LOSS PER SHARE (Details 2) - shares shares in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Denominator:
Anti-dilutive potential common equivalent shares excluded from calculation of net (loss) income per share	11,021	11,404	10,948	11,426
Stock options
Denominator:
Anti-dilutive potential common equivalent shares excluded from calculation of net (loss) income per share	9,539	9,721	9,110	9,605
Restricted stock units
Denominator:
Anti-dilutive potential common equivalent shares excluded from calculation of net (loss) income per share	1,482	1,683	1,838	1,821