FAIR VALUE MEASUREMENTS AND INVESTMENTS IN MARKETABLE SECURITIES (Tables)

6 Months Ended

Jun. 30, 2015

Fair Value Disclosures [Abstract]

Summary of Assets and Liabilities Measured at Fair Value on Recurring Basis

Assets and liabilities measured at fair value on a recurring basis as of June 30, 2015 is as follows (in thousands):

			Fair Value Measurements Using
			Quoted Prices		Significant
			in Active		Other		Significant
	Balance as of		Markets for		Observable		Unobservable
	June 30,		Identical Assets		Inputs		Inputs
	2015		(Level 1)		(Level 2)		(Level 3)
Assets:
Restricted cash	$	1,540	$	1,540	$	—	$	—
Money market funds(1)		28,868		28,868		—		—
Commercial paper(1)		1,500		—		1,500		—
Corporate debt securities		67,763		—		67,763		—
Government sponsored entities		61,888		—		61,888		—
Total assets	$	161,559	$	30,408	$	131,151		—
Liabilities:
Contingent consideration	$	16,021	$	—	$	—	$	16,021

⁽¹⁾ Included within cash and cash equivalents on the Company’s condensed consolidated balance sheet.

Available-for-sale Securities

Investments classified as available-for-sale at June 30, 2015 consisted of the following (in thousands):

				Gross		Gross			Aggregate
		Amortized		Unrealized		Unrealized			Estimated
	Maturity (in years)	Cost		Gains		Losses			Fair Value
Marketable Securities:
Commercial paper(1)	1 year or less	$	1,499	$	1	$	—		$	1,500
Corporate debt securities	1 year or less		51,326		4		(20	)		51,310
Corporate debt securities	1-2 years		13,460		2		(11	)		13,451
Corporate debt securities	More than 2 years		3,000		2		—			3,002
Government sponsored entities	1 year or less		51,178		12		—			51,190
Government sponsored entities	1-2 years		10,690		11		(3	)		10,698
Government sponsored entities	More than 2 years		—		—		—			—
Total available-for-sale securities		$	131,153	$	32	$	(34	)	$	131,151

⁽¹⁾ Included within cash and cash equivalents on the Company’s condensed consolidated balance sheet.