Estimated Useful Lives by Property Plant and Equipment Class (Detail)	12 Months Ended
	Dec. 31, 2016
Buildings | Minimum
Property Plant And Equipment [Line Items]
Useful life term (years)	10 years
Buildings | Maximum
Property Plant And Equipment [Line Items]
Useful life term (years)	40 years
Machinery and Equipment | Minimum
Property Plant And Equipment [Line Items]
Useful life term (years)	3 years
Machinery and Equipment | Maximum
Property Plant And Equipment [Line Items]
Useful life term (years)	25 years
Furniture, Fixtures and Transportation Equipment | Minimum
Property Plant And Equipment [Line Items]
Useful life term (years)	3 years
Furniture, Fixtures and Transportation Equipment | Maximum
Property Plant And Equipment [Line Items]
Useful life term (years)	15 years