Significant Accounting Policies - Estimated Useful Lives (Detail)	12 Months Ended
	Dec. 31, 2019
Minimum | Buildings and improvements
Property, Plant and Equipment [Line Items]
Property plant and equipment useful life	15 years
Minimum | Machinery and equipment
Property, Plant and Equipment [Line Items]
Property plant and equipment useful life	3 years
Minimum | Tools and dies
Property, Plant and Equipment [Line Items]
Property plant and equipment useful life	3 years
Minimum | Computer hardware and software
Property, Plant and Equipment [Line Items]
Property plant and equipment useful life	3 years
Maximum | Buildings and improvements
Property, Plant and Equipment [Line Items]
Property plant and equipment useful life	40 years
Maximum | Machinery and equipment
Property, Plant and Equipment [Line Items]
Property plant and equipment useful life	20 years
Maximum | Tools and dies
Property, Plant and Equipment [Line Items]
Property plant and equipment useful life	7 years
Maximum | Computer hardware and software
Property, Plant and Equipment [Line Items]
Property plant and equipment useful life	5 years