Taxes - Primary Income Tax Jurisdictions and their Respective Audit Years (Detail)	12 Months Ended
	Dec. 31, 2013
United States [Member]
Open Tax Years By Major Jurisdiction [Line Items]
Open tax audit beginning year	2010
Open tax audit ending year	2013
The Netherlands [Member]
Open Tax Years By Major Jurisdiction [Line Items]
Open tax audit beginning year	2010
Open tax audit ending year	2013
Singapore [Member]
Open Tax Years By Major Jurisdiction [Line Items]
Open tax audit beginning year	2009
Open tax audit ending year	2013
United Kingdom [Member]
Open Tax Years By Major Jurisdiction [Line Items]
Open tax audit beginning year	2012
Open tax audit ending year	2013
Venezuela [Member]
Open Tax Years By Major Jurisdiction [Line Items]
Open tax audit beginning year	2009
Open tax audit ending year	2013
Colombia [Member]
Open Tax Years By Major Jurisdiction [Line Items]
Open tax audit year	2013