v2.4.0.8
Investments in Non-Controlled Entities (Details) (USD $)
 3 Months Ended 3 Months Ended 3 Months Ended 12 Months Ended 3 Months Ended
Mar. 31, 2014
Mar. 31, 2013
Mar. 31, 2014
Texas Frontera Llc [Member]
bbl
Mar. 31, 2014
Osage Pipeline Co [Member]
mi
Mar. 31, 2014
Double Eagle Pipeline Llc [Member]
mi
Dec. 31, 2013
Double Eagle Pipeline Llc [Member]
Mar. 31, 2014
BridgeTex [Member]
mi
Dec. 31, 2013
BridgeTex [Member]
Sale of Emission Reduction Credits [Member]
Dec. 31, 2013
BridgeTex [Member]
Sale of Easement Rights [Member]
Dec. 31, 2013
BridgeTex [Member]
Sale of Easement Rights [Member]
Income Statement [Member]
Dec. 31, 2013
BridgeTex [Member]
Sale of Easement Rights [Member]
Deferred Income [Member]
Mar. 31, 2014
All Other Equity Investments [Member]
Schedule of Equity Method Investments [Line Items]                        
Interest in equity method investment     50.00% 50.00% 50.00%   50.00%          
Storage Capacity     1,000,000                  
Pipeline Length       135 195   450          
Equity Method Investments Excess Investment Gross       $ 21,700,000                
Equity Method Investments Unamortized Excess Investment Net       15,000,000                
Related Party Transaction, Other Revenues from Transactions with Related Party         500,000              
Accounts Receivable, Related Parties, Current         300,000 200,000            
Related Party Transaction, Amounts of Transaction               4,800,000 1,400,000 700,000 700,000  
Change in Equity Method Investments [Roll Forward]                        
Investment at December 31, 2013 360,852,000           246,875,000         113,977,000
Additional investment 127,698,000 47,020,000         126,748,000         950,000
Other adjustment to investment (650,000)           0         (650,000)
Proportionate share of earnings (loss) 654,000           (20,000)         674,000
Amortization of excess investment and capitalized interest (188,000)           0         (188,000)
Earnings (losses) of non-controlled entities 466,000 2,051,000         (20,000)         486,000
Distributions of earnings from investments in non-controlled entities 384,000 676,000         0         384,000
Distributions in excess of earnings of non-controlled entities 687,000 188,000         0         687,000
Investment at March 31, 2014 487,295,000           373,603,000         113,692,000
Equity Method Investment, Summarized Financial Information, Current Assets 97,858,000           78,654,000         19,204,000
Equity Method Investment, Summarized Financial Information, Noncurrent Assets 810,702,000           634,188,000         176,514,000
Equity Method Investment, Summarized Financial Information, Assets 908,560,000           712,842,000         195,718,000
Equity Method Investment, Summarized Financial Information, Current Liabilities 104,936,000           101,712,000         3,224,000
Equity Method Investment, Summarized Financial Information, Noncurrent Liabilities 96,000           0         96,000
Equity Method Investment, Summarized Financial Information, Liabilities 105,032,000           101,712,000         3,320,000
Equity Method Investment Summarized Financial Information, Equity 803,528,000           611,130,000         192,398,000
Equity Method Investment, Summarized Financial Information, Revenue 6,755,000           0         6,755,000
Equity Method Investment, Summarized Financial Information, Net Income (Loss) $ 1,307,000           $ (40,000)         $ 1,347,000