Property, Plant and Equipment - Major Components of Property, Plant, and Equipment (Details) - USD ($) $ in Millions	Sep. 30, 2019	Dec. 31, 2018
Property, Plant and Equipment
Total property, plant and equipment	$ 393.9	$ 391.0
Accumulated depreciation	(143.9)	(124.1)
Property, plant and equipment, net	250.0	266.9
Land and leasehold improvements
Property, Plant and Equipment
Total property, plant and equipment	66.4	67.8
Buildings and improvements
Property, Plant and Equipment
Total property, plant and equipment	102.9	101.0
Machinery, equipment, fixtures and software
Property, Plant and Equipment
Total property, plant and equipment	209.5	207.3
Construction in process
Property, Plant and Equipment
Total property, plant and equipment	$ 15.1	$ 14.9