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Equity Distributions Earned (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended			9 Months Ended
	Sep. 30, 2013		Sep. 30, 2012	Sep. 30, 2013		Sep. 30, 2012
Distributions Earned by Limited or General Partners [Line Items]
General partner's interest	$ 198		$ 0	$ 580		$ 0
Limited partners' distribution	9,933		0	29,048		0
Cash distribution per unit	$ 0.405	[1]		$ 1.185	[1]
Common [Member]
Distributions Earned by Limited or General Partners [Line Items]
Limited partners' distribution	4,875		0	14,249		0
Subordinated [Member]
Distributions Earned by Limited or General Partners [Line Items]
Limited partners' distribution	$ 4,860		$ 0	$ 14,219		$ 0
[1] Adjusted to include the historical results of the Tyler Terminal and Tank Assets. See Notes 1 and 2 for further discussion.

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