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)

v3.5.0.2
Real Estate and Intangible Assets - Fair Value of Assets Acquired and Liabilities Assumed Related to Property Acquired (Detail) - USD ($)
Sep. 30, 2016
Sep. 30, 2015
Business Acquisition [Line Items]    
Total Purchase Price $ (583,336)  
2015 New Real Estate Activity [Member]    
Business Acquisition [Line Items]    
Total Purchase Price   $ 66,506,980
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] | Holt County [Member]    
Business Acquisition [Line Items]    
Total Purchase Price   5,504,000
2015 New Real Estate Activity [Member] | Rock County [Member]    
Business Acquisition [Line Items]    
Total Purchase Price   5,504,000
2015 New Real Estate Activity [Member] | Bear Mountain [Member]    
Business Acquisition [Line Items]    
Total Purchase Price   18,922,500
2015 New Real Estate Activity [Member] | Irrigation System [Member]    
Business Acquisition [Line Items]    
Total Purchase Price   4,077,857
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] | Irrigation System [Member] | Holt County [Member]    
Business Acquisition [Line Items]    
Total Purchase Price   729,884
2015 New Real Estate Activity [Member] | Irrigation System [Member] | Rock County [Member]    
Business Acquisition [Line Items]    
Total Purchase Price   540,589
2015 New Real Estate Activity [Member] | Irrigation System [Member] | Bear Mountain [Member]    
Business Acquisition [Line Items]    
Total Purchase Price   494,253
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] | In-place Leases [Member] | Holt County [Member]    
Business Acquisition [Line Items]    
Total Purchase Price   0
2015 New Real Estate Activity [Member] | In-place Leases [Member] | Rock County [Member]    
Business Acquisition [Line Items]    
Total Purchase Price   0
2015 New Real Estate Activity [Member] | In-place Leases [Member] | Bear Mountain [Member]    
Business Acquisition [Line Items]    
Total Purchase Price   0
2015 New Real Estate Activity [Member] | Leasing Costs [Member]    
Business Acquisition [Line Items]    
Total Purchase Price   326,394
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] | Leasing Costs [Member] | Holt County [Member]    
Business Acquisition [Line Items]    
Total Purchase Price   27,494
2015 New Real Estate Activity [Member] | Leasing Costs [Member] | Rock County [Member]    
Business Acquisition [Line Items]    
Total Purchase Price   28,866
2015 New Real Estate Activity [Member] | Leasing Costs [Member] | Bear Mountain [Member]    
Business Acquisition [Line Items]    
Total Purchase Price   0
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
2015 New Real Estate Activity [Member] | Customer Relationships [Member] | Holt County [Member]    
Business Acquisition [Line Items]    
Total Purchase Price   0
2015 New Real Estate Activity [Member] | Customer Relationships [Member] | Rock County [Member]    
Business Acquisition [Line Items]    
Total Purchase Price   0
2015 New Real Estate Activity [Member] | Customer Relationships [Member] | Bear Mountain [Member]    
Business Acquisition [Line Items]    
Total Purchase Price   0
2016 New Real Estate Activity [Member]    
Business Acquisition [Line Items]    
Total Purchase Price 81,557,106  
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] | Orange Avenue [Member]    
Business Acquisition [Line Items]    
Total Purchase Price 5,100,000  
2016 New Real Estate Activity [Member] | Lithia Road [Member]    
Business Acquisition [Line Items]    
Total Purchase Price 1,700,000  
2016 New Real Estate Activity [Member] | Baca County [Member]    
Business Acquisition [Line Items]    
Total Purchase Price 6,322,853  
2016 New Real Estate Activity [Member] | Diego Ranch [Member]    
Business Acquisition [Line Items]    
Total Purchase Price 13,996,606  
2016 New Real Estate Activity [Member] | Nevada Ranch [Member]    
Business Acquisition [Line Items]    
Total Purchase Price 13,231,832  
2016 New Real Estate Activity [Member] | Irrigation System [Member]    
Business Acquisition [Line Items]    
Total Purchase Price 4,953,388  
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] | Irrigation System [Member] | Orange Avenue [Member]    
Business Acquisition [Line Items]    
