Trade and Finance Receivables - Finance Receivables (Details) (USD $)	3 Months Ended
	Sep. 30, 2013	Sep. 30, 2014	Dec. 31, 2013
Grower Receivables
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Allowance for Credit Losses, Recovery	$ 1,000,000
Gross receivable	36,092,000	39,724,000	35,761,000
Reserve	(32,927,000)	(32,653,000)	(32,877,000)
Net receivable	3,165,000	7,071,000	2,884,000
Current portion, net	3,165,000	7,071,000	2,884,000
Long-term portion, net	0	0	0
Seller Financing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross receivable	28,001,000	24,401,000	27,127,000
Reserve	0	0	0
Net receivable	28,001,000	24,401,000	27,127,000
Current portion, net	3,913,000	4,229,000	3,990,000
Long-term portion, net	$ 24,088,000	$ 20,172,000	$ 23,137,000