0.001
Common stock, shares issued (in shares)									21,534,739		21,534,739		20,936,658	21,534,739
Common stock, shares outstanding (in shares)									21,534,739		21,534,739		20,936,658	21,534,739
Proceeds from issuance of preferred and common equity \| $											$ 39,563,000	$ 61,394,000
2017 Registration Statement
Subsidiary, Sale of Stock [Line Items]
Maximum number of securities that can be sold (in securities) \| security						2
Proceeds from issuance of preferred and common equity \| $														$ 117,400,000
2020 Registration Statement
Subsidiary, Sale of Stock [Line Items]
Maximum number of securities that can be sold (in securities) \| security		2
Proceeds from issuance of preferred and common equity \| $									$ 714,000,000
Allowance for credit loss, writeoff \| $											$ 29,000,000
Common Stock
Subsidiary, Sale of Stock [Line Items]
Common stock, shares outstanding (in shares)									21,534,739	20,532,770	21,534,739	20,532,770	20,936,658	21,534,739		21,346,458		18,462,219	17,891,340
Common Stock \| 2017 Registration Statement
Subsidiary, Sale of Stock [Line Items]
Common stock, shares issued (in shares)									9,495,834		9,495,834			9,495,834
Securities allowed for issuance (amount up to) \| $						$ 300,000,000.0
Shares of common stock issued (in shares)														1,215,565
Common Stock \| 2020 Registration Statement
Subsidiary, Sale of Stock [Line Items]
Common stock, shares issued (in shares)									44,129		44,129			44,129
Securities allowed for issuance (amount up to) \| $		$ 1,000,000,000.0
Shares of common stock issued (in shares)									144,152
Series B Preferred Stock
Subsidiary, Sale of Stock [Line Items]
Preferred stock, shares authorized (in shares)									6,472,482		6,472,482		6,485,400	6,472,482
Preferred stock, par value (in dollars per share) \| $ / shares									$ 0.001		$ 0.001		$ 0.001	$ 0.001
Preferred stock, shares issued (in shares)									5,972,482		5,972,482		4,755,869	5,972,482
Preferred stock, shares outstanding (in shares)									5,972,482		5,972,482		4,755,869	5,972,482
Redemptions of Series B Preferred Stock \| $									$ 124,000	$ 153,000	$ 309,000	$ 166,000
Series B Preferred Stock \| 2017 Registration Statement
Subsidiary, Sale of Stock [Line Items]
Proceeds from issuance of preferred and common equity \| $														$ 147,500,000
Series B Preferred Stock \| Preferred Stock
Subsidiary, Sale of Stock [Line Items]
Dividend rate (as percent)					6.00%
Preferred stock, shares outstanding (in shares)									5,972,482	2,636,068	5,972,482	2,636,068	4,755,869	5,972,482		5,977,647		1,891,709	1,144,393
Average sales price of common stock sold (in dollars per share) \| $ / shares					$ 25.00
Stock redeemed (in shares)									5,165	6,800	12,918	7,400
Redemptions of Series B Preferred Stock \| $									$ 123,000	$ 153,000	$ 309,000	$ 166,000
Maximum amount of securities can be sold under shelf registration statement (in shares)					6,000,000
Gross proceeds \| $										18,560,000	30,148,000	37,042,000
Net proceeds from issuance of stock \| $										16,901,000	$ 27,664,000	33,729,000
Series B Preferred Stock \| Preferred Stock \| 2017 Registration Statement
Subsidiary, Sale of Stock [Line Items]
Common stock, shares issued (in shares)									6,000,000		6,000,000			6,000,000
Series B Preferred Stock \| Preferred Stock \| Series B Termination
Subsidiary, Sale of Stock [Line Items]
Securities allowed for issuance (amount up to) \| $			$ 147,500,000
Maximum amount of securities can be sold under shelf registration statement (in shares)			6,000,000
Gross proceeds \| $			$ 133,400,000
Net proceeds from issuance of stock \| $			$ 1,600,000
Series C Preferred Stock
Subsidiary, Sale of Stock [Line Items]
Preferred stock, shares authorized (in shares)									26,000,000		26,000,000		0	26,000,000
Preferred stock, par value (in dollars per share) \| $ / shares									$ 0.001		$ 0.001		$ 0.001	$ 0.001
Preferred stock, shares issued (in shares)									130,702		130,702		0	130,702
Preferred stock, shares outstanding (in shares)									130,702		130,702		0	130,702
Series C Preferred Stock \| 2020 Registration Statement
Subsidiary, Sale of Stock [Line Items]
Proceeds from issuance of preferred and common equity \| $									$ 3,300,000
Series C Preferred Stock \| Preferred Stock
Subsidiary, Sale of Stock [Line Items]
Dividend rate (as percent)				6.00%	6.00%
Preferred stock, shares authorized (in shares)	20,000,000			120,000
Preferred stock, par value (in dollars per share) \| $ / shares				$ 0.001
Preferred stock, shares outstanding (in shares)									130,702		130,702			130,702
Average sales price of common stock sold (in dollars per share) \| $ / shares	$ 25.00			$ 25.00
Preferred stock, shares authorized, pursuant to DRIP (in shares)	6,000,000
Maximum amount of securities can be sold under shelf registration statement (in shares)	26,000,000			400,000				26,000,000
Gross proceeds \| $											$ 3,260,000
Net proceeds from issuance of stock \| $											2,973,000
Sale of stock pursuant to DRIP (in dollars per share) \| $ / shares	$ 22.75			$ 22.75
Net proceeds from issuance of stock, excluding selling commissions and dealer-manager fees \| $											$ 302,000
Series C Preferred Stock \| Preferred Stock \| 2020 Registration Statement
Subsidiary, Sale of Stock [Line Items]
Common stock, shares issued (in shares)									130,702		130,702			130,702
Series C Preferred Stock \| Preferred Stock \| Series C Termination
Subsidiary, Sale of Stock [Line Items]
Preferred stock, shares authorized (in shares)	20,000,000
Common Stock \| ATM Program
Subsidiary, Sale of Stock [Line Items]
Gross proceeds \| $									$ 714,000	893,000	$ 6,155,000	893,000
Net proceeds from issuance of stock \| $									$ 707,000	$ 879,000	$ 6,094,000	$ 879,000
Common stock, value authorized \| $															$ 100,000,000.0					$ 30,000,000.0
OP Unit Holder
Subsidiary, Sale of Stock [Line Items]
Company's ownership percent (as percent)									99.30%		99.30%		98.60%	99.30%
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)											144,151		288,303
Subsequent Event \| Series B Preferred Stock \| Preferred Stock
Subsidiary, Sale of Stock [Line Items]
Stock redeemed (in shares)							1,297
Redemptions of Series B Preferred Stock \| $							$ 29,000
Subsequent Event \| Series C Preferred Stock \| Preferred Stock
Subsidiary, Sale of Stock [Line Items]
Proceeds from issuance of preferred and common equity \| $							3,360,000
Subsequent Event \| Common Stock
Subsidiary, Sale of Stock [Line Items]
Proceeds from issuance of preferred and common equity \| $							$ 5,527,000