General (Tables)

9 Months Ended

Sep. 30, 2019

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Schedule of Derivative Instruments in Statement of Financial Position, Fair Value

Derivative instruments measured at fair value and their classification on the consolidated balance sheets are presented in the following table (in thousands):

	Assets (liabilities) as of September 30, 2019 (unaudited)					Liabilities as of December 31, 2018
	Notional Amount		Fair Value			Notional Amount		Fair Value
Foreign exchange forward contract derivatives in cash flow hedging relationships included in other current assets and accrued expenses and other short term liabilities	$	22,413	$	731		$	75,153	$	(3,628	)
Foreign exchange forward contract derivatives for monetary items included in other short term liabilities	$	17,823	$	(5	)	$	29,162	$	(18	)

Cash, Cash Equivalents and Investments

Cash, cash equivalents, marketable securities and short-term deposits consist of the following (in thousands):

	As of September 30, 2019
	(unaudited)
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized   Loss			Fair Value
Cash and cash equivalents
Money market funds	$	4,788	$	—	$	—		$	4,788
Total	$	4,788	$	—	$	—		$	4,788
Marketable securities
US Treasury securities	$	41,367	$	31	$	(1	)	$	41,397
Total	$	41,367	$	31	$	(1	)	$	41,397
Short-term deposits
Term bank deposits	$	37,000	$	—	$	—		$	37,000
Total	$	37,000	$	—	$	—		$	37,000

	As of December 31, 2018
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized   Loss			Fair Value
Cash and cash equivalents
Money market funds	$	2,594	$	—	$	—		$	2,594
Total	$	2,594	$	—	$	—		$	2,594
Marketable securities
US Treasury securities	$	39,776	$ *)		$	(6	)	$	39,770
Total	$	39,776	$ *)		$	(6	)	$	39,770
Short-term deposits
Term bank deposits	$	70,438	$	—	$	—		$	70,438
Total	$	70,438	$	—	$	—		$	70,438

*) Represents an amount lower than $1