COMMITMENTS AND CONTINGENCIES - Narrative (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2016 |
Dec. 31, 2015 |
Dec. 31, 2014 |
|
| Purchase Commitment, Excluding Long-term Commitment [Line Items] | |||
| Rent expense | $ 2,400 | $ 2,500 | $ 2,100 |
| Litigation settlement amount | 5,750 | ||
| Amount of legal settlement paid | 1,220 | ||
| Inventories | |||
| Purchase Commitment, Excluding Long-term Commitment [Line Items] | |||
| Amount of manufacturing commitment | $ 9,500 | $ 14,000 | |