STOCKHOLDERS’ EQUITY Restricted Stock Units, Employee Stock Purchase Plan and Stock Options Narrative (Details)	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2014 Total shares authorized [Member] [Domain]	Sep. 30, 2014 Restricted Stock Units (RSUs) [Member]	Jun. 30, 2014 Restricted Stock Units (RSUs) [Member]	Mar. 31, 2014 Restricted Stock Units (RSUs) [Member]	Dec. 31, 2013 Restricted Stock Units (RSUs) [Member]	Sep. 30, 2014 Stock Plan 2005 [Member]	Sep. 30, 2014 Employee Stock Purchase Plan 2010 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized								25,000,000
Total shares authorized		158,000,000
Number of shares available for issuances			17,280,000	25,814,000	21,352,000	21,245,000		18,900,000
Share counted against the numerical limit for options available for grant on or after May 9, 2013	1.57
Shares counted against the numerical limit for options available for grant on or after May 18, 2011 (in shares)							1.61
Shares counted against the numerical limit for options available for grant prior to May 18, 2011 (in shares)							1.78
Share available for grant after ratio adjustment			11,000,000