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 ($)
Jun. 30, 2016
Jun. 30, 2015
2015 New Real Estate Activity [Member]    
Business Acquisition [Line Items]    
Total Purchase Price   $ 36,576,480
2015 New Real Estate Activity [Member] | Espinosa Road [Member]    
Business Acquisition [Line Items]    
Total Purchase Price   16,905,500
2015 New Real Estate Activity [Member] | Parrish Road [Member]    
Business Acquisition [Line Items]    
Total Purchase Price   3,913,280
2015 New Real Estate Activity [Member] | Immokalee Exchange [Member]    
Business Acquisition [Line Items]    
Total Purchase Price   15,757,700
2015 New Real Estate Activity [Member] | Irrigation System [Member]    
Business Acquisition [Line Items]    
Total Purchase Price   2,313,131
2015 New Real Estate Activity [Member] | Irrigation System [Member] | Espinosa Road [Member]    
Business Acquisition [Line Items]    
Total Purchase Price   497,401
2015 New Real Estate Activity [Member] | Irrigation System [Member] | Parrish Road [Member]    
Business Acquisition [Line Items]    
Total Purchase Price   1,299,851
2015 New Real Estate Activity [Member] | Irrigation System [Member] | Immokalee Exchange [Member]    
Business Acquisition [Line Items]    
Total Purchase Price   515,879
2015 New Real Estate Activity [Member] | In-place Leases [Member]    
Business Acquisition [Line Items]    
Total Purchase Price   530,283
2015 New Real Estate Activity [Member] | In-place Leases [Member] | Espinosa Road [Member]    
Business Acquisition [Line Items]    
Total Purchase Price   246,472
2015 New Real Estate Activity [Member] | In-place Leases [Member] | Parrish Road [Member]    
Business Acquisition [Line Items]    
Total Purchase Price   54,405
2015 New Real Estate Activity [Member] | In-place Leases [Member] | Immokalee Exchange [Member]    
Business Acquisition [Line Items]    
Total Purchase Price   229,406
2015 New Real Estate Activity [Member] | Leasing Costs [Member]    
Business Acquisition [Line Items]    
Total Purchase Price   270,034
2015 New Real Estate Activity [Member] | Leasing Costs [Member] | Espinosa Road [Member]    
Business Acquisition [Line Items]    
Total Purchase Price   43,894
2015 New Real Estate Activity [Member] | Leasing Costs [Member] | Parrish Road [Member]    
Business Acquisition [Line Items]    
Total Purchase Price   77,449
2015 New Real Estate Activity [Member] | Leasing Costs [Member] | Immokalee Exchange [Member]    
Business Acquisition [Line Items]    
Total Purchase Price   148,691
2015 New Real Estate Activity [Member] | Customer Relationships [Member]    
Business Acquisition [Line Items]    
Total Purchase Price   396,458
2015 New Real Estate Activity [Member] | Customer Relationships [Member] | Espinosa Road [Member]    
Business Acquisition [Line Items]    
Total Purchase Price   180,789
2015 New Real Estate Activity [Member] | Customer Relationships [Member] | Parrish Road [Member]    
Business Acquisition [Line Items]    
Total Purchase Price   35,892
2015 New Real Estate Activity [Member] | Customer Relationships [Member] | Immokalee Exchange [Member]    
Business Acquisition [Line Items]    
Total Purchase Price   179,777
2016 New Real Estate Activity [Member]    
Business Acquisition [Line Items]    
Total Purchase Price $ 41,205,815  
2016 New Real Estate Activity [Member] | Gunbarrel Road [Member]    
Business Acquisition [Line Items]    
Total Purchase Price 25,735,815  
2016 New Real Estate Activity [Member] | Calaveras Avenue [Member]    
Business Acquisition [Line Items]    
Total Purchase Price 15,470,000  
2016 New Real Estate Activity [Member] | Irrigation System [Member]    
Business Acquisition [Line Items]    
Total Purchase Price 3,254,850  
2016 New Real Estate Activity [Member] | Irrigation System [Member] | Gunbarrel Road [Member]    
Business Acquisition [Line Items]    
Total Purchase Price 2,830,738  
2016 New Real Estate Activity [Member] | Irrigation System [Member] | Calaveras Avenue [Member]    
Business Acquisition [Line Items]    
Total Purchase Price 424,112  
