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Commitments and Contingencies Crude Oil Releases (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Haynesville Crude Oil Release [Member]
Loss Contingencies [Line Items]
Environmental Remediation Expense		$ 1.0	$ 0.2	$ 1.0
Fouke Junction Crude Oil Release [Member]
Loss Contingencies [Line Items]
Environmental Remediation Expense	$ 0.0		0.0
Accrual for Environmental Loss Contingencies	$ 1.6		$ 1.6

X

- Definition

Total costs accrued as of the balance sheet date for environmental loss contingencies.

+ References

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-Publisher FASB



-Name Accounting Standards Codification



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-SubTopic 20



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