Property, Buildings and Equipment, Net (Schedule of Property, Buildings and Equipment) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Sep. 30, 2013
Property, Plant and Equipment [Line Items]
Net property, buildings and equipment	$ 131,468	$ 131,071
Depreciable Assets [Member]
Property, Plant and Equipment [Line Items]
Gross property, buildings and equipment	125,155	121,486
Less accumulated depreciation and depletion	(71,965)	(71,857)
Net property, buildings and equipment	53,190	49,629
Breeding herd [Member]
Property, Plant and Equipment [Line Items]
Gross property, buildings and equipment	12,844	12,234
Buildings [Member]
Property, Plant and Equipment [Line Items]
Gross property, buildings and equipment	12,994	11,587
Citrus trees [Member]
Property, Plant and Equipment [Line Items]
Gross property, buildings and equipment	31,724	34,188
Sugarcane [Member]
Property, Plant and Equipment [Line Items]
Gross property, buildings and equipment	18,788	16,199
Equipment and Other Facilities [Member]
Property, Plant and Equipment [Line Items]
Gross property, buildings and equipment	48,805	47,278
Land and Land Improvements [Member]
Property, Plant and Equipment [Line Items]
Gross property, buildings and equipment	$ 78,278	$ 81,442