FAIR VALUE MEASUREMENTS (Tables)

9 Months Ended

Sep. 30, 2015

Financial assets and liabilities measured at fair value on a recurring basis

As of September 30, 2015 and December 31, 2014, assets and liabilities measured at fair value consisted of the following (in thousands):



	September 30, 2015								December 31, 2014
	Fair Value Measurements Using Input Types								Fair Value Measurements Using Input Types
	Level 1		Level 2		Level 3		Total		Level 2		Level 3		Total
Assets:
Money market fund	$	30,000	$	—	$	—	$	30,000	$	—	$	—	$	—
Derivative assets	—		419		—		419		1,258		—		1,258
Non-marketable securities	—		—		3,251		3,251		—		3,384		3,384
Total assets	$	30,000	$	419	$	3,251	$	33,670	$	1,258	$	3,384	$	4,642
Liabilities:
Derivatives liabilities	$	—	$	310	$	—	$	310	$	—	$	—	$	—

Fair value of non-marketable securities

The following table summarizes the change in the fair value of the Company's non-marketable securities during the nine months ended September 30, 2015 (in thousands).



Balance as of December 31, 2014	$	3,384
Sales	—
Realized gains	53
Unrealized losses	(186		)
Balance as of September 30, 2015	$	3,251