v3.3.1.900
ACQUISITIONS - Narrative (Details) - USD ($)
$ in Thousands
2 Months Ended 3 Months Ended 5 Months Ended 10 Months Ended 12 Months Ended
Feb. 27, 2015
Feb. 27, 2015
Sep. 30, 2015
Dec. 31, 2015
Dec. 31, 2015
Dec. 31, 2015
Acquisitions            
Cash consideration $ 99,500         $ 99,500
Legacy System contributed by Azure            
Acquisitions            
Aggregate consideration transferred $ 162,500          
IDR units issued as payment (in shares) 90          
Increase in partners' capital, excess of the historical carrying value over the consideration paid $ 51,700 $ 51,700        
The Partnership (acquiree)            
Acquisitions            
Revenues attributable to the Partnership's historical midstream assets         $ 42,500  
Net loss attributable to the Partnership's historical midstream assets         14,800  
Asset impairment     $ 215,800      
Pro Forma            
Acquisitions            
Asset impairment         215,800  
AES | Transloading Service Agreement            
Acquisitions            
Extension period for volume commitments   5 years        
NuDevco | Transition services agreement            
Acquisitions            
Agreement period 2 months          
Transition expense         $ 800  
The Partnership (acquiree)            
Acquisitions            
Other Significant Noncash Transaction, Value of Consideration Given       $ 700    
The Partnership (acquiree) | Pro Forma            
Acquisitions            
Employee severance related expenses   $ 3,900        
The Partnership (acquiree) | Pro Forma | Phantom Share Units (PSUs)            
Acquisitions            
Compensation expense associated with the vesting of phantom unit awards   4,200        
The Partnership (acquiree) | Pro Forma | The Partnership (acquiree)            
Acquisitions            
Transaction related expenses prior to the Transactions date   $ 2,600        
Azure | Legacy System contributed by Azure            
Acquisitions            
Aggregate consideration transferred $ 162,500          
Cash consideration $ 99,500          
IDR units issued as payment (in shares) 90