Fair Value Measurement - Effect of Derivative Instruments on Consolidated Statements of Income for Derivatives Not Designated as Accounting Hedges (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Amount of Gain (Loss) on Derivatives Recognized in Income (Loss)			$ 424	$ (1,614)
Foreign exchange contracts | Not Designated as Hedging Instrument | Cost of revenues
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Amount of Gain (Loss) on Derivatives Recognized in Income (Loss)	$ (540)	$ (885)	(847)	(885)
Foreign exchange contracts | Not Designated as Hedging Instrument | Other (income) expense
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Amount of Gain (Loss) on Derivatives Recognized in Income (Loss)	(41)	0	(223)	0
Interest rate swaps | Not Designated as Hedging Instrument | Interest and other expense
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Amount of Gain (Loss) on Derivatives Recognized in Income (Loss)	$ 4	$ (28)	$ 6	$ (1,024)