NET LOSS PER COMMON SHARE (Tables)

6 Months Ended

Jun. 30, 2014

Earnings Per Share [Abstract]

Securities excluded from diluted earnings per common share on an actual outstanding basis

Potentially dilutive securities excluded from diluted net loss per common share on an actual outstanding basis, were as follows (in thousands):

	Three Months Ended June 30,		Six Months Ended June 30,
	2014	2013	2014	2013
Employee stock options	4,540	5,646	4,540	5,646
Employee stock purchase plan	89	14	45	14
Restricted stock and restricted stock units	4,336	3,887	4,336	3,887
Convertible notes	17,857	17,857	17,857	17,868
Total	26,822	27,404	26,778	27,415