The cash inflow from the issuance of common stock, preferred stock, treasury stock, stock options, and other types of equity.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Financing Activities

-URI http://asc.fasb.org/extlink&oid=6513228

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 95

-Paragraph 18

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 14

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3255-108585

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 95

-Paragraph 19

-Subparagraph a

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Name:	us-gaap_ProceedsFromIssuanceOrSaleOfEquity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Partners' Capital and Distributions Narrative (Details) (USD $)	9 Months Ended		3 Months Ended		9 Months Ended
	Sep. 30, 2013	Feb. 27, 2013	Sep. 30, 2013 Class F Units [Member]	Sep. 30, 2012 Class F Units [Member]	Sep. 30, 2013 Class F Units [Member]	Sep. 30, 2012 Class F Units [Member]
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares			6,274,483	0	6,274,483	0
Sales price per Class F common unit		$ 23.91
Discount per Class F common unit		2.19
Stock Issued During Period, Shares, Issued for Cash	149,000,000
Remaining amount available to be issued under the Equity Distribution Agreement	$ 34,000,000