Quarterly report pursuant to Section 13 or 15(d)

Long-Term Debt and Lines of Credit - Silver Nip Citrus Debt (Details)

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Long-Term Debt and Lines of Credit - Silver Nip Citrus Debt (Details)
3 Months Ended
Dec. 03, 2014
USD ($)
Sep. 04, 2014
USD ($)
a
loan
Dec. 31, 2017
USD ($)
loan
Sep. 30, 2017
USD ($)
Dec. 01, 2016
USD ($)
Feb. 28, 2015
USD ($)
Feb. 15, 2015
USD ($)
Debt Instrument [Line Items]              
Interest rate term loans     $ 185,358,000 $ 186,476,000      
Fixed Interest Rate Term Loans              
Debt Instrument [Line Items]              
Interest rate term loans $ 125,000,000   $ 99,062,000 $ 99,062,000      
Fixed interest rate (as a percentage) 4.15%            
Quarterly principal payments $ 2,281,250            
Prepayment amount of the fixed term loan $ 8,750,000            
Silver Nip Citrus              
Debt Instrument [Line Items]              
Number of fixed rate term loans | loan   2          
Silver Nip Citrus | Citrus Grove              
Debt Instrument [Line Items]              
Area of land acquired (in acres) | a   1,500          
Silver Nip Citrus | Fixed Interest Rate Term Loans              
Debt Instrument [Line Items]              
Number of fixed rate term loans | loan     2        
Interest rate term loans     $ 27,550,000        
Fixed interest rate (as a percentage)     5.35%        
Quarterly principal payments     $ 290,000        
Prepayment amount of the fixed term loan     $ 5,000,000        
Amount of prepayment             $ 750,000
Silver Nip Citrus | Fixed Interest Rate Term Loans | Prudential              
Debt Instrument [Line Items]              
Interest rate term loans   $ 5,500,000          
Quarterly principal payments   $ 55,000          
Silver Nip Citrus | Fixed Rate Term Loan1              
Debt Instrument [Line Items]              
Fixed interest rate (as a percentage)   3.85%          
Silver Nip Citrus | Fixed Rate Term Loan 2              
Debt Instrument [Line Items]              
Fixed interest rate (as a percentage)   3.45%          
Loans Payable | Silver Nip Citrus              
Debt Instrument [Line Items]              
Interest rate term loans           $ 7,000,000  
Limited guaranty and security agreement         $ 8,000,000 $ 7,000,000  
Maximum | Silver Nip Citrus              
Debt Instrument [Line Items]              
Covenant ratio     1.50        
Minimum | Silver Nip Citrus              
Debt Instrument [Line Items]              
Covenant ratio     1.00