CASH, CASH EQUIVALENTS AND INVESTMENTS (Tables)

9 Months Ended

Sep. 30, 2014

Cash and Cash Equivalents [Abstract]

Cash, cash equivalents and investments

Investments as of September 30, 2014 and December 31, 2013 consisted of the following (in thousands):

	Amortized		Unrealized					Aggregate Fair
Investment Classification	Cost		Gains		(Losses)			Market Value
September 30, 2014
Certificates of deposit	$	10,785	$	5	$	(10	)	$	10,780
Corporate bonds	216,788		23		(16		)	216,795
U.S. Government bonds	5,999		—		—			5,999
Convertible notes	—		—		—			—
	$	233,572	$	28	$	(26	)	$	233,574
December 31, 2013
Certificates of deposit	$	11,358	$	2	$	(16	)	$	11,344
Corporate bonds	190,738		33		(48		)	190,723
U.S. Government bonds	3,074		—		—			3,074
Convertible notes	4,300		—		—			4,300
	$	209,470	$	35	$	(64	)	$	209,441