CASH, CASH EQUIVALENTS AND SHORT-TERM INVESTMENTS (Tables)

3 Months Ended

Mar. 31, 2016

Cash And Cash Equivalents [Abstract]

Summary of Company Cash, Cash Equivalents and Short-Term Investments

The following tables summarize the Company’s cash, cash equivalents and short-term investments for each of the periods indicated:

	As of March 31, 2016
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Market Value
	(in thousands)
Cash and money market funds	$	38,001	$	—	$	—		$	38,001
Commercial paper		29,972		—		(1	)		29,971
Government and government agency bonds		43,826		3		(1	)		43,828
Corporate bonds		17,362		—		(6	)		17,356
Total assets	$	129,161	$	3	$	(8	)	$	129,156
As reported:
Cash and cash equivalents	$	38,001	$	—	$	—		$	38,001
Short-term investments		91,160		3		(8	)		91,155
Total assets	$	129,161	$	3	$	(8	)	$	129,156

	As of December 31, 2015
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Market Value
	(in thousands)
Cash and money market funds	$	75,304	$	—	$	—		$	75,304
Commercial paper		48,936		—		(37	)		48,899
Government and government agency bonds		50,966		—		(48	)		50,918
Corporate bonds		17,396		—		(26	)		17,370
Total assets	$	192,602	$	—	$	(111	)	$	192,491
As reported:
Cash and cash equivalents	$	80,304	$	—	$	—		$	80,304
Short-term investments		112,298		—		(111	)		112,187
Total assets	$	192,602	$	—	$	(111	)	$	192,491