Annual report pursuant to Section 13 and 15(d)

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

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Schedule III - Real Estate and Accumulated Depreciation (Narrative) (Detail) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]      
Aggregate cost $ 563,004 $ 466,143 $ 337,377
Land, Buildings, Improvements & Horticulture      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]      
Aggregate cost $ 564,100    
Buildings and Improvements      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]      
Estimated useful life 39 years    
Horticulture      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]      
Estimated useful life 40 years    
Equipment And Fixtures | Minimum      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]      
Estimated useful life 5 years    
Equipment And Fixtures | Maximum      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]      
Estimated useful life 10 years