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Other Intangible Assets (Schedule of Other Intangible Assets) (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Details of other intangible assets    
Gross Value $ 124.9 $ 114.7
Accumulated Amortization 28.3 21.9
Net Value 96.6 92.8
Indefinite-lived tradenames    
Details of other intangible assets    
Indefinite-lived intangible assets $ 22.4 18.7
Customer relationships    
Details of other intangible assets    
Weighted Average Useful Life (Years) 11 years 1 month 6 days  
Finite-lived intangible assets, Gross Value $ 75.5 76.0
Accumulated Amortization 23.7 18.5
Net, Finite-lived intangible assets $ 51.8 57.5
Technology    
Details of other intangible assets    
Weighted Average Useful Life (Years) 18 years 7 months 6 days  
Finite-lived intangible assets, Gross Value $ 23.0 15.9
Accumulated Amortization 1.8 0.9
Net, Finite-lived intangible assets $ 21.2 15.0
Other    
Details of other intangible assets    
Weighted Average Useful Life (Years) 8 years 2 months 12 days  
Finite-lived intangible assets, Gross Value $ 4.0 4.1
Accumulated Amortization 2.8 2.5
Net, Finite-lived intangible assets $ 1.2 $ 1.6