v3.3.1.900
ORGANIZATION AND DESCRIPTION OF BUSINESS (Details)
$ / shares in Units, $ in Thousands
12 Months Ended
Dec. 31, 2015
region
shares
Aug. 06, 2015
USD ($)
a
Plant
contract
location
mi
shares
MMcf
Jul. 17, 2015
USD ($)
$ / shares
shares
Jun. 22, 2015
USD ($)
Jun. 17, 2015
$ / shares
shares
Feb. 27, 2015
USD ($)
a
Plant
region
mi
shares
Dec. 31, 2015
USD ($)
region
shares
Feb. 26, 2015
region
Partnership Equity and Distributions                
General partner ownership interest 1.93%              
General Partners' Capital Account, Units Outstanding 429,365           429,365  
Payment for redemption of IDR units | $           $ 63,000    
Cash payment for contributed assets | $           99,500 $ 99,500  
Public offering of common units | $             49,549  
Proceeds from public offering on common units | $             $ 49,549  
Legacy System contributed by Azure                
Partnership Equity and Distributions                
Aggregate consideration transferred | $           $ 162,500    
IDR units issued as payment (in shares)           90    
Distance of gathering lines (in miles) | mi           666    
Area of land (in acres) | a           100,000    
Number of major downstream markets (in regions) | region           7    
Number of third-party processing plants (in plants) | Plant           3    
Common Units                
Partnership Equity and Distributions                
Limited partner's capital, units outstanding (in shares) 13,044,654           13,044,654  
Units issued as consideration (in shares)             255,319  
Public offering of common units | $       $ 48,300        
Proceeds from public offering on common units | $       $ 48,300        
Common Units | Option granted to underwriters                
Partnership Equity and Distributions                
Limited partner interests, number of units offered to the public (in shares)     90,000   3,500,000      
Limited partner interests, public offering, price per common unit (in dollars per share) | $ / shares     $ 14.17   $ 14.17      
Public offering of common units | $     $ 1,200          
Limited partner interests, additional units offered, option period         30 days      
Limited partner interests, additional units offered for optional purchase (in shares)         525,000      
Proceeds from public offering on common units | $     $ 1,200          
Subordinate Units                
Partnership Equity and Distributions                
Limited partner's capital, units outstanding (in shares) 8,724,545           8,724,545  
Azure                
Partnership Equity and Distributions                
Number of gathering systems operated (in regions) | region 2           2 3
Azure | Transaction Agreement                
Partnership Equity and Distributions                
Percentage of equity interests in General Partner acquired           100.00%    
Percentage of our incentive distribution rights acquired           90.00%    
Cash received, net | $           $ 92,500    
ETG System                
Partnership Equity and Distributions                
Distance of gathering lines (in miles) | mi   255            
Area of land (in acres) | a   336,000            
Number of long-term producer contracts (in contracts) | contract   23            
Number of treating plants (in plants) | Plant   2            
Processing capacity per day (in MMc/f) | MMcf   5            
Pipeline capacity per day (in MMc/f) | MMcf   17.50            
Number of interconnections with major interstate pipelines (in locations) | location   4            
ETG System | Common Units                
Partnership Equity and Distributions                
Units issued as consideration (in shares)   255,319            
Azure                
Partnership Equity and Distributions                
General partner ownership interest 1.93%              
Azure | Legacy System contributed by Azure                
Partnership Equity and Distributions                
Aggregate consideration transferred | $           162,500    
Cash payment for contributed assets | $           $ 99,500    
IDR units issued as payment (in shares)           90    
Azure | Common Units                
Partnership Equity and Distributions                
Limited partner's capital, units outstanding (in shares) 255,319           255,319  
Limited partner's ownership percentage             1.20%  
Azure | ETG System                
Partnership Equity and Distributions                
Percentage of equity interests in General Partner acquired   100.00%            
Draw from credit facility to finance cash consideration | $   $ 80,000            
Azure | ETG System | Common Units                
Partnership Equity and Distributions                
Units issued as consideration (in shares)   255,319         255,319  
General Partner | Common Units                
Partnership Equity and Distributions                
Limited partner's ownership percentage             1.20%  
Publicly Held Units | Common Units                
Partnership Equity and Distributions                
Limited partner's capital, units outstanding (in shares) 10,850,070           10,850,070  
Limited partner's ownership percentage 49.80%           49.80%  
NuDevco | Common Units                
Partnership Equity and Distributions                
Limited partner's capital, units outstanding (in shares) 1,939,265           1,939,265  
Limited partner's ownership percentage 8.90%           8.90%  
NuDevco | Subordinate Units                
Partnership Equity and Distributions                
Limited partner's capital, units outstanding (in shares) 8,724,545           8,724,545  
Limited partner's ownership percentage 40.10%           40.10%  
NuDevco | Azure                
Partnership Equity and Distributions                
Payment to acquire all of the outstanding membership interests in our General Partner | $           $ 7,000    
Option to acquire common and subordinated units held by NuDevco, percent of units held           20.00%    
IDRH | Transaction Agreement                
Partnership Equity and Distributions                
Number of IDR units recapitalized into (in shares)           100    
Number of IDR units redeemed           90    
Payment for redemption of IDR units | $           $ 63,000    
Incentive Distribution Rights [Member] | Azure                
Partnership Equity and Distributions                
Percentage of incentive distribution rights owned 90.00%           90.00%  
Incentive Distribution Rights [Member] | NuDevco                
Partnership Equity and Distributions                
Percentage of incentive distribution rights owned 10.00%           10.00%