Quarterly report pursuant to Section 13 or 15(d)

Real Estate and Intangible Assets - Purchase Price Allocations (Detail)

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Real Estate and Intangible Assets - Purchase Price Allocations (Detail) - USD ($)
$ in Thousands
Mar. 31, 2018
Dec. 31, 2017
2018 New Real Estate Activity    
Business Acquisition [Line Items]    
Total Purchase Price $ 5,045  
2018 New Real Estate Activity | Irrigation & Drainage Systems    
Business Acquisition [Line Items]    
Total Purchase Price 582  
2018 New Real Estate Activity | Horticulture    
Business Acquisition [Line Items]    
Total Purchase Price 961  
2018 New Real Estate Activity | In-place leases    
Business Acquisition [Line Items]    
Total Purchase Price 76  
2018 New Real Estate Activity | Leasing costs    
Business Acquisition [Line Items]    
Total Purchase Price 47  
2018 New Real Estate Activity | Land and Land Improvements    
Business Acquisition [Line Items]    
Total Purchase Price 3,256  
2018 New Real Estate Activity | Buildings    
Business Acquisition [Line Items]    
Total Purchase Price $ 123  
2017 New Real Estate Activity    
Business Acquisition [Line Items]    
Total Purchase Price   $ 54,000
2017 New Real Estate Activity | Irrigation & Drainage Systems    
Business Acquisition [Line Items]    
Total Purchase Price   1,447
2017 New Real Estate Activity | Horticulture    
Business Acquisition [Line Items]    
Total Purchase Price   0
2017 New Real Estate Activity | In-place leases    
Business Acquisition [Line Items]    
Total Purchase Price   0
2017 New Real Estate Activity | Leasing costs    
Business Acquisition [Line Items]    
Total Purchase Price   0
2017 New Real Estate Activity | Land and Land Improvements    
Business Acquisition [Line Items]    
Total Purchase Price   52,375
2017 New Real Estate Activity | Buildings    
Business Acquisition [Line Items]    
Total Purchase Price   $ 178