Summary of Significant Accounting Policies - Property, Plant and Equipment (Details)	12 Months Ended
	Dec. 31, 2016 USD ($)
Individual assets excluding computer equipment
Property, Plant and Equipment [Line Items]
Capitalization threshold, minimum useful life	1 year
Capitalization threshold, minimum cost	$ 5,000
Assets purchased in bulk
Property, Plant and Equipment [Line Items]
Capitalization threshold, minimum cost	$ 5,000
Buildings | Minimum
Property, Plant and Equipment [Line Items]
Estimated useful life	25 years
Buildings | Maximum
Property, Plant and Equipment [Line Items]
Estimated useful life	33 years
Tooling and equipment | Minimum
Property, Plant and Equipment [Line Items]
Estimated useful life	2 years
Tooling and equipment | Maximum
Property, Plant and Equipment [Line Items]
Estimated useful life	7 years
Computer equipment
Property, Plant and Equipment [Line Items]
Capitalization threshold, minimum useful life	1 year
Capitalization threshold, minimum cost	$ 1,000
Computer equipment | Minimum
Property, Plant and Equipment [Line Items]
Estimated useful life	3 years
Computer equipment | Maximum
Property, Plant and Equipment [Line Items]
Estimated useful life	5 years
Software | Minimum
Property, Plant and Equipment [Line Items]
Estimated useful life	3 years
Software | Maximum
Property, Plant and Equipment [Line Items]
Estimated useful life	7 years
Furniture and fixtures | Minimum
Property, Plant and Equipment [Line Items]
Estimated useful life	5 years
Furniture and fixtures | Maximum
Property, Plant and Equipment [Line Items]
Estimated useful life	8 years
Leasehold and building improvements | Minimum
Property, Plant and Equipment [Line Items]
Estimated useful life	2 years
Leasehold and building improvements | Maximum
Property, Plant and Equipment [Line Items]
Estimated useful life	10 years