COMMITMENTS AND CONTINGENCIES (Self Insurance and Legal Proceedings) (Details) (USD $)	12 Months Ended				3 Months Ended	1 Months Ended	12 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2012 Insurance-related Assessments [Member]	Sep. 30, 2011 Office of Inspector General Investigation [Member]	Sep. 30, 2011 Freedom Medical Antitrust Litigation [Member]	Sep. 30, 2010 Antitrust Settlement [Member]
Loss Contingencies [Line Items]
Litigation charge	$ 3,600,000	$ (47,300,000)	$ 21,200,000		$ (42,300,000)
Cash payment for settlement						5,000,000
Reversal of reserve into income			(21,200,000)				(21,200,000)
Deductibles and self-insured retentions, minimum				150,000
Deductibles and self-insured retentions, maximum				$ 1,500,000