Quarterly report pursuant to Section 13 or 15(d)

Borrowings - Summary of Mortgage Note Payable and Line of Credit Additional Information (Detail)

v3.8.0.1
Borrowings - Summary of Mortgage Note Payable and Line of Credit Additional Information (Detail)
1 Months Ended 3 Months Ended 9 Months Ended
Sep. 08, 2017
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Aug. 09, 2017
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Jul. 17, 2017
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Jul. 13, 2017
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Jun. 14, 2017
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May 31, 2017
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debt_instrument
Apr. 30, 2017
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Feb. 28, 2017
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Jan. 31, 2017
Mar. 31, 2016
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Sep. 30, 2017
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property
Mar. 31, 2017
Sep. 30, 2016
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Sep. 30, 2017
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debt_instrument
property
Sep. 30, 2016
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Sep. 19, 2017
Jan. 12, 2017
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Jun. 16, 2016
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Dec. 05, 2014
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Debt Instrument [Line Items]                                      
Other income                     $ 4,000   $ 2,000 $ 190,000 $ 106,000        
New MetLife Facility                                      
Debt Instrument [Line Items]                                      
Principal Outstanding                     $ 136,310,000     $ 136,310,000          
Commitment fee (as percent)                     0.20%     0.20%          
Long-term debt, additional amount available                     $ 12,900,000     $ 12,900,000          
Minimum annualized rate (as percent)                           2.50%          
Farm Credit Notes Payable                                      
Debt Instrument [Line Items]                                      
Number of Loans Outstanding | debt_instrument                     14     14          
Principal Outstanding                     $ 61,107,000     $ 61,107,000          
Reduced stated interest rate (as percent)                           17.20%          
Reduction in basis points (as percent)                           0.61%          
Farm Credit CFL                                      
Debt Instrument [Line Items]                                      
Aggregate Commitment       $ 5,472,000                              
Debt term       28 years 4 months 14 days                              
Number of Loans Outstanding | debt_instrument                     8     8          
Principal Outstanding                     $ 27,472,000     $ 27,472,000          
Interest rate (as percent)                     4.15%     4.15%          
Interest rate (as percent)       4.47%                              
Number of loans with amended agreements | debt_instrument                     4                
Other income             $ 124,000     $ 94,000                  
Reduced stated interest rate (as percent)                       15.80%              
Reduction in basis points (as percent)                     0.55%                
Farm Credit West                                      
Debt Instrument [Line Items]                                      
Aggregate Commitment     $ 8,162,000                                
Debt term     20 years                                
Number of Loans Outstanding | debt_instrument                     3     3          
Principal Outstanding                     $ 21,054,000     $ 21,054,000          
Interest rate (as percent)                     3.91%     3.91%          
Interest rate (as percent)     4.31%                                
Other income               $ 59,000         $ 0            
Reduced stated interest rate (as percent)                 21.30%                    
Reduction in basis points (as percent)                       0.76%              
CF Farm Credit                                      
Debt Instrument [Line Items]                                      
Aggregate Commitment         $ 1,301,000                            
Debt term         40 years 2 months                            
Number of Loans Outstanding | debt_instrument                     1     1          
Principal Outstanding                     $ 1,301,000     $ 1,301,000          
Interest rate (as percent)                     4.41%     4.41%          
Farm Credit FL                                      
Debt Instrument [Line Items]                                      
Aggregate Commitment   $ 5,820,000                                  
Debt term   19 years 6 months                                  
Number of Loans Outstanding | debt_instrument                     1     1          
Principal Outstanding                     $ 5,820,000     $ 5,820,000          
Interest rate (as percent)                     4.70%     4.70%          
NW Farm Credit                                      
Debt Instrument [Line Items]                                      
Aggregate Commitment $ 5,460,000                                    
Debt term 39 years 7 months 6 days                                    
Number of Loans Outstanding | debt_instrument                     1     1          
Principal Outstanding                     $ 5,460,000     $ 5,460,000          
Interest rate (as percent)                     4.41%     4.41%          
Farmer Mac Bonds Payable                                      
Debt Instrument [Line Items]                                      
Aggregate Commitment                     $ 125,000,000     $ 125,000,000       $ 125,000,000 $ 75,000,000
Number of Loans Outstanding | debt_instrument                     14     14          
Principal Outstanding                     $ 84,519,000     $ 84,519,000          
Interest rate (as percent)                     3.13%     3.13%          
Undrawn Commitment                     $ 39,118,000     $ 39,118,000          
Long-term debt, additional amount available                     $ 0     $ 0          
Properties pledged as collateral | property                     0     0          
Farmer Mac Bonds Payable, 2017 Issuances                                      
Debt Instrument [Line Items]                                      
Aggregate Commitment                                 $ 35,625,000    
Number of Loans Outstanding | debt_instrument                     5     5          
Farmer Mac Bonds Payable, 2017 Issuances | Minimum                                      
Debt Instrument [Line Items]                                      
Interest rate (as percent)                                 2.80%    
Farmer Mac Bonds Payable, 2017 Issuances | Maximum                                      
Debt Instrument [Line Items]                                      
Interest rate (as percent)                                 4.05%    
Notes payable to bank | Metlife Term Loans                                      
Debt Instrument [Line Items]                                      
Aggregate Commitment           $ 15,300,000                          
Debt term           28 years 7 months                          
Number of Loans Outstanding | debt_instrument           2                          
Interest rate (as percent)                               3.85%      
Notes payable to bank | Metlife Term Loans | Minimum                                      
Debt Instrument [Line Items]                                      
Interest rate (as percent)           3.55%                          
Notes payable to bank | Metlife Term Loans | Maximum                                      
Debt Instrument [Line Items]                                      
Interest rate (as percent)           3.85%                          
Notes payable to bank | New MetLife Facility                                      
Debt Instrument [Line Items]                                      
Aggregate Commitment                     $ 150,000,000     $ 150,000,000          
Principal Outstanding                     $ 131,210,000     $ 131,210,000          
Interest rate (as percent)                     3.30%     3.30%          
Undrawn Commitment                     $ 13,530,000     $ 13,530,000          
Amortizing principal payments                     5,300,000     5,300,000          
Notes payable to bank | CF Farm Credit                                      
Debt Instrument [Line Items]                                      
Interest rate (as percent)         4.41%                            
Notes payable to bank | Farm Credit FL                                      
Debt Instrument [Line Items]                                      
Interest rate (as percent)   4.70%                                  
Notes payable to bank | NW Farm Credit                                      
Debt Instrument [Line Items]                                      
Interest rate (as percent) 4.41%                                    
MetLife Lines of Credit | New MetLife Facility                                      
Debt Instrument [Line Items]                                      
Aggregate Commitment                     50,000,000     50,000,000          
Principal Outstanding                     5,100,000     5,100,000          
Undrawn Commitment                     $ 44,900,000     $ 44,900,000          
Effective interest rate (as percent)                     3.55%     3.55%          
MetLife Lines of Credit | New MetLife Facility | LIBOR                                      
Debt Instrument [Line Items]                                      
Percentage added to LIBOR (as percent)                           2.25%