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Other Charges, Net - Components (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Other Charges, Net    
Information technology transformation costs $ 1.2 $ 2.2
Restructuring charges 1.5 1.8
Acquisition-related charges (benefits) 0.4  
Other charges, net $ 3.1 $ 4.0