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Equity and Distributions, Summary of Changes in Outstanding Units (Details) | 6 Months Ended
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Jun. 30, 2013
Common Units (Unrestricted) [Member] |
Summary of changes in outstanding units [Roll Forward] |
Number of units outstanding at December 31, 2012 (in units) | 894,919,851
Common units issued in connection with underwritten offering (in units) | 9,200,000
Common units issued in connection with our at-the-market program (in units) | 3,766,557
Common units issued in connection with our DRIP and EUPP (in units) | 2,440,784
Common units issued in connection with the vesting of unit options (in units) | 200,882
Common units issued in connection with the vesting of restricted common unit awards (in units) | 1,830,010
Restricted common units awards issued (in units) | 0
Forfeiture of restricted common unit awards (in units) | 0
Acquisition of treasury units in connection with vesting of equity-based awards (in units) | (614,191)
Number of units outstanding at June 30, 2013 | 911,743,893
Restricted Common Units [Member] |
Summary of changes in outstanding units [Roll Forward] |
Number of units outstanding at December 31, 2012 (in units) | 3,893,486
Common units issued in connection with underwritten offering (in units) | 0
Common units issued in connection with our at-the-market program (in units) | 0
Common units issued in connection with our DRIP and EUPP (in units) | 0
Common units issued in connection with the vesting of unit options (in units) | 0
Common units issued in connection with the vesting of restricted common unit awards (in units) | (1,830,010)
Restricted common units awards issued (in units) | 1,748,476
Forfeiture of restricted common unit awards (in units) | (120,882)
Acquisition of treasury units in connection with vesting of equity-based awards (in units) | 0
Number of units outstanding at June 30, 2013 | 3,691,070
Common units [Member] |
Summary of changes in outstanding units [Roll Forward] |
Number of units outstanding at December 31, 2012 (in units) | 898,813,337
Common units issued in connection with underwritten offering (in units) | 9,200,000
Common units issued in connection with our at-the-market program (in units) | 3,766,557
Common units issued in connection with our DRIP and EUPP (in units) | 2,440,784
Common units issued in connection with the vesting of unit options (in units) | 200,882
Common units issued in connection with the vesting of restricted common unit awards (in units) | 0
Restricted common units awards issued (in units) | 1,748,476
Forfeiture of restricted common unit awards (in units) | (120,882)
Acquisition of treasury units in connection with vesting of equity-based awards (in units) | (614,191)
Number of units outstanding at June 30, 2013 | 915,434,963

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- Definition Total change in restricted units and common units due to the vesting and subsequent conversion of restricted unit awards. + References No definition available. + Details
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- Definition Total restricted unit change during the year due to the forfeiture or settlement of restricted unit awards. + References No definition available. + Details
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- Definition The number of restricted units issued due to unit-based compensation. + References No definition available. + Details
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- Definition The number of units sold in connection with at-the-market program of each class of partners' capital account. Units represent shares of ownership of the general, limited, and preferred partners. + References No definition available. + Details
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- Definition The total number of units sold in connection with our discount programs, the DRIP and EUPP. + References No definition available. + Details
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- Definition The number of each class of partnership units outstanding at the balance sheet date. Units represent shares of ownership of the general, limited, and preferred partners. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.6-04.16(a)) -URI http://asc.fasb.org/extlink&oid=6488278&loc=d3e603758-122996 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 5 -Subparagraph (SAB TOPIC 4.F) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187171-122770 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 16 -Subparagraph a, b -Article 6 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.6-04.16(b)) -URI http://asc.fasb.org/extlink&oid=6488278&loc=d3e603758-122996 + Details
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- Definition The number of units sold in a public offering of each class of partners' capital account. Units represent shares of ownership of the general, limited, and preferred partners. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 5 -Subparagraph (SAB TOPIC 4.F) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187171-122770 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 16 -Subparagraph a, b -Article 6 + Details
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- Definition Units that were previously issued and have been repurchased during the year. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 5 -Subparagraph (SAB TOPIC 4.F) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187171-122770 + Details
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