Acquisitions (Tables)

12 Months Ended

Sep. 30, 2011

Acquisitions [Abstract]

Acquired identifiable intangible assets of these acquisitions

	2011			2009
			Wtd. Avg.			Wtd. Avg.
	Fair		Useful	Fair		Useful
(in millions, except useful lives)	Value		Life	Value		Life
Customer relationships	$	14.3	14 years	$	6.3	10 years
Technology		1.5	10 years		1.2	8 years
Trademarks		1.3	2 years		—		—
Other intangible assets		0.6	4 years		1.3	4 years