Property, Plant and Equipment, Net (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Property, plant and equipment, Net
Property, plant and equipment, gross	$ 828.0	$ 731.7
Less accumulated depreciation and amortization	(432.5)	(425.6)
Property, plant and equipment, net	395.5	306.1
Depreciation and amortization	44.7	37.3	$ 36.0
Land
Property, plant and equipment, Net
Property, plant and equipment, gross	36.5	26.5
Building and leasehold improvements
Property, plant and equipment, Net
Property, plant and equipment, gross	374.7	305.2
Machinery, equipment, software and furniture and fixtures
Property, plant and equipment, Net
Property, plant and equipment, gross	$ 416.8	$ 400.0

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.

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Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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