Quarterly report pursuant to Section 13 or 15(d)

Related Party Transactions - Silver Nip Citrus Merger Agreement (Details)

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Related Party Transactions - Silver Nip Citrus Merger Agreement (Details) - USD ($)
$ / shares in Units, $ in Thousands
12 Months Ended
Feb. 28, 2015
Sep. 30, 2016
Dec. 31, 2016
Dec. 31, 2015
Feb. 27, 2015
Related Party Transaction [Line Items]          
Ownership interest (as a percent)     51.00% 51.00%  
Common stock, par value per share (in dollars per share) $ 1.00 $ 1.00 $ 1    
Closing price of common stock (in dollars per share)         $ 45.67
Merger Agreement          
Related Party Transaction [Line Items]          
Shares of common stock issued (in shares) 923,257 148,705      
Outstanding net indebtedness $ 40,278        
Other liabilities 8,446        
Book value of assets 65,739        
Total net assets $ 17,015        
734 Agriculture | Silver Nip Citrus          
Related Party Transaction [Line Items]          
Ownership interest (as a percent) 74.89%        
Mr. Clay Wilson | Silver Nip Citrus          
Related Party Transaction [Line Items]          
Ownership interest (as a percent) 5.00%        
Entity Controlled by Mr. Clay Wilson | Silver Nip Citrus          
Related Party Transaction [Line Items]          
Ownership interest (as a percent) 20.11%