Other Income (Expense), Net (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Other Income and Expenses [Abstract]
Net gain (loss) on foreign currency exchange contracts	$ 368	$ 69	$ (8)	$ 603
Net gain (loss) on foreign currency exchange transactions	(689)	(2,377)	(662)	(4,617)
Other income	173	26	244	63
Other (expense), net	$ (148)	$ (2,282)	$ (426)	$ (3,951)