Commitments and Contingencies Commitments and Contingencies 2 (Details) (USD $)	0 Months Ended	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2014	Dec. 16, 2013	Dec. 31, 2012	Dec. 31, 2011	Apr. 22, 2014	Jan. 14, 2011 acre
Loss Contingencies [Line Items]
Gathering System, Fair Value		$ 13,000,000
Accrual for Environmental Loss Contingencies		0
Litigation Settlement, Amount		2,400,000
Payments for Legal Settlements		2,400,000
Material payments for legal environmental or tax settlements	0	0	0	0
Carry And Earning Agreement [Member]
Loss Contingencies [Line Items]
Contractual Obligation Amount, Penalty Waived Per Well							200,000
Contractual Obligation, Acre Of Tracts							160
Contractual Obligation, Contingent Construction Expense						9,000,000
Third Party Share of Construction Costs, Percentage							50.00%
Contractual Obligation, Penalty as Percentage of Difference Between Specified Amount and Actual Expended						50.00%
Contractual Obligation, Specified Amount for Penalty Calculation						12,000,000
Non Compliance To Regulations [Member]
Loss Contingencies [Line Items]
Litigation Settlement, Expense					$ 2,000,000