Quarterly report pursuant to Section 13 or 15(d)

Real Estate and Intangible Assets - Fair Value of Assets Acquired and Liabilities Assumed Related to Property Acquired (Detail)

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Real Estate and Intangible Assets - Fair Value of Assets Acquired and Liabilities Assumed Related to Property Acquired (Detail) - USD ($)
$ in Thousands
Jun. 30, 2017
Jun. 30, 2016
2017 New Real Estate Activity    
Business Acquisition [Line Items]    
Total Purchase Price $ 83,669  
2017 New Real Estate Activity | Citrus Boulevard    
Business Acquisition [Line Items]    
Total Purchase Price 54,000  
2017 New Real Estate Activity | Spot Road(4)    
Business Acquisition [Line Items]    
Total Purchase Price 27,500  
2017 New Real Estate Activity | Poplar Street    
Business Acquisition [Line Items]    
Total Purchase Price 2,169  
2017 New Real Estate Activity | Irrigation Systems    
Business Acquisition [Line Items]    
Total Purchase Price 10,336  
2017 New Real Estate Activity | Irrigation Systems | Citrus Boulevard    
Business Acquisition [Line Items]    
Total Purchase Price 1,447  
2017 New Real Estate Activity | Irrigation Systems | Spot Road(4)    
Business Acquisition [Line Items]    
Total Purchase Price 8,584  
2017 New Real Estate Activity | Irrigation Systems | Poplar Street    
Business Acquisition [Line Items]    
Total Purchase Price 305  
2017 New Real Estate Activity | Other Improvements    
Business Acquisition [Line Items]    
Total Purchase Price 455  
2017 New Real Estate Activity | Other Improvements | Citrus Boulevard    
Business Acquisition [Line Items]    
Total Purchase Price 0  
2017 New Real Estate Activity | Other Improvements | Spot Road(4)    
Business Acquisition [Line Items]    
Total Purchase Price 455  
2017 New Real Estate Activity | Leasehold Interest – Land    
Business Acquisition [Line Items]    
Total Purchase Price 706  
2017 New Real Estate Activity | Leasehold Interest – Land | Citrus Boulevard    
Business Acquisition [Line Items]    
Total Purchase Price 0  
2017 New Real Estate Activity | Leasehold Interest – Land | Spot Road(4)    
Business Acquisition [Line Items]    
Total Purchase Price 0  
2017 New Real Estate Activity | Leasehold Interest – Land | Poplar Street    
Business Acquisition [Line Items]    
Total Purchase Price 706  
2017 New Real Estate Activity | Leasehold interest – land    
Business Acquisition [Line Items]    
Total Purchase Price 3,488  
2017 New Real Estate Activity | Leasehold interest – land | Citrus Boulevard    
Business Acquisition [Line Items]    
Total Purchase Price 0  
2017 New Real Estate Activity | Leasehold interest – land | Spot Road(4)    
Business Acquisition [Line Items]    
Total Purchase Price 3,488  
2017 New Real Estate Activity | Leasehold interest – land | Poplar Street    
Business Acquisition [Line Items]    
Total Purchase Price 0  
2017 New Real Estate Activity | In-place leases    
Business Acquisition [Line Items]    
Total Purchase Price 254  
2017 New Real Estate Activity | In-place leases | Citrus Boulevard    
Business Acquisition [Line Items]    
Total Purchase Price 0  
2017 New Real Estate Activity | In-place leases | Spot Road(4)    
Business Acquisition [Line Items]    
Total Purchase Price 254  
2017 New Real Estate Activity | In-place leases | Poplar Street    
Business Acquisition [Line Items]    
Total Purchase Price 0  
2017 New Real Estate Activity | Leasing costs    
Business Acquisition [Line Items]    
Total Purchase Price 468  
2017 New Real Estate Activity | Leasing costs | Citrus Boulevard    
Business Acquisition [Line Items]    
Total Purchase Price 0  
2017 New Real Estate Activity | Leasing costs | Spot Road(4)    
Business Acquisition [Line Items]    
Total Purchase Price 468  
2017 New Real Estate Activity | Leasing costs | Poplar Street    
Business Acquisition [Line Items]    
Total Purchase Price 0  
2017 New Real Estate Activity | Above-market lease values | Spot Road(4) | Agricultural    
Business Acquisition [Line Items]    
Total Purchase Price 15  
2017 New Real Estate Activity | Below -market lease | Spot Road(4) | Agricultural    
Business Acquisition [Line Items]    
Total Purchase Price (15)  
