Components of Property, Plant and Equipment (Details) - USD ($) $ in Millions	Sep. 30, 2017	Dec. 31, 2016
Property, Plant and Equipment [Line Items]
Gross PP&E	$ 1,225.4	$ 1,165.3
Less accumulated depreciation and amortization	623.6	576.7
Net PP&E	601.8	588.6
Land
Property, Plant and Equipment [Line Items]
Gross PP&E	28.0	25.1
Building and Building Improvements
Property, Plant and Equipment [Line Items]
Gross PP&E	298.2	284.7
Machinery and Equipment
Property, Plant and Equipment [Line Items]
Gross PP&E	710.3	680.1
Software
Property, Plant and Equipment [Line Items]
Gross PP&E	92.5	90.4
Office equipment and other assets
Property, Plant and Equipment [Line Items]
Gross PP&E	65.6	60.8
Construction in progress
Property, Plant and Equipment [Line Items]
Gross PP&E	$ 30.8	$ 24.2