General (Tables)

6 Months Ended

Jun. 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 as of June 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	$	40,768	$	197	$	75,153	$	(3,628	)
Foreign exchange forward contract derivatives for monetary items included in other current assets and accrued expenses and other short term liabilities	$	22,906	$	31	$	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 June 30, 2019
	(unaudited)
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized   Loss		Fair Value
Cash and cash equivalents
Money market funds	$	11,080	$	—	$	—	$	11,080
Total	$	11,080	$	—	$	—	$	11,080
Marketable securities
US Treasury securities	$	35,806	$	39	$	—	$	35,845
Total	$	35,806	$	39	$	—	$	35,845
Short-term deposits
Term bank deposits	$	41,328	$	—	$	—	$	41,328
Total	$	41,328	$	—	$	—	$	41,328

	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

Schedule of Cash and Cash Equivalents and Long Term Restricted Cash

The following table provides a reconciliation of cash and cash equivalents and long term restricted cash reported within the consolidated balance sheets that sum to the total of such amounts in the consolidated statements of cash flows:

	June 30, 2019		June 30, 2018
	(unaudited)
Cash and cash equivalents	$	69,159	$	73,636
Long term restricted cash included in other assets	—		520
Cash, cash equivalents and long term restricted cash shown in the consolidated statement of cash flows	$	69,159	$	74,156

Schedule of Cash and Cash Equivalents and Long Term Restricted Cash

The following table provides a reconciliation of cash and cash equivalents and long term restricted cash reported within the consolidated balance sheets that sum to the total of such amounts in the consolidated statements of cash flows:

	June 30, 2019		June 30, 2018
	(unaudited)
Cash and cash equivalents	$	69,159	$	73,636
Long term restricted cash included in other assets	—		520
Cash, cash equivalents and long term restricted cash shown in the consolidated statement of cash flows	$	69,159	$	74,156