Total Purchase Price 934,482  
2016 New Real Estate Activity [Member] | Irrigation System [Member] | Lithia Road [Member]    
Business Acquisition [Line Items]    
Total Purchase Price 213,325  
2016 New Real Estate Activity [Member] | Irrigation System [Member] | Baca County [Member]    
Business Acquisition [Line Items]    
Total Purchase Price 0  
2016 New Real Estate Activity [Member] | Irrigation System [Member] | Diego Ranch [Member]    
Business Acquisition [Line Items]    
Total Purchase Price 45,535  
2016 New Real Estate Activity [Member] | Irrigation System [Member] | Nevada Ranch [Member]    
Business Acquisition [Line Items]    
Total Purchase Price 505,196  
2016 New Real Estate Activity [Member] | In-place Leases [Member]    
Business Acquisition [Line Items]    
Total Purchase Price 501,527  
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] | In-place Leases [Member] | Orange Avenue [Member]    
Business Acquisition [Line Items]    
Total Purchase Price 0  
2016 New Real Estate Activity [Member] | In-place Leases [Member] | Lithia Road [Member]    
Business Acquisition [Line Items]    
Total Purchase Price 7,739  
2016 New Real Estate Activity [Member] | In-place Leases [Member] | Baca County [Member]    
Business Acquisition [Line Items]    
Total Purchase Price 0  
2016 New Real Estate Activity [Member] | In-place Leases [Member] | Diego Ranch [Member]    
Business Acquisition [Line Items]    
Total Purchase Price 58,535  
2016 New Real Estate Activity [Member] | In-place Leases [Member] | Nevada Ranch [Member]    
Business Acquisition [Line Items]    
Total Purchase Price 53,276  
2016 New Real Estate Activity [Member] | Leasing Costs [Member]    
Business Acquisition [Line Items]    
Total Purchase Price 406,390  
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] | Leasing Costs [Member] | Orange Avenue [Member]    
Business Acquisition [Line Items]    
Total Purchase Price 0  
2016 New Real Estate Activity [Member] | Leasing Costs [Member] | Lithia Road [Member]    
Business Acquisition [Line Items]    
Total Purchase Price 16,265  
2016 New Real Estate Activity [Member] | Leasing Costs [Member] | Baca County [Member]    
Business Acquisition [Line Items]    
Total Purchase Price 0  
2016 New Real Estate Activity [Member] | Leasing Costs [Member] | Diego Ranch [Member]    
Business Acquisition [Line Items]    
Total Purchase Price 73,337  
2016 New Real Estate Activity [Member] | Leasing Costs [Member] | Nevada Ranch [Member]    
Business Acquisition [Line Items]    
Total Purchase Price 66,895  
2016 New Real Estate Activity [Member] | Above (Below) Market Lease [Member] | Gunbarrel Road [Member]    
Business Acquisition [Line Items]    
Total Purchase Price 0  
2016 New Real Estate Activity [Member] | Above (Below) Market Lease [Member] | Orange Avenue [Member]    
Business Acquisition [Line Items]    
Total Purchase Price 0  
2016 New Real Estate Activity [Member] | Above (Below) Market Lease [Member] | Lithia Road [Member]    
Business Acquisition [Line Items]    
Total Purchase Price (9,075)  
2016 New Real Estate Activity [Member] | Above (Below) Market Lease [Member] | Baca County [Member]    
Business Acquisition [Line Items]    
Total Purchase Price 0  
2016 New Real Estate Activity [Member] | Above (Below) Market Lease [Member] | Diego Ranch [Member]    
Business Acquisition [Line Items]    
Total Purchase Price (316,936)  
2016 New Real Estate Activity [Member] | Above (Below) Market Lease [Member] | Nevada Ranch [Member]    
Business Acquisition [Line Items]    
Total Purchase Price (257,325)  
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] | Other Improvements [Member] | Orange Avenue [Member]    
Business Acquisition [Line Items]    
Total Purchase Price 0  
2016 New Real Estate Activity [Member] | Other Improvements [Member] | Lithia Road [Member]    
Business Acquisition [Line Items]    
Total Purchase Price 0  
2016 New Real Estate Activity [Member] | Other Improvements [Member] | Baca County [Member]    
Business Acquisition [Line Items]    
Total Purchase Price 0  
2016 New Real Estate Activity [Member] | Other Improvements [Member] | Diego Ranch [Member]    
Business Acquisition [Line Items]    
Total Purchase Price 0  
