Description of Business and Summary of Significant Accounting Policies - Net Plant and Equipment (Details)	12 Months Ended
	Dec. 31, 2018
Minimum | Buildings and Improvements
Property, Plant and Equipment [Line Items]
Plant and equipment, useful life	5 years
Minimum | Machinery and Equipment
Property, Plant and Equipment [Line Items]
Plant and equipment, useful life	3 years
Maximum | Buildings and Improvements
Property, Plant and Equipment [Line Items]
Plant and equipment, useful life	50 years
Maximum | Machinery and Equipment
Property, Plant and Equipment [Line Items]
Plant and equipment, useful life	12 years