v3.5.0.2
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