Quarterly report pursuant to Section 13 or 15(d)

Leases Leases (Details)

v2.4.0.8
Leases Leases (Details)
3 Months Ended 6 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Jun. 30, 2013
Dec. 31, 2013
Pinedale Liquids Gathering System [Member]
         
Operating Leased Assets [Line Items]          
Percentage of total leased properties 80.32%   80.32%   94.23%
Percentage of leased property revenue 71.85% 88.68% 73.42% 88.68%  
Portland Terminal Facility [Member]
         
Operating Leased Assets [Line Items]          
Percentage of total leased properties 16.21%   16.21%   0.00%
Percentage of leased property revenue 19.12% 0.00% 17.35% 0.00%  
Public Service Copmany of New Mexico [Member]
         
Operating Leased Assets [Line Items]          
Percentage of total leased properties 3.47%   3.47%   5.77%
Percentage of leased property revenue 9.03% 11.32% 9.23% 11.32%