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Borrowing Arrangements (Components Of Long-Term Debt) (Details) - USD ($)
$ in Millions
Dec. 31, 2015
Sep. 30, 2015
Debt instrument $ 495.2 $ 496.4
Deferred financing costs (7.2) (7.4)
Current portion of long-term debt (6.0) (6.1)
Long-term debt 482.0 482.9
Domestic Line of Credit [Member]    
Debt instrument 0.0 0.0
Secured Debt [Member]    
Debt instrument 492.9 494.0
Other [Member]    
Debt instrument $ 2.3 $ 2.4