Derivatives and Hedging Activities (Schedule of Balance Sheet Classification and Fair Values of Derivative Instruments) (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Derivatives, Fair Value [Line Items]
Fair value	$ (336)	$ (450)
Notional amount	174,237	130,423
Foreign Exchange Contract [Member] \| Not Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Notional amount of derivative asset	103,900
Foreign Exchange Contract [Member] \| Designated as Hedging Instrument [Member] \| Cash Flow Hedge [Member]
Derivatives, Fair Value [Line Items]
Notional amount of derivative asset	25,000	41,300
Other current assets [Member] \| Foreign Exchange Contract [Member] \| Not Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Fair value derivative asset	63	374
Notional amount of derivative asset	11,001	34,695
Other current assets [Member] \| Foreign Exchange Contract [Member] \| Designated as Hedging Instrument [Member] \| Cash Flow Hedge [Member]
Derivatives, Fair Value [Line Items]
Fair value derivative asset	315
Notional amount of derivative asset	25,045
Accrued expenses and other current liabilities [Member] \| Foreign Exchange Contract [Member] \| Not Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Fair value derivative liability	(388)	(196)
Notional amount of derivative liability	92,929	54,425
Accrued expenses and other current liabilities [Member] \| Foreign Exchange Contract [Member] \| Designated as Hedging Instrument [Member] \| Cash Flow Hedge [Member]
Derivatives, Fair Value [Line Items]
Fair value derivative liability	(326)	(628)
Notional amount of derivative liability	$ 45,262	$ 41,303

Nominal or face amount used to calculate payments on the derivative asset.

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