Summary Of Significant Accounting Policies (Narrative) (Details) (USD $)	12 Months Ended					12 Months Ended		12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2013 Pioneer Southwest [Member]	Dec. 17, 2013 Pioneer Southwest [Member]	Dec. 31, 2010 EFS Midstream [Member]	Jun. 30, 2010 EFS Midstream [Member] Rate	Dec. 31, 2013 Wolfcamp [Member] Rate	Dec. 17, 2013 Limited Partner Interest [Member] Rate	Dec. 17, 2013 General Partner Interest [Member] Rate
Summary Of Significant Accounting Policies [Line Items]
Accounts receivable - trade	$ 430,732,000	$ 316,854,000
Allowances for doubtful accounts	1,400,000	1,500,000
Natural gas processing plants number	6
Treating facilities number	9
Operational natural gas processing plants	2
Operational treating facilities	9
Third party revenues, processing plants and treating facilities	57,200,000	34,400,000	42,600,000
Third party expenses, processing plants and treating facilities	30,100,000	26,500,000	22,600,000
Goodwill, Written off Related to Sale of Business Unit	23,800,000
Joint Venture Investment Ownership Percentage								40.00%
Percentage of interest sold							49.90%
Proceeds from sale of interest in EFS Midstream						46,400,000
Deferred gain on sale of EFS midstream						46,200,000
EFS midstream deferred gain amortization period, years						20
Stock Issued During Period, Shares, New Issues	10,350,000		5,500,000
Proceeds from issuance of common stock, net of issuance	1,280,916,000	0	484,160,000
Partnerships interest									52.40%	0.10%
Share Per Unit Exchange Ratio					0.2325
Noncontrolling interest in consolidating subsidiaries	13,174,000	177,954,000
Net income attributable to noncontrolling interests	(38,865,000)	(50,537,000)	(47,425,000)
Deferred Revenue, Revenue Recognized		$ 42,100,000	$ 45,000,000
Basis points added to variable interest rate				162.5