Presentation, Summary of Significant Accounting Policies and Recent Accounting Standard Updates - Estimated Useful lives of the Assets (Detail)	12 Months Ended
	Dec. 31, 2017
Buildings and improvements | Minimum
Property Plant And Equipment
Estimated useful lives	5 years
Buildings and improvements | Maximum
Property Plant And Equipment
Estimated useful lives	33 years
Production equipment and machinery | Minimum
Property Plant And Equipment
Estimated useful lives	2 years
Production equipment and machinery | Maximum
Property Plant And Equipment
Estimated useful lives	25 years
Office furniture, equipment and other | Minimum
Property Plant And Equipment
Estimated useful lives	3 years
Office furniture, equipment and other | Maximum
Property Plant And Equipment
Estimated useful lives	10 years