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Goodwill Additions to Goodwill (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Sep. 30, 2012	Sep. 30, 2011
Goodwill [Abstract]
Goodwill, Acquired During Period	$ 1.1	$ 2.2

- Definition

The aggregate amount of goodwill acquired in the period and allocated to the reportable segment. The value is stated at fair value based on the purchase price allocation.

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