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Borrowing Arrangements (Components Of Long-Term Debt) (Details) - USD ($)
$ in Millions
Sep. 30, 2016
Sep. 30, 2015
Debt $ 491.4 $ 496.4
Deferred Finance Costs, Net (8.1)  
Current portion of long-term debt (5.9) (6.1)
Long-term debt, excluding current maturities 479.2 482.9
Revolving Credit Facility [Member]    
Debt 0.0 0.0
Deferred Finance Costs, Net (1.8)  
Secured Debt [Member]    
Debt 489.4 494.0
Deferred Finance Costs, Net (6.3) (7.4)
Other [Member]    
Debt $ 2.0 $ 2.4