FAIR VALUE (Tables)

9 Months Ended

Sep. 30, 2018

FAIR VALUE [Abstract]

Assets and Liabilities Measured at Fair Value on a Recurring Basis

The following tables present the fair value hierarchy for those assets and liabilities measured at fair value on a recurring basis (U.S. dollars in thousands):

	Fair Value at September 30, 2018
	Level 1		Level 2		Level 3		Total
Financial assets (liabilities):
Cash equivalents and current investments	$	38,282	$	—	$	—	$	38,282
Other long-term assets		3,582		—		—		3,582
Forward contracts		—		—		—		—
Life insurance contracts		—		—		39,248		39,248
Total	$	41,864	$	—	$	39,248	$	81,112

	Fair Value at December 31, 2017
	Level 1		Level 2		Level 3		Total
Financial assets (liabilities):
Cash equivalents and current investments	$	36,531	$	—	$	—	$	36,531
Other long-term assets		3,726		—		—		3,726
Forward contracts		—		158		—		158
Life insurance contracts		—		—		37,737		37,737
Total	$	40,257	$	158	$	37,737	$	78,152

Changes in Fair Value of Level 3 Marketable Securities

The following table provides a summary of changes in fair value of the Company’s Level 3 marketable securities (U.S. dollars in thousands):

Life Insurance Contracts
Beginning balance at January 1, 2018	$	37,737
Actual return on plan assets		1,746
Purchases and issuances		—
Sales and settlements		(235	)
Transfers into Level 3		—
Ending balance at September 30, 2018	$	39,248