Summary of Significant Accounting Policies- Long-Lived Assets (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Property, Plant and Equipment
Impairment loss of property, plant and equipment	$ 16.0	$ 17.7
Buildings | Minimum
Property, Plant and Equipment
Useful lives	5 years
Buildings | Maximum
Property, Plant and Equipment
Useful lives	50 years
Machinery and equipment | Minimum
Property, Plant and Equipment
Useful lives	3 years
Machinery and equipment | Maximum
Property, Plant and Equipment
Useful lives	20 years