LOSS PER SHARE - (Details) - shares shares in Thousands |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2016 |
Sep. 30, 2015 |
Sep. 30, 2016 |
Sep. 30, 2015 |
|
| Denominator: | ||||
| Anti-dilutive potential common equivalent shares excluded from calculation of net (loss) income per share | 10,501 | 11,021 | 11,754 | 10,948 |
| Stock options | ||||
| Denominator: | ||||
| Anti-dilutive potential common equivalent shares excluded from calculation of net (loss) income per share | 9,203 | 9,539 | 10,507 | 9,110 |
| Restricted stock units | ||||
| Denominator: | ||||
| Anti-dilutive potential common equivalent shares excluded from calculation of net (loss) income per share | 1,298 | 1,482 | 1,247 | 1,838 |