BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Property and Equipment (Details) (USD $)	12 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2010
Property, Plant and Equipment [Line Items]
Impairment of Project Horizon	$ 4,981,000	$ 0	$ 0	$ 58,100,000
Impairment of property and equipment		$ 0
Buildings and land improvements
Property, Plant and Equipment [Line Items]
Estimated useful life	40 years
Furniture and equipment | Minimum
Property, Plant and Equipment [Line Items]
Estimated useful life	3 years
Furniture and equipment | Maximum
Property, Plant and Equipment [Line Items]
Estimated useful life	7 years