Annual report pursuant to Section 13 and 15(d)

Investment Income and Other (Details)

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Investment Income and Other (Details) (USD $)
In Millions
12 Months Ended
Sep. 30, 2011
Sep. 30, 2010
Sep. 30, 2009
Investment Income and Other      
Interest income on Forethought Note $ 6.4 $ 12.0 $ 12.4
Interest income on auction rate securities (ARS)   0.2 0.9
Equity in net income (loss) of affiliates 5.4 3.1 (5.4)
Realized gain(loss) on sale on investments   0.7  
Net realized gain (loss) on sale or impairment of ARS 0.5 (3.1)  
Foreign currency exchange gain (loss) (0.5)   0.2
Other, net (1.6) (0.2) (0.2)
Investment income and other $ 10.2 $ 12.7 $ 7.9