Annual report pursuant to Section 13 and 15(d)

Schedule III - Real Estate and Accumulated Depreciation (Parenthetical) (Detail)

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Schedule III - Real Estate and Accumulated Depreciation (Parenthetical) (Detail) - USD ($)
 12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Aggregate cost $ 228,417,837 $ 148,371,478 $ 78,478,053 $ 39,678,968
Land, Buildings, Site Improvements & Horticulture [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Aggregate cost $ 222,300,000      
Buildings and Improvements [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Estimated useful life 39 years      
Horticulture [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Estimated useful life 25 years      
Equipment And Fixtures [Member] | Minimum [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Estimated useful life 5 years      
Equipment And Fixtures [Member] | Maximum [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Estimated useful life 7 years