Property, Buildings and Equipment, Net (Schedule of Property, Buildings and Equipment) (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013
Property, Plant and Equipment [Line Items]
Net property, buildings and equipment	$ 87,432	$ 131,071
Depreciable Property Plant and Equipment [Member]
Property, Plant and Equipment [Line Items]
Gross property, buildings and equipment	122,534	121,486
Less accumulated depreciation and depletion	(63,031)	(71,857)
Net property, buildings and equipment	59,503	49,629
Breeding herd [Member]
Property, Plant and Equipment [Line Items]
Gross property, buildings and equipment	11,558	12,234
Buildings [Member]
Property, Plant and Equipment [Line Items]
Gross property, buildings and equipment	15,220	11,587
Citrus trees [Member]
Property, Plant and Equipment [Line Items]
Gross property, buildings and equipment	45,257	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	50,499	47,278
Land and Land Improvements [Member]
Property, Plant and Equipment [Line Items]
Gross property, buildings and equipment	$ 27,929	$ 81,442