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Debt - Schedule of Debt and Capital Lease Obligations (Details) - USD ($)
$ in Millions
Jun. 30, 2015
Dec. 31, 2014
Debt Instrument [Line Items]    
Short-term borrowings   $ 1.3
Long-term debt $ 508.0 415.0
Total debt 508.0 416.3
Working capital line of credit - China    
Debt Instrument [Line Items]    
Short-term borrowings   1.3
Senior unsecured credit facility | Revolving loan    
Debt Instrument [Line Items]    
Long-term debt $ 508.0 $ 415.0