Trade and Finance Receivables - Finance Receivables (Details) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014	Sep. 30, 2014
Grower Receivables
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross receivable	$ 32,402	$ 36,089	$ 39,724
Reserve	(31,775)	(32,074)	(32,653)
Net receivable	627	4,015	7,071
Current portion, net	627	4,015	7,071
Long-term portion, net	0	0	0
Seller Financing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross receivable	22,390	25,629	24,401
Reserve	0	0	0
Net receivable	22,390	25,629	24,401
Current portion, net	5,025	4,740	4,229
Long-term portion, net	$ 17,365	$ 20,889	$ 20,172