Derivatives - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Derivative Instruments, Gain (Loss) [Line Items]
Net gain (loss) on foreign currency exchange contracts	$ (62)	$ 545	$ (3,603)
Not Designated as Hedging Instrument | Foreign Currency Exchange Contracts | Other Income (Expense), Net
Derivative Instruments, Gain (Loss) [Line Items]
Net gain (loss) on foreign currency exchange contracts	$ (100)	$ 500	$ (3,600)