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Business and Organization - Additional Information (Detail)

v2.4.0.8
Business and Organization - Additional Information (Detail) (Gladstone Land Advisers, Inc. [Member])
9 Months Ended
Sep. 30, 2013
Gladstone Land Advisers, Inc. [Member]
 
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]  
Company's ownership percent of voting securities of Land Advisers 100.00%