v3.4.0.3
EQUITY BASED COMPENSATION (Details)
$ in Millions
3 Months Ended
Jul. 09, 2015
installment
shares
Feb. 27, 2015
shares
Mar. 31, 2016
USD ($)
installment
shares
Dec. 31, 2015
shares
Feb. 26, 2015
shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Granted (in shares)     153,500    
Unit awards outstanding prior to Transactions     469,346 367,491  
NuDevco          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Number of annual vesting installment | installment     5    
Long Term Incentive Plan (LTIP)          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Maximum number of common units issuable     1,750,000    
Long Term Incentive Plan (LTIP) | Phantom Share Units (PSUs)          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Number of common units that the share-based award is the economic equivalent of (in shares)     1    
Number of common units that the share-based award holder is entitled to receive (in shares)     1    
Long Term Incentive Plan (LTIP) | Employees of Related Party | Phantom Share Units (PSUs) | NuDevco          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Unit awards outstanding prior to Transactions         278,400
Compensation expense associated with the vesting of phantom unit awards | $     $ 4.2    
Common units issued   196,108      
Cash payment, withholding taxes on vested phantom units | $     1.9    
Cash payment related to the distribution equivalent rights associated with the vested phantom units | $     $ 0.2    
Long Term Incentive Plan (LTIP) | Certain named executive officers and employees of related party | Phantom Share Units (PSUs) | General Partner Interest          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Granted (in shares) 379,544        
Number of annual vesting installment | installment 3        
Long Term Incentive Plan (LTIP) | An employee of Related Party | Phantom Share Units (PSUs) | General Partner Interest          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Granted (in shares) 3,522