Other Income (Expense), Net - Components of Other Income Expense (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Other Income and Expenses [Abstract]
Foreign currency gain (loss)	$ 880	$ (3,058)	$ (488)	$ (6,993)
Other miscellaneous income (expense)	308	121	601	(697)
Total other income (expense), net	$ 1,188	$ (2,937)	$ 113	$ (7,690)