PREPAID AND OTHER CURRENT ASSETS (Details) - USD ($) $ in Thousands |
Sep. 30, 2016 |
Dec. 31, 2015 |
|---|---|---|
| Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract] | ||
| Restricted cash | $ 517 | $ 6,669 |
| Landlord incentives for leasehold improvements | 0 | 6,454 |
| Prepaid expenses | 2,522 | 2,408 |
| Other | 3,404 | 4,289 |
| Total | $ 6,443 | $ 19,820 |