Property, Buildings and Equipment, Net (Schedule of Property, Buildings and Equipment) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Sep. 30, 2014
Property, Plant and Equipment [Line Items]
Net property, buildings and equipment	$ 337,597	$ 87,432
Depreciable Property Plant and Equipment [Member]
Property, Plant and Equipment [Line Items]
Gross property, buildings and equipment	295,236	122,534
Less accumulated depreciation and depletion	(64,473)	(63,031)
Net property, buildings and equipment	230,763	59,503
Breeding herd [Member]
Property, Plant and Equipment [Line Items]
Gross property, buildings and equipment	11,032	11,558
Buildings [Member]
Property, Plant and Equipment [Line Items]
Gross property, buildings and equipment	18,545	15,220
Citrus trees [Member]
Property, Plant and Equipment [Line Items]
Gross property, buildings and equipment	215,704	45,257
Equipment and Other Facilities [Member]
Property, Plant and Equipment [Line Items]
Gross property, buildings and equipment	49,955	50,499
Land and Land Improvements [Member]
Property, Plant and Equipment [Line Items]
Gross property, buildings and equipment	$ 106,834	$ 27,929