SHARE-BASED COMPENSATION (Narrative) (Details) (USD $) In Millions, except Share data, unless otherwise specified		12 Months Ended				12 Months Ended
	Sep. 30, 2012 plan	Sep. 30, 2012 Stock Options [Member]	Sep. 30, 2011 Stock Options [Member]	Sep. 30, 2010 Stock Options [Member]	Feb. 08, 2007 2007 Long-Term Incentive Plan [Member]	Sep. 30, 2012 2007 Long-Term Incentive Plan [Member] Restricted Stock [Member]	Sep. 30, 2012 2001 Stock Incentive Plan [Member] plan	Feb. 08, 2007 2001 Stock Incentive Plan [Member]
Share-Based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock awards (in shares)					4,000,000		0	4,000,000
Number of stock incentive plans	2						1
Outstanding options maximum term (in years)		10 years
Number of shares available per option		1
Vesting period minimum (in years)		1				3
Vesting period maximum (in years)		4				4
Vesting and restriction period minimum (in months)						13 months
Total fair value of the shares vested		$ 2.5	$ 2.7	$ 3.0
Weighted average fair value of stock options		$ 16.90	$ 15.72	$ 14.69