2016 New Real Estate Activity [Member] | In-place Leases [Member]    
Business Acquisition [Line Items]    
Total Purchase Price 381,977  
2016 New Real Estate Activity [Member] | In-place Leases [Member] | Gunbarrel Road [Member]    
Business Acquisition [Line Items]    
Total Purchase Price 381,977  
2016 New Real Estate Activity [Member] | In-place Leases [Member] | Calaveras Avenue [Member]    
Business Acquisition [Line Items]    
Total Purchase Price 0  
2016 New Real Estate Activity [Member] | Leasing Costs [Member]    
Business Acquisition [Line Items]    
Total Purchase Price 249,893  
2016 New Real Estate Activity [Member] | Leasing Costs [Member] | Gunbarrel Road [Member]    
Business Acquisition [Line Items]    
Total Purchase Price 249,893  
2016 New Real Estate Activity [Member] | Leasing Costs [Member] | Calaveras Avenue [Member]    
Business Acquisition [Line Items]    
Total Purchase Price 0  
2016 New Real Estate Activity [Member] | Other Improvements [Member]    
Business Acquisition [Line Items]    
Total Purchase Price 2,079,102  
2016 New Real Estate Activity [Member] | Other Improvements [Member] | Gunbarrel Road [Member]    
Business Acquisition [Line Items]    
Total Purchase Price 2,079,102  
2016 New Real Estate Activity [Member] | Other Improvements [Member] | Calaveras Avenue [Member]    
Business Acquisition [Line Items]    
Total Purchase Price 0  
2016 New Real Estate Activity [Member] | Horticulture [Member]    
Business Acquisition [Line Items]    
Total Purchase Price 11,430,452  
2016 New Real Estate Activity [Member] | Horticulture [Member] | Gunbarrel Road [Member]    
Business Acquisition [Line Items]    
Total Purchase Price 0  
2016 New Real Estate Activity [Member] | Horticulture [Member] | Calaveras Avenue [Member]    
Business Acquisition [Line Items]    
Total Purchase Price 11,430,452  
Land and Land Improvements [Member] | 2015 New Real Estate Activity [Member]    
Business Acquisition [Line Items]    
Total Purchase Price   32,666,370
Land and Land Improvements [Member] | 2015 New Real Estate Activity [Member] | Espinosa Road [Member]    
Business Acquisition [Line Items]    
Total Purchase Price   15,852,466
Land and Land Improvements [Member] | 2015 New Real Estate Activity [Member] | Parrish Road [Member]    
Business Acquisition [Line Items]    
Total Purchase Price   2,403,064
Land and Land Improvements [Member] | 2015 New Real Estate Activity [Member] | Immokalee Exchange [Member]    
Business Acquisition [Line Items]    
Total Purchase Price   14,410,840
Land and Land Improvements [Member] | 2016 New Real Estate Activity [Member]    
Business Acquisition [Line Items]    
Total Purchase Price 20,371,250  
Land and Land Improvements [Member] | 2016 New Real Estate Activity [Member] | Gunbarrel Road [Member]    
Business Acquisition [Line Items]    
Total Purchase Price 16,755,814  
Land and Land Improvements [Member] | 2016 New Real Estate Activity [Member] | Calaveras Avenue [Member]    
Business Acquisition [Line Items]    
Total Purchase Price 3,615,436  
Buildings [Member] | 2015 New Real Estate Activity [Member]    
Business Acquisition [Line Items]    
Total Purchase Price   400,204
Buildings [Member] | 2015 New Real Estate Activity [Member] | Espinosa Road [Member]    
Business Acquisition [Line Items]    
Total Purchase Price   84,478
Buildings [Member] | 2015 New Real Estate Activity [Member] | Parrish Road [Member]    
Business Acquisition [Line Items]    
Total Purchase Price   42,619
Buildings [Member] | 2015 New Real Estate Activity [Member] | Immokalee Exchange [Member]    
Business Acquisition [Line Items]    
Total Purchase Price   $ 273,107
Buildings [Member] | 2016 New Real Estate Activity [Member]    
Business Acquisition [Line Items]    
Total Purchase Price 3,438,291  
Buildings [Member] | 2016 New Real Estate Activity [Member] | Gunbarrel Road [Member]    
Business Acquisition [Line Items]    
Total Purchase Price 3,438,291  
Buildings [Member] | 2016 New Real Estate Activity [Member] | Calaveras Avenue [Member]    
Business Acquisition [Line Items]    
Total Purchase Price $ 0