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Financing Arrangements (Schedule of Long-term Debt) (Details) - USD ($)
$ in Millions
Sep. 30, 2016
Dec. 31, 2015
Debt Instrument [Line Items]    
Less current maturities $ (20.5) $ (17.8)
Unamortized debt issuance costs (3.9) (4.5)
Total long-term debt, net of current portion $ 428.1 445.8
Other Noncurrent Assets | Scenario, Previously Reported    
Debt Instrument [Line Items]    
Debt issuance costs, net   4.5
Revolving credit    
Debt Instrument [Line Items]    
Interest rate at end of period 2.56%  
Total debt $ 151.6 169.0
Term Loan    
Debt Instrument [Line Items]    
Interest rate at end of period 2.69%  
Total debt $ 24.5 27.9
8.125% senior notes due 2021    
Debt Instrument [Line Items]    
Stated interest rate 8.125%  
Total debt $ 250.0 250.0
Other    
Debt Instrument [Line Items]    
Total debt $ 26.4 $ 21.2