Inventories (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2013
Inventory, Net [Abstract]
Finished goods	$ 69,244	$ 69,450	$ 79,706
Growing crops	73,068	74,985	79,899
Raw materials, supplies and other	66,619	66,129	75,178
Inventory, net	$ 208,931	$ 210,564	$ 234,783