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Income Taxes - Major Jurisdictions no Longer Subject to Income Tax Examinations by Tax Authorities (Detail)
 12 Months Ended
Dec. 31, 2015
Federal  
Income Tax Examination [Line Items]  
Income Tax Examination Years No Longer Subject To Examination 2010 and prior
State  
Income Tax Examination [Line Items]  
Income Tax Examination Years No Longer Subject To Examination 2008 and prior
Canada  
Income Tax Examination [Line Items]  
Income Tax Examination Years No Longer Subject To Examination 2009 and prior
Japan  
Income Tax Examination [Line Items]  
Income Tax Examination Years No Longer Subject To Examination 2008 and prior
South Korea  
Income Tax Examination [Line Items]  
Income Tax Examination Years No Longer Subject To Examination 2009 and prior
United Kingdom  
Income Tax Examination [Line Items]  
Income Tax Examination Years No Longer Subject To Examination 2011 and prior