Summary of Significant Accounting Policies - Property, Plant and Equipment, Net (Details)	12 Months Ended
	Dec. 31, 2017
Buildings and improvements | Minimum
Property, Plant and Equipment [Line Items]
Estimated useful lives	15 years
Buildings and improvements | Maximum
Property, Plant and Equipment [Line Items]
Estimated useful lives	40 years
Computer equipment and software
Property, Plant and Equipment [Line Items]
Estimated useful lives	5 years
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Estimated useful lives	5 years
Laboratory and production equipment
Property, Plant and Equipment [Line Items]
Estimated useful lives	5 years
Land improvements
Property, Plant and Equipment [Line Items]
Estimated useful lives	10 years