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			33 Months Ended
Equity - Additional Information (Detail)	Nov. 09, 2022 $ / shares shares	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, 2022 USD ($) $ / shares shares	Dec. 31, 2021 USD ($) $ / shares shares	Dec. 31, 2020 USD ($) $ / shares shares	Dec. 31, 2022 USD ($) $ / shares shares	Aug. 24, 2022 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)	16,000,000	3,600,000							47,992,588	63,953,993		47,992,588
Proceeds from issuance of preferred and common equity \| $									$ 188,106,000	$ 233,393,000	$ 130,348,000	$ 267,800,000
Common stock, shares issued (in shares)									35,050,397	34,210,013		35,050,397
Common stock, conversion ratio									1			1
Term preferred stock, fair value \| $									$ 7,700,000	$ 4,000,000		$ 7,700,000
Weighted-average issuance price (in dollars per share) \| $ / shares									$ 37.45	$ 19.42
Partners' capital account (in shares)											288,303
OP Unit Holder
Sale of Stock [Line Items]
Company's ownership percent									100.00%	99.40%	100.00%	100.00%
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)									13,703,939			13,703,939
Gladstone Land Limited Partnership
Sale of Stock [Line Items]
OP units held by non-controlling limited partners (in shares)									0	204,778	0
Operating partnership units redeemed										204,778
Series C Preferred Stock
Sale of Stock [Line Items]
Stock authorized and unissued (in shares)	15,551,347
Preferred stock, shares issued (in shares)									10,191,353	3,493,333		10,191,353
Preferred stock, par value (in dollars per share) \| $ / shares									$ 0.001	$ 0.001		$ 0.001
Preferred stock, shares authorized (in shares)									25,951,347	25,989,942		25,951,347
Redemption of preferred stock \| $									$ 901,000	$ 248,000	$ 3,000
Series C Preferred Stock \| Registration Statement
Sale of Stock [Line Items]
Preferred stock, shares issued (in shares)									10,240,006			10,240,006
Series C Preferred Stock \| Preferred Stock
Sale of Stock [Line Items]
Preferred stock, dividend rate			6.00%			6.00%
Securities allowed for issuance (amount up to) \| $									$ 252,600,000			$ 252,600,000
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 \| $									$ 165,941,000	$ 59,720,000	$ 26,987,000
Preferred stock, shares authorized (in shares)			20,000,000						10,200,000			10,200,000	10,200,000
Preferred stock, shares authorized, pursuant to DRIP (in shares)			6,000,000										200,000
Sale of stock pursuant to DRIP (in dollars per share) \| $ / shares			$ 22.75
Redemptions of Series B Preferred Stock (in shares)									38,595	9,920	138
Redemption of preferred stock \| $									$ 901,000	$ 248,000	$ 3,000
Consideration received, net \| $									230,500,000
Write-off of unamortized deferred offering costs associated with cumulative redeemable preferred stock (Series C) \| $									$ 798,000
Number of Shares Sold (in shares)									6,701,987	2,407,027	1,088,315
Weighted-average offering price per share (in dollars per share) \| $ / shares									$ 24.76	$ 24.81	$ 24.80
Costs incurred \| $									$ 152,470,000	$ 54,760,000	$ 24,759,000
Series C Preferred Stock \| Common Stock \| Registration Statement
Sale of Stock [Line Items]
Proceeds from issuance of preferred and common equity \| $												$ 253,600,000
Series D Preferred Stock
Sale of Stock [Line Items]
Stock authorized and unissued (in shares)	1,185,000
Preferred stock, dividend rate								5.00%
Preferred stock, shares issued (in shares)								2,415,000	2,415,000	2,415,000		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	3,600,000		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 E Preferred Stock
Sale of Stock [Line Items]
Preferred stock, shares issued (in shares)									0	0		0
Preferred stock, par value (in dollars per share) \| $ / shares									$ 0.001	$ 0.001		$ 0.001
Preferred stock, shares authorized (in shares)									16,000,000	0		16,000,000
Series E Preferred Stock \| Preferred Stock
Sale of Stock [Line Items]
Preferred stock, dividend rate	5.00%
Maximum amount authorized in Primary Offering (in shares)	8,000,000
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
Preferred stock, shares authorized (in shares)	8,000,000
Common Stock
Sale of Stock [Line Items]
Weighted-average offering price per share (in dollars per share) \| $ / shares									$ 26.47	$ 21.70	$ 14.82
Common stock, value authorized \| $															$ 260,000,000
Common Stock \| Follow-on Offerings
Sale of Stock [Line Items]
Gross proceeds \| $											$ 27,300,000
Number of Shares Sold (in shares)											1,897,500
Weighted-average offering price per share (in dollars per share) \| $ / shares											$ 14.40
Costs incurred \| $											$ 26,100,000
Common Stock \| ATM Program
Sale of Stock [Line Items]
Gross proceeds \| $									$ 22,242,000	$ 173,428,000	$ 45,883,000
Number of Shares Sold (in shares)									840,384	7,990,994	3,096,558
Costs incurred \| $									$ 21,993,000	$ 171,693,000	$ 45,424,000
Common stock, value authorized \| $														$ 160,000,000	$ 100,000,000	$ 30,000,000
Series B Preferred Stock
Sale of Stock [Line Items]
Preferred stock, shares issued (in shares)									5,956,065	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)											29,355
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