Partners' Capital and Distributions (Tables)

3 Months Ended

Mar. 31, 2015

Partners’ Capital and Distributions [Abstract]

Schedule of Stockholders Equity [Table Text Block]

The change in common and Class F units during the three months endedMarch 31, 2015 was as follows:

	Common	Class F
Balance - December 31, 2014	409,406,482	6,274,483
Issuance of common units under LTIP, net of forfeitures and tax withholding	20,098	—
Issuance of common units under the equity distribution agreement	1,516,677	—
Balance - March 31, 2015	410,943,257	6,274,483