Other Current Assets - Other Current Assets, Net (Detail) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Deferred tax assets (Note 20)	$ 12,009	$ 13,703
Financial derivatives (Note 10)	10,962	1,489
Investments held in rabbi trust (Note 11)	7,851	6,952
Value added tax certificates		6,303
Other current assets	2,440	1,209
Total other current assets	$ 33,262	$ 29,656