Property, Plant and Equipment (Textuals) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Property, Plant and Equipment [Line Items]
Depreciation	$ 94.3	$ 88.1	$ 86.1
Accumulated depreciation, capitalized leases		1.5
Capitalized interest	$ 2.7	3.6	$ 1.5
Asset impairment charges, equipment		4.5
Machinery and Equipment [Member]
Property, Plant and Equipment [Line Items]
Capitalized leases		$ 1.5