RELATED PARTY TRANSACTIONS (Details) - Affiliated Entity $ in Thousands |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
|
Sep. 30, 2018
USD ($)
|
Sep. 30, 2017
USD ($)
|
Sep. 30, 2018
USD ($)
supplier
|
Sep. 30, 2017
USD ($)
|
|
| Related Party Transaction [Line Items] | ||||
| Number of related party suppliers | supplier | 2 | |||
| FMI | ||||
| Related Party Transaction [Line Items] | ||||
| Payments to related party | $ | $ 738 | $ 757 | $ 3,004 | $ 1,862 |