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Intangible Assets Level 4 - Indefinite-Lived Intangible Assets (Details) (USD $)
In Millions, unless otherwise specified
9 Months Ended 12 Months Ended
Jun. 30, 2012
Sep. 30, 2011
Indefinite-lived Intangible Assets [Line Items]    
Indefinite-Lived Trade Names $ 2.1 $ 2.1
Indefinite-lived Intangible Assets, Impairment Losses 0 0
Gross Finite and Indefinite-Lived Intangible Assets 18.1 17.4
Finite and Indefinited-Lived Accumulated Amortization and Impairment Charges (5.6) (3.8)
Intangible Assets, Net (Excluding Goodwill) $ 12.5 $ 13.6