Quarterly report pursuant to Section 13 or 15(d)

Leased Properties - Pinedale LGS (Details)

v3.4.0.3
Leased Properties - Pinedale LGS (Details) - USD ($)
3 Months Ended
Mar. 31, 2016
Mar. 31, 2015
Mar. 30, 2016
Dec. 31, 2015
Dec. 20, 2012
Sale Leaseback Transaction [Line Items]          
Principal balance $ 150,052,573     $ 150,732,752  
Pinedale Liquids Gathering System [Member]          
Sale Leaseback Transaction [Line Items]          
Estimated useful lives of assets 26 years        
Ownership percentage by noncontrolling owners 18.95%        
Non controlling economic interest pinedale GP 81.05%        
Value of economic interest $ 47,400,000        
Key Bank [Member] | Secured Debt [Member] | Pinedale Liquids Gathering System [Member]          
Sale Leaseback Transaction [Line Items]          
Maximum borrowing capacity         $ 70,000,000
Principal balance     $ 58,500,000    
Assets Leased to Others [Member] | Pinedale Liquids Gathering System [Member]          
Sale Leaseback Transaction [Line Items]          
Depreciation $ 2,200,000 $ 2,200,000