Annual report pursuant to Section 13 and 15(d)

Leased Properties (Details)

v2.4.0.8
Leased Properties (Details) (USD $)
Share data in Millions, unless otherwise specified
 1 Months Ended 12 Months Ended 1 Months Ended 12 Months Ended
Dec. 31, 2012
Dec. 31, 2013
Nov. 30, 2012
Nov. 30, 2011
Dec. 31, 2012
Pinedale Liquids Gathering System [Member]
Dec. 31, 2013
Pinedale Liquids Gathering System [Member]
mi
Point
Nov. 30, 2012
Pinedale Liquids Gathering System [Member]
Nov. 30, 2011
Pinedale Liquids Gathering System [Member]
Dec. 20, 2012
Secured Debt [Member]
Key Bank [Member]
Pinedale Liquids Gathering System [Member]
Sale Leaseback Transaction [Line Items]                  
Cash paid for acquisition         $ 205,000,000        
Fair value of investements acquired         23,000,000        
Shares issued with acquisition         13        
Shares issued with acquisition, value         73,600,000        
Length of transmission lines physical assets           150      
Number of receipt points           107      
Estimated useful lives of assets           26 years      
Proceeds from non-controlling interest 30,000,000 0 0 0 30,000,000        
Proceeds from contributions from parent         108,300,000        
Available-for-sale Securities           20,000,000      
Settlement date         Dec. 20, 2012        
Long-term debt 70,000,000 70,000,000 0           70,000,000
Line of Credit Facility, Expiration Date   Oct. 29, 2013              
Ownership percentage by noncontrolling owners         18.95%        
Non controlling economic interest pinedale GP         81.05%        
Depreciation expense $ 499,357 $ 11,429,980 $ 1,118,269 $ 364,254 $ 286,000 $ 8,900,000 $ 0 $ 0