Property, Plant and Equipment (Tables)

12 Months Ended

Dec. 31, 2013

Property, Plant and Equipment [Abstract]

Components of property, plant and equipment

Depreciation is computed using the straight-line method over the following estimated useful lives:

Buildings and improvements:
Buildings and improvements	10 to 30 years
Leasehold improvements	2 to 20 years
Machinery and equipment:
Computer hardware	3 to 5 years
Computer software	3 to 10 years
Factory machinery and equipment	3 to 15 years
Research and development equipment	3 to 15 years
Vehicles	3 to 10 years

Components of Property, plant and equipment, net were as follows (in millions):

	As of December 31,
	2013			2012
Land	$	39.5		$	29.4
Buildings and improvements	212.6			208.6
Machinery and equipment	649.1			612.9
Construction in progress and equipment not yet in service	51.6			32.1
Total	952.8			883.0
Less accumulated depreciation	(617.3		)	(584.8		)
Property, plant and equipment, net	$	335.5		$	298.2