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Borrowing Arrangements (Components Of Long-Term Debt) (Details) - USD ($)
$ in Millions
Mar. 31, 2016
Sep. 30, 2015
Debt instrument $ 486.9 $ 489.0
Deferred financing costs (6.9) (7.4)
Current portion of long-term debt (5.9) (6.1)
Long-term debt 481.0 482.9
Domestic Line of Credit [Member]    
Debt instrument 0.0 0.0
Secured Debt [Member]    
Debt instrument 491.7 494.0
Other [Member]    
Debt instrument $ 2.1 $ 2.4