Income Taxes - Open Tax Years by Major Jurisdiction (Detail)	12 Months Ended
	Dec. 31, 2014
China
Open Tax Years By Major Jurisdiction [Line Items]
Open tax years by major jurisdiction	2009
Czech
Open Tax Years By Major Jurisdiction [Line Items]
Open tax years by major jurisdiction	2013
Germany
Open Tax Years By Major Jurisdiction [Line Items]
Open tax years by major jurisdiction	2006
Italy
Open Tax Years By Major Jurisdiction [Line Items]
Open tax years by major jurisdiction	2005
Japan
Open Tax Years By Major Jurisdiction [Line Items]
Open tax years by major jurisdiction	2010
Korea
Open Tax Years By Major Jurisdiction [Line Items]
Open tax years by major jurisdiction	2006
Luxembourg
Open Tax Years By Major Jurisdiction [Line Items]
Open tax years by major jurisdiction	2011
Mexico
Open Tax Years By Major Jurisdiction [Line Items]
Open tax years by major jurisdiction	2009
United States
Open Tax Years By Major Jurisdiction [Line Items]
Open tax years by major jurisdiction	2009