OTHER ASSETS (Details) - USD ($) $ in Thousands |
Jun. 30, 2016 |
Dec. 31, 2015 |
|---|---|---|
| Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract] | ||
| Security deposits | $ 5,365 | $ 5,341 |
| Maintenance agreements, non-current portion | 1,334 | 1,570 |
| Restricted cash | 4,781 | 4,801 |
| Other | 1,206 | 1,441 |
| Total | $ 12,686 | $ 13,153 |