Property, Buildings and Equipment, Net (Schedule of Property, Buildings and Equipment) (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Sep. 30, 2013
Property, Plant and Equipment [Line Items]
Net property, buildings and equipment	$ 123,122	$ 131,071
Breeding herd [Member]
Property, Plant and Equipment [Line Items]
Gross property, buildings and equipment	11,667	12,234
Buildings [Member]
Property, Plant and Equipment [Line Items]
Gross property, buildings and equipment	13,559	11,587
Citrus trees [Member]
Property, Plant and Equipment [Line Items]
Gross property, buildings and equipment	34,923	34,188
Sugarcane [Member]
Property, Plant and Equipment [Line Items]
Gross property, buildings and equipment		16,199
Equipment and Other Facilities [Member]
Property, Plant and Equipment [Line Items]
Gross property, buildings and equipment	44,149	47,278
Depreciable Properties [Member]
Property, Plant and Equipment [Line Items]
Gross property, buildings and equipment	104,298	121,486
Less accumulated depreciation and depletion	(62,698)	(71,857)
Net property, buildings and equipment	41,600	49,629
Land and Land Improvements [Member]
Property, Plant and Equipment [Line Items]
Gross property, buildings and equipment	$ 81,522	$ 81,442