Finance Receivables Allowance (Details) (USD $) In Thousands, unless otherwise specified	6 Months Ended		3 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012 Growers receivables [Member]	Mar. 31, 2012 Growers receivables [Member]	Jun. 30, 2011 Growers receivables [Member]	Mar. 31, 2011 Growers receivables [Member]
Valuation Allowance [Line Items]
Reserve at beginning of period			$ 37,710	$ 37,519	$ 4,796	$ 4,552
Charged to costs and expenses	427	33,352	45	382	33,106	246
Recoveries			(516)	(191)	0	0
Write-offs			0	0	0	0
Foreign exchange and other			1	0	(2)	(2)
Reserve at end of period			$ 37,240	$ 37,710	$ 37,900	$ 4,796