Finance Receivables Allowance (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended		3 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012 Grower receivables [Member]	Jun. 30, 2012 Grower receivables [Member]	Mar. 31, 2012 Grower receivables [Member]	Sep. 30, 2011 Grower receivables [Member]	Jun. 30, 2011 Grower receivables [Member]	Mar. 31, 2011 Grower receivables [Member]
Valuation Allowance [Line Items]
Reserve at beginning of period			$ 37,240	$ 37,710	$ 37,519	$ 37,900	$ 4,796	$ 4,552
Charged to costs and expenses	704	33,372	277	45	382	20	33,106	246
Recoveries			(680)	(516)	(191)	0	0	0
Foreign exchange and other			0	1	0	3	(2)	(2)
Reserve at end of period			$ 36,837	$ 37,240	$ 37,710	$ 37,923	$ 37,900	$ 4,796