SIGNIFICANT ACCOUNTING POLICIES - Basis of Presentation (Details) - USD ($) $ in Thousands |
Aug. 06, 2015 |
Feb. 27, 2015 |
|---|---|---|
| ETG System | ||
| Basis of Presentation | ||
| Consideration paid in excess of net book value in connection with the ETG Contribution | $ 6,809 | |
| Legacy System contributed by Azure | ||
| Basis of Presentation | ||
| IDR units issued as payment (in shares) | 90 | |
| Aggregate consideration transferred | $ 162,500 | |
| Increase in partners' capital, excess of the historical carrying value over the consideration paid | $ 51,700 |