2016 New Real Estate Activity [Member] | Other Improvements [Member] | Nevada Ranch [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  
2016 New Real Estate Activity [Member] | Horticulture [Member] | Orange Avenue [Member]    
Business Acquisition [Line Items]    
Total Purchase Price 0  
2016 New Real Estate Activity [Member] | Horticulture [Member] | Lithia Road [Member]    
Business Acquisition [Line Items]    
Total Purchase Price 0  
2016 New Real Estate Activity [Member] | Horticulture [Member] | Baca County [Member]    
Business Acquisition [Line Items]    
Total Purchase Price 0  
2016 New Real Estate Activity [Member] | Horticulture [Member] | Diego Ranch [Member]    
Business Acquisition [Line Items]    
Total Purchase Price 0  
2016 New Real Estate Activity [Member] | Horticulture [Member] | Nevada Ranch [Member]    
Business Acquisition [Line Items]    
Total Purchase Price 0  
Land and Land Improvements [Member] | 2015 New Real Estate Activity [Member]    
Business Acquisition [Line Items]    
Total Purchase Price   60,647,299
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] | 2015 New Real Estate Activity [Member] | Holt County [Member]    
Business Acquisition [Line Items]    
Total Purchase Price   4,690,369
Land and Land Improvements [Member] | 2015 New Real Estate Activity [Member] | Rock County [Member]    
Business Acquisition [Line Items]    
Total Purchase Price   4,862,313
Land and Land Improvements [Member] | 2015 New Real Estate Activity [Member] | Bear Mountain [Member]    
Business Acquisition [Line Items]    
Total Purchase Price   18,428,247
Land and Land Improvements [Member] | 2016 New Real Estate Activity [Member]    
Business Acquisition [Line Items]    
Total Purchase Price 59,079,293  
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  
Land and Land Improvements [Member] | 2016 New Real Estate Activity [Member] | Orange Avenue [Member]    
Business Acquisition [Line Items]    
Total Purchase Price 4,135,741  
Land and Land Improvements [Member] | 2016 New Real Estate Activity [Member] | Lithia Road [Member]    
Business Acquisition [Line Items]    
Total Purchase Price 1,461,090  
Land and Land Improvements [Member] | 2016 New Real Estate Activity [Member] | Baca County [Member]    
Business Acquisition [Line Items]    
Total Purchase Price 6,111,287  
Land and Land Improvements [Member] | 2016 New Real Estate Activity [Member] | Diego Ranch [Member]    
Business Acquisition [Line Items]    
Total Purchase Price 14,136,135  
Land and Land Improvements [Member] | 2016 New Real Estate Activity [Member] | Nevada Ranch [Member]    
Business Acquisition [Line Items]    
Total Purchase Price 12,863,790  
Buildings [Member] | 2015 New Real Estate Activity [Member]    
Business Acquisition [Line Items]    
Total Purchase Price   528,689
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] | 2015 New Real Estate Activity [Member] | Holt County [Member]    
Business Acquisition [Line Items]    
Total Purchase Price   56,253
Buildings [Member] | 2015 New Real Estate Activity [Member] | Rock County [Member]    
Business Acquisition [Line Items]    
Total Purchase Price   72,232
Buildings [Member] | 2015 New Real Estate Activity [Member] | Bear Mountain [Member]    
Business Acquisition [Line Items]    
Total Purchase Price   $ 0
Buildings [Member] | 2016 New Real Estate Activity [Member]    
Business Acquisition [Line Items]    
Total Purchase Price 3,690,290  
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  
Buildings [Member] | 2016 New Real Estate Activity [Member] | Orange Avenue [Member]    
Business Acquisition [Line Items]    
Total Purchase Price 29,777  
Buildings [Member] | 2016 New Real Estate Activity [Member] | Lithia Road [Member]    
Business Acquisition [Line Items]    
Total Purchase Price 10,656  
Buildings [Member] | 2016 New Real Estate Activity [Member] | Baca County [Member]    
Business Acquisition [Line Items]    
Total Purchase Price 211,566  
Buildings [Member] | 2016 New Real Estate Activity [Member] | Diego Ranch [Member]    
Business Acquisition [Line Items]    
Total Purchase Price 0  
Buildings [Member] | 2016 New Real Estate Activity [Member] | Nevada Ranch [Member]    
Business Acquisition [Line Items]    
Total Purchase Price $ 0