FAIR VALUE MEASUREMENTS (Tables)

9 Months Ended

Sep. 30, 2015

Summary of the levels of the fair value hierarchy into which the Company's financial assets and liabilities fall

The following tables summarize the levels of the fair value hierarchy into which the Company's financial assets and liabilities fall as of September 30, 2015:

Financial assets:	Total		Level 1		Level 2		Level 3
Included in cash and cash equivalents
U.S. treasury bills	$	10,000	$	—	$	10,000	$	—
Government securities money market		19,419		—		19,419		—
Investments
U.S. treasury bills		113,002		—		113,002		—

Total financial assets	$	142,421	$	—	$	142,421	$	—

The following table summarizes the levels of the fair value hierarchy into which the Company's financial assets fall as of December 31, 2014:

Financial assets:	Total		Level 1		Level 2		Level 3
Included in cash and cash equivalents
Government securities money market	$	128,739	$	—	$	128,739	$	—
Investments
U.S. treasury bills		39,997		—		39,997		—

Total financial assets	$	168,736	$	—	$	168,736	$	—

Schedule of changes to the Company's investment classified as Level 3

The changes to the Company's investment classified as Level 3 are as follows for the nine months ended September 30, 2014.

	Common Stock
January 1, 2014	$	1,904
Non-cash settlement of customer receivable		1,000
Distribution to Parent		(2,904	)

September 30, 2014	$	—


Unrealized gains (losses) related to investment still held as of September 30, 2014	$	—