Basis of Presentation and Significant Accounting Policies - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2017 Country Segment
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]
Number of countries | Country	20
Number of reporting segments | Segment	3
Other Capitalized Property Plant And Equipment
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]
Property, plant and equipment economic useful lives	5 years
Minimum [Member]
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]
Percentage of completion to recognize expected profit	70.00%
Minimum [Member] | Building [Member]
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]
Property, plant and equipment economic useful lives	8 years
Minimum [Member] | Machinery and Equipment [Member]
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]
Property, plant and equipment economic useful lives	3 years
Maximum [Member] | Building [Member]
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]
Property, plant and equipment economic useful lives	33 years
Maximum [Member] | Machinery and Equipment [Member]
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]
Property, plant and equipment economic useful lives	28 years