FAIR VALUE (Tables)

3 Months Ended

Mar. 31, 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 March 31, 2017
	Level 1		Level 2		Level 3		Total
Financial assets (liabilities):
Cash equivalents and current investments	$	37,947	$	—	$	—	$	37,947
Other long-term assets		3,557		—		—		3,557
Forward contracts		—		339		—		339
Life insurance contracts		—		—		34,024		34,024
Total	$	41,504	$	339	$	34,024	$	75,867

	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 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		1,535
Purchases and issuances		314
Sales and settlements		(111	)
Transfers into Level 3		—
Ending balance at March 31, 2017	$	34,024