Gladstone Land Corporation Annual report pursuant to Section 13 and 15(d)

Annual report pursuant to Section 13 and 15(d)

Equity - Additional Information (Detail)

Equity - Additional Information (Detail)							1 Months Ended	12 Months Ended		21 Months Ended
Equity - Additional Information (Detail)	Jan. 13, 2021 shares	Apr. 03, 2020 $ / shares shares	Apr. 01, 2020 USD ($) security	Mar. 09, 2020 USD ($) shares	Feb. 20, 2020 shares	May 31, 2018 USD ($) $ / shares shares	Jan. 31, 2021 USD ($) $ / shares shares	Dec. 31, 2021 USD ($) $ / shares shares	Dec. 31, 2020 USD ($) $ / shares shares	Dec. 31, 2021 USD ($) $ / shares shares	May 18, 2021 USD ($)	May 12, 2020 USD ($)	Aug. 07, 2015 USD ($)
Sale of Stock [Line Items]
Stock authorized and unissued (in shares)					26,000,000
Common stock, shares authorized (in shares)	3,600,000							63,953,993	65,544,073	63,953,993
Common stock, shares issued (in shares)								34,210,013	26,219,019	34,210,013
Proceeds from issuance of preferred and common equity \| $								$ 233,393,000	$ 130,348,000	$ 241,200,000
Term preferred stock, fair value \| $								$ 4,000,000		$ 4,000,000
Weighted-average issuance price (in dollars per share) \| $ / shares								$ 19.42
Partners' capital account (in shares)									288,303
OP Unit Holder
Sale of Stock [Line Items]
Company's ownership percent								99.40%	100.00%	99.40%
Registration Statement
Sale of Stock [Line Items]
Securities allowed for issuance (amount up to) \| $			$ 1,000,000,000
Maximum number of securities that can be sold (in securities) \| security			2
Common Stock \| Registration Statement
Sale of Stock [Line Items]
Common stock, shares issued (in shares)								12,575,252		12,575,252
Common stock, issued (in shares)										288,303
Gladstone Land Limited Partnership
Sale of Stock [Line Items]
OP units held by non-controlling limited partners (in shares)								204,778	0
Series C Preferred Stock
Sale of Stock [Line Items]
Preferred stock, shares issued (in shares)								3,493,333	1,088,435	3,493,333
Preferred stock, par value (in dollars per share) \| $ / shares								$ 0.001	$ 0.001	$ 0.001
Preferred stock, shares authorized (in shares)								25,989,942	25,999,862	25,989,942
Redemption of preferred stock \| $								$ 248,000	$ 3,000
Series C Preferred Stock \| Preferred Stock
Sale of Stock [Line Items]
Preferred stock, dividend rate		6.00%			6.00%
Maximum amount authorized in Primary Offering (in shares)		26,000,000
Preferred stock, par value (in dollars per share) \| $ / shares		$ 0.001
Average sales price of common stock sold (in dollars per share) \| $ / shares		$ 25.00
Gross proceeds \| $								$ 59,720,000	$ 26,987,000
Preferred stock, shares authorized (in shares)		20,000,000
Sale of stock pursuant to DRIP (in dollars per share) \| $ / shares		$ 22.75
Preferred stock, shares authorized, pursuant to DRIP (in shares)		6,000,000
Redemptions of Series B Preferred Stock (in shares)								9,920	138
Redemption of preferred stock \| $								$ 248,000	$ 3,000
Consideration received on transaction \| $								704,000
Costs incurred \| $								$ 54,760,000	$ 24,759,000
Series C Preferred Stock \| Preferred Stock \| Registration Statement
Sale of Stock [Line Items]
Common stock, shares issued (in shares)								3,503,391		3,503,391
Series C Preferred Stock \| Preferred Stock \| Series C Termination
Sale of Stock [Line Items]
Preferred stock, shares authorized (in shares)		20,000,000
Series C Preferred Stock \| Common Stock \| Registration Statement
Sale of Stock [Line Items]
Proceeds from issuance of preferred and common equity \| $										$ 86,900,000
Series D Preferred Stock
Sale of Stock [Line Items]
Preferred stock, dividend rate							5.00%
Preferred stock, shares issued (in shares)							2,415,000	2,415,000	0	2,415,000
Preferred stock, par value (in dollars per share) \| $ / shares							$ 0.001	$ 0.001	$ 0.001	$ 0.001
Preferred stock, shares authorized (in shares)								3,600,000	0	3,600,000
Series D Preferred Stock \| Preferred Stock
Sale of Stock [Line Items]
Preferred stock, dividend rate	5.00%
Proceeds from issuance of preferred and common equity \| $							$ 58,300,000
Series D Preferred Stock \| Preferred Stock \| Registration Statement
Sale of Stock [Line Items]
Proceeds from issuance of preferred and common equity \| $										$ 60,400,000
Series D Preferred Stock \| Common Stock \| Registration Statement
Sale of Stock [Line Items]
Preferred stock, shares issued (in shares)								2,415,000		2,415,000
Series B Preferred Stock
Sale of Stock [Line Items]
Preferred stock, shares issued (in shares)								5,956,065		5,956,065
Preferred stock, par value (in dollars per share) \| $ / shares								$ 0.001	$ 0.001	$ 0.001
Preferred stock, shares authorized (in shares)								6,456,065	6,456,065	6,456,065
Redemption of preferred stock \| $									$ 681,000
Series B Preferred Stock \| Preferred Stock
Sale of Stock [Line Items]
Preferred stock, dividend rate						6.00%
Securities allowed for issuance (amount up to) \| $						$ 150,000,000
Maximum amount authorized in Primary Offering (in shares)						6,000,000
Preferred stock, par value (in dollars per share) \| $ / shares						$ 0.001
Average sales price of common stock sold (in dollars per share) \| $ / shares						$ 25.00
Redemptions of Series B Preferred Stock (in shares)									29,335
Series B Preferred Stock \| Preferred Stock \| Series B Termination
Sale of Stock [Line Items]
Securities allowed for issuance (amount up to) \| $				$ 147,500,000
Maximum amount authorized in Primary Offering (in shares)				6,000,000
Gross proceeds \| $				$ 133,400,000
Common Stock
Sale of Stock [Line Items]
Common stock, value authorized \| $												$ 260,000,000
Common Stock \| ATM Program
Sale of Stock [Line Items]
Gross proceeds \| $								$ 173,428,000	$ 45,883,000
Costs incurred \| $								$ 171,693,000	45,424,000
Common stock, value authorized \| $											$ 160,000,000	$ 100,000,000	$ 30,000,000
Common Stock \| Follow-on Offerings
Sale of Stock [Line Items]
Gross proceeds \| $									27,300,000
Costs incurred \| $									$ 26,100,000