INCOME TAXES (Schedule of Differences between Income Tax Expense) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Sep. 30, 2012		Sep. 30, 2011		Sep. 30, 2010
Amount
Federal income tax	$ 57.2	[1]	$ 55.9	[1]	$ 64.0	[1]
State income tax	3.5	[2]	2.4	[2]	4.8	[2]
Foreign income tax	(3.4)	[3]	(8.0)	[3]	(0.6)	[3]
International tax restructuring	(11.0)
Application of federal tax credits	(0.6)		(4.1)		(0.6)
Adjustment of estimated income tax accruals	(2.1)		2.3		(9.7)
Valuation of tax attributes	0.3		(19.5)
Other, net	(1.2)		(2.8)		(1.0)
Income tax expense	$ 42.7		$ 26.2		$ 56.9
% of Pretax Income
Federal income tax	35.00%	[1]	35.00%	[1]	35.00%	[1]
State income tax	2.20%	[2]	1.50%	[2]	2.60%	[2]
Foreign income tax	(2.10%)	[3]	(5.00%)	[3]	(0.30%)	[3]
International tax restructuring	(6.70%)
Application of federal tax credits	(0.40%)		(2.50%)		(0.30%)
Adjustment of estimated income tax accruals	(1.30%)		1.40%		(5.40%)
Valuation of tax attributes	0.20%		(12.20%)
Other, net	(0.80%)		(1.80%)		(0.50%)
Income tax expense	26.10%		16.40%		31.10%

[1] At statutory rate.

[2] Net of Federal benefit.

[3] Federal tax rate differential.