Property, Plant and Equipment (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Property, Plant and Equipment
Total property, plant and equipment, gross	$ 571.1	$ 471.8
Less: accumulated depreciation	(210.0)	(186.8)
Total property, plant and equipment, net	361.1	285.0
Land and buildings
Property, Plant and Equipment
Total property, plant and equipment, gross	$ 287.0	221.5
Land and buildings | Minimum
Property, Plant and Equipment
Property plant and equipment, useful life	20 years
Land and buildings | Maximum
Property, Plant and Equipment
Property plant and equipment, useful life	35 years
Machinery and equipment
Property, Plant and Equipment
Total property, plant and equipment, gross	$ 214.7	189.6
Machinery and equipment | Minimum
Property, Plant and Equipment
Property plant and equipment, useful life	3 years
Machinery and equipment | Maximum
Property, Plant and Equipment
Property plant and equipment, useful life	12 years
Computer equipment, furniture and fixtures
Property, Plant and Equipment
Total property, plant and equipment, gross	$ 38.5	35.3
Computer equipment, furniture and fixtures | Minimum
Property, Plant and Equipment
Property plant and equipment, useful life	3 years
Computer equipment, furniture and fixtures | Maximum
Property, Plant and Equipment
Property plant and equipment, useful life	7 years
Construction in process
Property, Plant and Equipment
Total property, plant and equipment, gross	$ 30.9	$ 25.4