FAIR VALUE (Tables)

9 Months Ended

Sep. 30, 2017

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, 2017
	Level 1		Level 2		Level 3		Total
Financial assets (liabilities):
Cash equivalents and current investments	$	40,070	$	—	$	—	$	40,070
Other long-term assets		3,472		—		—		3,472
Forward contracts		—		275		—		275
Life insurance contracts		—		—		36,747		36,747
Total	$	43,542	$	275	$	36,747	$	80,564

	Fair Value at December 31, 2016
	Level 1		Level 2		Level 3		Total
Financial assets (liabilities):
Cash equivalents and current investments	$	50,307	$	—	$	—	$	50,307
Other long-term assets		2,782		—		—		2,782
Forward contracts		—		1,371		—		1,371
Life insurance contracts		—		—		32,286		32,286
Total	$	53,089	$	1,371	$	32,286	$	86,746

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, 2017	$	32,286
Actual return on plan assets:
Relating to assets still held at the reporting date		3,835
Purchases and issuances		895
Sales and settlements		(269	)
Transfers into Level 3		—
Ending balance at September 30, 2017	$	36,747