Property and Equipment - Summary of Estimated Service Lives of Property and Equipment (Detail)	12 Months Ended
	Dec. 31, 2016
Minimum [Member] | Buildings and Improvements [Member]
Property, Plant and Equipment [Line Items]
Estimate life, years	3 years
Minimum [Member] | Machinery, Equipment and Computer Software [Member]
Property, Plant and Equipment [Line Items]
Estimate life, years	2 years
Maximum [Member] | Buildings and Improvements [Member]
Property, Plant and Equipment [Line Items]
Estimate life, years	50 years
Maximum [Member] | Machinery, Equipment and Computer Software [Member]
Property, Plant and Equipment [Line Items]
Estimate life, years	15 years