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

9 Months Ended

Sep. 30, 2015

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 September 30, 2015
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Market Value
	(in thousands)
Cash and money market funds	$	44,720	$	—	$	—		$	44,720
Commercial paper		11,099		—		—			11,099
Government and government agency bonds		28,248		1		—			28,249
Corporate bonds		15,843		—		(2	)		15,841
Total assets	$	99,910	$	1	$	(2	)	$	99,909
As reported:
Cash and cash equivalents	$	55,819	$	—	$	—		$	55,819
Short-term investments		44,091		1		(2	)		44,090
Total assets	$	99,910	$	1	$	(2	)	$	99,909

	As of December 31, 2014
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Market Value
	(in thousands)
Cash and money market funds	$	73,551	$	—	$	—		$	73,551
Commercial paper		2,997		—		—			2,997
Government and government agency bonds		75,289		—		(39	)		75,250
Corporate bonds		58,602		—		(56	)		58,546
Total assets	$	210,439	$	—	$	(95	)	$	210,344
As reported:
Cash and cash equivalents	$	73,551	$	—	$	—		$	73,551
Short-term investments		136,888		—		(95	)		136,793
Total assets	$	210,439	$	—	$	(95	)	$	210,344