Income Taxes - Summary of Open Tax Years by Major Jurisdiction Outside of the United States (Detail)	12 Months Ended
	Dec. 31, 2015
Earliest Tax Year | China
Income Tax Contingency [Line Items]
Open tax years by major tax jurisdiction	2003
Earliest Tax Year | France
Income Tax Contingency [Line Items]
Open tax years by major tax jurisdiction	2011
Earliest Tax Year | Germany
Income Tax Contingency [Line Items]
Open tax years by major tax jurisdiction	2009
Earliest Tax Year | India
Income Tax Contingency [Line Items]
Open tax years by major tax jurisdiction	1998
Earliest Tax Year | Japan
Income Tax Contingency [Line Items]
Open tax years by major tax jurisdiction	2012
Earliest Tax Year | United Kingdom
Income Tax Contingency [Line Items]
Open tax years by major tax jurisdiction	2009
Latest Tax Year | China
Income Tax Contingency [Line Items]
Open tax years by major tax jurisdiction	2015
Latest Tax Year | France
Income Tax Contingency [Line Items]
Open tax years by major tax jurisdiction	2015
Latest Tax Year | Germany
Income Tax Contingency [Line Items]
Open tax years by major tax jurisdiction	2015
Latest Tax Year | India
Income Tax Contingency [Line Items]
Open tax years by major tax jurisdiction	2015
Latest Tax Year | Japan
Income Tax Contingency [Line Items]
Open tax years by major tax jurisdiction	2015
Latest Tax Year | United Kingdom
Income Tax Contingency [Line Items]
Open tax years by major tax jurisdiction	2015