2017 New Real Estate Activity | Land and Land Improvements    
Business Acquisition [Line Items]    
Total Purchase Price 65,839  
2017 New Real Estate Activity | Land and Land Improvements | Citrus Boulevard    
Business Acquisition [Line Items]    
Total Purchase Price 52,375  
2017 New Real Estate Activity | Land and Land Improvements | Spot Road(4)    
Business Acquisition [Line Items]    
Total Purchase Price 12,354  
2017 New Real Estate Activity | Land and Land Improvements | Poplar Street    
Business Acquisition [Line Items]    
Total Purchase Price 1,110  
2017 New Real Estate Activity | Buildings    
Business Acquisition [Line Items]    
Total Purchase Price 2,123  
2017 New Real Estate Activity | Buildings | Citrus Boulevard    
Business Acquisition [Line Items]    
Total Purchase Price 178  
2017 New Real Estate Activity | Buildings | Spot Road(4)    
Business Acquisition [Line Items]    
Total Purchase Price 1,897  
2017 New Real Estate Activity | Buildings | Poplar Street    
Business Acquisition [Line Items]    
Total Purchase Price $ 48  
2016 New Real Estate Activity    
Business Acquisition [Line Items]    
Total Purchase Price   $ 41,206
2016 New Real Estate Activity | Gunbarrel Road    
Business Acquisition [Line Items]    
Total Purchase Price   25,736
2016 New Real Estate Activity | Calaveras Avenue    
Business Acquisition [Line Items]    
Total Purchase Price   15,470
2016 New Real Estate Activity | Irrigation Systems    
Business Acquisition [Line Items]    
Total Purchase Price   3,255
2016 New Real Estate Activity | Irrigation Systems | Gunbarrel Road    
Business Acquisition [Line Items]    
Total Purchase Price   2,831
2016 New Real Estate Activity | Irrigation Systems | Calaveras Avenue    
Business Acquisition [Line Items]    
Total Purchase Price   424
2016 New Real Estate Activity | Other Improvements    
Business Acquisition [Line Items]    
Total Purchase Price   2,079
2016 New Real Estate Activity | Other Improvements | Gunbarrel Road    
Business Acquisition [Line Items]    
Total Purchase Price   2,079
2016 New Real Estate Activity | Other Improvements | Calaveras Avenue    
Business Acquisition [Line Items]    
Total Purchase Price   0
2016 New Real Estate Activity | Leasehold Interest – Land    
Business Acquisition [Line Items]    
Total Purchase Price   11,431
2016 New Real Estate Activity | Leasehold Interest – Land | Gunbarrel Road    
Business Acquisition [Line Items]    
Total Purchase Price   0
2016 New Real Estate Activity | Leasehold Interest – Land | Calaveras Avenue    
Business Acquisition [Line Items]    
Total Purchase Price   11,431
2016 New Real Estate Activity | In-place leases    
Business Acquisition [Line Items]    
Total Purchase Price   382
2016 New Real Estate Activity | In-place leases | Gunbarrel Road    
Business Acquisition [Line Items]    
Total Purchase Price   382
2016 New Real Estate Activity | In-place leases | Calaveras Avenue    
Business Acquisition [Line Items]    
Total Purchase Price   0
2016 New Real Estate Activity | Leasing costs    
Business Acquisition [Line Items]    
Total Purchase Price   250
2016 New Real Estate Activity | Leasing costs | Gunbarrel Road    
Business Acquisition [Line Items]    
Total Purchase Price   250
2016 New Real Estate Activity | Leasing costs | Calaveras Avenue    
Business Acquisition [Line Items]    
Total Purchase Price   0
2016 New Real Estate Activity | Land and Land Improvements    
Business Acquisition [Line Items]    
Total Purchase Price   20,371
2016 New Real Estate Activity | Land and Land Improvements | Gunbarrel Road    
Business Acquisition [Line Items]    
Total Purchase Price   16,756
2016 New Real Estate Activity | Land and Land Improvements | Calaveras Avenue    
Business Acquisition [Line Items]    
Total Purchase Price   3,615
2016 New Real Estate Activity | Buildings and Improvements    
Business Acquisition [Line Items]    
Total Purchase Price   3,438
2016 New Real Estate Activity | Buildings and Improvements | Gunbarrel Road    
Business Acquisition [Line Items]    
Total Purchase Price   3,438
2016 New Real Estate Activity | Buildings and Improvements | Calaveras Avenue    
Business Acquisition [Line Items]    
Total Purchase Price   $ 0