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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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.

+ References

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

+ References

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The charge against earnings resulting from the aggregate write down of tangible assets from their carrying value to their fair value.

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Property, Plant and Equipment, net (Details) - USD ($) $ in Millions	3 Months Ended			9 Months Ended
	Sep. 30, 2017	Jun. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016
Property, Plant and Equipment [Line Items]
Cost	$ 643.4			$ 643.4		$ 586.3
Accumulated depreciation	(449.6)			(449.6)		(400.1)
Total	193.8			193.8		186.2
Tangible Asset Impairment Charges	0.3	$ 1.4	$ 0.0	1.7	$ 0.0
Land
Property, Plant and Equipment [Line Items]
Cost	9.1			9.1		9.2
Buildings and improvements
Property, Plant and Equipment [Line Items]
Cost	121.9			121.9		112.3
Machinery, equipment, and other
Property, Plant and Equipment [Line Items]
Cost	$ 512.4			$ 512.4		$ 464.8