Summary of Significant Accounting Policies (Property, Plant and Equipment) (Details)	12 Months Ended
	Dec. 31, 2018
Building and Improvements [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives of property, plant and equipment	2 years
Building and Improvements [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives of property, plant and equipment	33 years
Leasehold Improvements [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives of property, plant and equipment	1 year
Leasehold Improvements [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives of property, plant and equipment	39 years
Computer Hardware [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives of property, plant and equipment	3 years
Computer Hardware [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives of property, plant and equipment	5 years
Computer Software [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives of property, plant and equipment	3 years
Computer Software [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives of property, plant and equipment	10 years
Factory Machinery and Equipment [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives of property, plant and equipment	1 year
Factory Machinery and Equipment [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives of property, plant and equipment	15 years
Research and Development Equipment [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives of property, plant and equipment	3 years
Research and Development Equipment [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives of property, plant and equipment	10 years
Vehicles [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives of property, plant and equipment	2 years
Vehicles [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives of property, plant and equipment	8 years