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

Annual report pursuant to Section 13 and 15(d)

Stockholders' Equity - Additional Information (Detail)

Stockholders' Equity - Additional Information (Detail) (USD $)	12 Months Ended			0 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2014	Jan. 28, 2013	Sep. 24, 2014	Oct. 29, 2014	Oct. 24, 2014	Apr. 02, 2014
Subsidiary, Sale of Stock [Line Items]
Gross proceeds from initial public offering	$ 56,700,000
Distributions paid	2,458,802us-gaap_PaymentsOfDividends	9,730,093us-gaap_PaymentsOfDividends
Common stock, shares issued	7,753,717us-gaap_CommonStockSharesIssued	6,530,264us-gaap_CommonStockSharesIssued		7,753,717us-gaap_CommonStockSharesIssued
Dividend declared or paid			$ 0land_DividendDeclaredOrPaid
Accumulated earnings and profits		9,600,000us-gaap_RetainedEarningsUnappropriated
Maximum [Member]
Subsidiary, Sale of Stock [Line Items]
Securities allowed for issuance									300,000,000
Common Stock [Member]
Subsidiary, Sale of Stock [Line Items]
Common stock shares issued	1,223,453	3,780,264
Public offering price					15.00
Net proceeds after deducting offering expenses	51,300,000
Gross proceeds from issuance of common stock	15,000,000
Value of common stock issuable per registration statement	35,000,000
IPO [Member]
Subsidiary, Sale of Stock [Line Items]
Common stock shares issued					3,333,334
Additional common stock shares issued	3,780,264
Invested in new property acquisition		37,900,000
Expended or accrued for capital improvements		1,700,000
Distributions paid				10,300,000
Uninvested proceed from initial public offering	0			0
Follow-on Offering [Member]
Subsidiary, Sale of Stock [Line Items]
Net proceeds after deducting offering expenses						13,200,000
Common stock, shares issued						1,150,000
Price per share						$ 12.28
Gross proceeds from issuance of common stock						14,100,000
Proceeds from common stock used to repay existing indebtedness						11,100,000
Uninvested proceeds from stock offerings	0			0
Over-Allotment Option [Member]
Subsidiary, Sale of Stock [Line Items]
Additional common stock shares issued								73,453
Net proceeds after deducting offering expenses							843,000
Gross proceeds from issuance of common stock							$ 902,000