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Subsequent Events (Notes)	12 Months Ended
	Dec. 31, 2015
Subsequent Events [Abstract]
Subsequent Events [Text Block]	Subsequent Events Distribution Declaration On January 25, 2016, our general partner's board of directors declared a quarterly cash distribution of $0.590 per share, paid on February 12, 2016, to unitholders of record on February 5, 2016.     Expirations of Subordination Period As a result of the cash distribution paid on February 12, 2016 and confirmation by the board of directors of our general partner based on the recommendation of the conflicts committee, the subordination period with respect to the Partnership’s 11,999,258 subordinated units expired on February 25, 2016, and each of the outstanding subordinated units converted into common units. The converted units will participate pro rata with the other common units in distributions of available cash.

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The entire disclosure for significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, catastrophic loss, significant foreign exchange rate changes, loans to insiders or affiliates, and transactions not in the ordinary course of business.

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