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Income Taxes - Summary of Income Tax Examinations (Detail)
 12 Months Ended
Dec. 31, 2016
Australia [Member]  
Open Tax Years By Major Jurisdiction [Line Items]  
Earliest tax year subject to audit 2008
Austria [Member]  
Open Tax Years By Major Jurisdiction [Line Items]  
Earliest tax year subject to audit 2010
Belgium [Member]  
Open Tax Years By Major Jurisdiction [Line Items]  
Earliest tax year subject to audit 2014
Canada [Member]  
Open Tax Years By Major Jurisdiction [Line Items]  
Earliest tax year subject to audit 2012
Netherlands [Member]  
Open Tax Years By Major Jurisdiction [Line Items]  
Earliest tax year subject to audit 2011
Singapore [Member]  
Open Tax Years By Major Jurisdiction [Line Items]  
Earliest tax year subject to audit 2011
Switzerland [Member]  
Open Tax Years By Major Jurisdiction [Line Items]  
Earliest tax year subject to audit 2015
United States [Member]  
Open Tax Years By Major Jurisdiction [Line Items]  
Earliest tax year subject to audit 2007